From 5e293c424d8035449cadc90dc8bf55ee09e01ce6 Mon Sep 17 00:00:00 2001 From: Aurelien Jacobs Date: Thu, 26 Feb 2009 15:44:19 +0000 Subject: rename asf-enc.c to asfenc.c and asf.c to asfdec.c for consistency Originally committed as revision 17618 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/Makefile | 6 +- libavformat/asf-enc.c | 880 --------------------------------------- libavformat/asf.c | 1090 ------------------------------------------------- libavformat/asfdec.c | 1090 +++++++++++++++++++++++++++++++++++++++++++++++++ libavformat/asfenc.c | 880 +++++++++++++++++++++++++++++++++++++++ 5 files changed, 1973 insertions(+), 1973 deletions(-) delete mode 100644 libavformat/asf-enc.c delete mode 100644 libavformat/asf.c create mode 100644 libavformat/asfdec.c create mode 100644 libavformat/asfenc.c (limited to 'libavformat') diff --git a/libavformat/Makefile b/libavformat/Makefile index c6b99e7f43..f4b4024a04 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -18,9 +18,9 @@ OBJS-$(CONFIG_AMR_DEMUXER) += amr.o OBJS-$(CONFIG_AMR_MUXER) += amr.o OBJS-$(CONFIG_APC_DEMUXER) += apc.o OBJS-$(CONFIG_APE_DEMUXER) += ape.o -OBJS-$(CONFIG_ASF_DEMUXER) += asf.o asfcrypt.o riff.o -OBJS-$(CONFIG_ASF_MUXER) += asf-enc.o riff.o -OBJS-$(CONFIG_ASF_STREAM_MUXER) += asf-enc.o riff.o +OBJS-$(CONFIG_ASF_DEMUXER) += asfdec.o asfcrypt.o riff.o +OBJS-$(CONFIG_ASF_MUXER) += asfenc.o riff.o +OBJS-$(CONFIG_ASF_STREAM_MUXER) += asfenc.o riff.o OBJS-$(CONFIG_ASS_DEMUXER) += assdec.o OBJS-$(CONFIG_ASS_MUXER) += assenc.o OBJS-$(CONFIG_AU_DEMUXER) += au.o raw.o diff --git a/libavformat/asf-enc.c b/libavformat/asf-enc.c deleted file mode 100644 index ae6cc2d09a..0000000000 --- a/libavformat/asf-enc.c +++ /dev/null @@ -1,880 +0,0 @@ -/* - * ASF muxer - * Copyright (c) 2000, 2001 Fabrice Bellard - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ -#include "avformat.h" -#include "metadata.h" -#include "riff.h" -#include "asf.h" - -#undef NDEBUG -#include - - -#define ASF_INDEXED_INTERVAL 10000000 -#define ASF_INDEX_BLOCK 600 - -#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE 0x2 -#define ASF_PACKET_ERROR_CORRECTION_FLAGS (\ - ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT | \ - ASF_PACKET_ERROR_CORRECTION_DATA_SIZE\ - ) - -#if (ASF_PACKET_ERROR_CORRECTION_FLAGS != 0) -# define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 1 -#else -# define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 0 -#endif - -#define ASF_PPI_PROPERTY_FLAGS (\ - ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE | \ - ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD | \ - ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE | \ - ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE \ - ) - -#define ASF_PPI_LENGTH_TYPE_FLAGS 0 - -#define ASF_PAYLOAD_FLAGS ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD - -#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE)) -# define ASF_PPI_SEQUENCE_FIELD_SIZE 1 -#endif -#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE)) -# define ASF_PPI_SEQUENCE_FIELD_SIZE 2 -#endif -#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE)) -# define ASF_PPI_SEQUENCE_FIELD_SIZE 4 -#endif -#ifndef ASF_PPI_SEQUENCE_FIELD_SIZE -# define ASF_PPI_SEQUENCE_FIELD_SIZE 0 -#endif - - -#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE)) -# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 1 -#endif -#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE)) -# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 2 -#endif -#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE)) -# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 4 -#endif -#ifndef ASF_PPI_PACKET_LENGTH_FIELD_SIZE -# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 0 -#endif - -#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE)) -# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 1 -#endif -#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE)) -# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 2 -#endif -#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE)) -# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 4 -#endif -#ifndef ASF_PPI_PADDING_LENGTH_FIELD_SIZE -# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 0 -#endif - -#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE)) -# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 1 -#endif -#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE)) -# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 2 -#endif -#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE)) -# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 4 -#endif -#ifndef ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE -# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 0 -#endif - -#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE)) -# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 1 -#endif -#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE)) -# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 2 -#endif -#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE)) -# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 4 -#endif -#ifndef ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE -# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 0 -#endif - -#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE)) -# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 1 -#endif -#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE)) -# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 2 -#endif -#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE)) -# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 4 -#endif -#ifndef ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE -# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 0 -#endif - -#if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE)) -# define ASF_PAYLOAD_LENGTH_FIELD_SIZE 1 -#endif -#if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE)) -# define ASF_PAYLOAD_LENGTH_FIELD_SIZE 2 -#endif -#ifndef ASF_PAYLOAD_LENGTH_FIELD_SIZE -# define ASF_PAYLOAD_LENGTH_FIELD_SIZE 0 -#endif - -#define PACKET_HEADER_MIN_SIZE (\ - ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE + \ - ASF_PACKET_ERROR_CORRECTION_DATA_SIZE + \ - 1 + /*Length Type Flags*/ \ - 1 + /*Property Flags*/ \ - ASF_PPI_PACKET_LENGTH_FIELD_SIZE + \ - ASF_PPI_SEQUENCE_FIELD_SIZE + \ - ASF_PPI_PADDING_LENGTH_FIELD_SIZE + \ - 4 + /*Send Time Field*/ \ - 2 /*Duration Field*/ \ - ) - - -// Replicated Data shall be at least 8 bytes long. -#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH 0x08 - -#define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD (\ - 1 + /*Stream Number*/ \ - ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \ - ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \ - ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \ - ASF_PAYLOAD_REPLICATED_DATA_LENGTH \ - ) - -#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS (\ - 1 + /*Stream Number*/ \ - ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \ - ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \ - ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \ - ASF_PAYLOAD_REPLICATED_DATA_LENGTH + \ - ASF_PAYLOAD_LENGTH_FIELD_SIZE \ - ) - -#define SINGLE_PAYLOAD_DATA_LENGTH (\ - PACKET_SIZE - \ - PACKET_HEADER_MIN_SIZE - \ - PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD \ - ) - -#define MULTI_PAYLOAD_CONSTANT (\ - PACKET_SIZE - \ - PACKET_HEADER_MIN_SIZE - \ - 1 - /*Payload Flags*/ \ - 2*PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS \ - ) - -static const AVCodecTag codec_asf_bmp_tags[] = { - { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') }, - { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') }, - { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, - { CODEC_ID_NONE, 0 }, -}; - -#define PREROLL_TIME 3100 - -static void put_guid(ByteIOContext *s, const GUID *g) -{ - assert(sizeof(*g) == 16); - put_buffer(s, *g, sizeof(*g)); -} - -static void put_str16_nolen(ByteIOContext *s, const char *tag); -static void put_str16(ByteIOContext *s, const char *tag) -{ - put_le16(s,strlen(tag) + 1); - put_str16_nolen(s, tag); -} - -static void put_str16_nolen(ByteIOContext *s, const char *tag) -{ - int c; - - do{ - c = (uint8_t)*tag++; - put_le16(s, c); - }while(c); -} - -static int64_t put_header(ByteIOContext *pb, const GUID *g) -{ - int64_t pos; - - pos = url_ftell(pb); - put_guid(pb, g); - put_le64(pb, 24); - return pos; -} - -/* update header size */ -static void end_header(ByteIOContext *pb, int64_t pos) -{ - int64_t pos1; - - pos1 = url_ftell(pb); - url_fseek(pb, pos + 16, SEEK_SET); - put_le64(pb, pos1 - pos); - url_fseek(pb, pos1, SEEK_SET); -} - -/* write an asf chunk (only used in streaming case) */ -static void put_chunk(AVFormatContext *s, int type, int payload_length, int flags) -{ - ASFContext *asf = s->priv_data; - ByteIOContext *pb = s->pb; - int length; - - length = payload_length + 8; - put_le16(pb, type); - put_le16(pb, length); //size - put_le32(pb, asf->seqno);//sequence number - put_le16(pb, flags); /* unknown bytes */ - put_le16(pb, length); //size_confirm - asf->seqno++; -} - -/* convert from unix to windows time */ -static int64_t unix_to_file_time(int ti) -{ - int64_t t; - - t = ti * INT64_C(10000000); - t += INT64_C(116444736000000000); - return t; -} - -/* write the header (used two times if non streamed) */ -static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data_chunk_size) -{ - ASFContext *asf = s->priv_data; - ByteIOContext *pb = s->pb; - AVMetadataTag *title, *author, *copyright, *comment; - int header_size, n, extra_size, extra_size2, wav_extra_size, file_time; - int has_title; - int metadata_count; - AVCodecContext *enc; - int64_t header_offset, cur_pos, hpos; - int bit_rate; - int64_t duration; - - title = av_metadata_get(s->metadata, "title" , NULL, 0); - author = av_metadata_get(s->metadata, "author" , NULL, 0); - copyright = av_metadata_get(s->metadata, "copyright", NULL, 0); - comment = av_metadata_get(s->metadata, "comment" , NULL, 0); - - duration = asf->duration + PREROLL_TIME * 10000; - has_title = title || author || copyright || comment; - metadata_count = s->metadata ? s->metadata->count : 0; - - bit_rate = 0; - for(n=0;nnb_streams;n++) { - enc = s->streams[n]->codec; - - av_set_pts_info(s->streams[n], 32, 1, 1000); /* 32 bit pts in ms */ - - bit_rate += enc->bit_rate; - } - - if (asf->is_streamed) { - put_chunk(s, 0x4824, 0, 0xc00); /* start of stream (length will be patched later) */ - } - - put_guid(pb, &asf_header); - put_le64(pb, -1); /* header length, will be patched after */ - put_le32(pb, 3 + has_title + !!metadata_count + s->nb_streams); /* number of chunks in header */ - put_byte(pb, 1); /* ??? */ - put_byte(pb, 2); /* ??? */ - - /* file header */ - header_offset = url_ftell(pb); - hpos = put_header(pb, &file_header); - put_guid(pb, &my_guid); - put_le64(pb, file_size); - file_time = 0; - put_le64(pb, unix_to_file_time(file_time)); - put_le64(pb, asf->nb_packets); /* number of packets */ - put_le64(pb, duration); /* end time stamp (in 100ns units) */ - put_le64(pb, asf->duration); /* duration (in 100ns units) */ - put_le64(pb, PREROLL_TIME); /* start time stamp */ - put_le32(pb, (asf->is_streamed || url_is_streamed(pb)) ? 3 : 2); /* ??? */ - put_le32(pb, asf->packet_size); /* packet size */ - put_le32(pb, asf->packet_size); /* packet size */ - put_le32(pb, bit_rate); /* Nominal data rate in bps */ - end_header(pb, hpos); - - /* unknown headers */ - hpos = put_header(pb, &head1_guid); - put_guid(pb, &head2_guid); - put_le32(pb, 6); - put_le16(pb, 0); - end_header(pb, hpos); - - /* title and other infos */ - if (has_title) { - hpos = put_header(pb, &comment_header); - put_le16(pb, title ? 2 * (strlen(title->value ) + 1) : 0); - put_le16(pb, author ? 2 * (strlen(author->value ) + 1) : 0); - put_le16(pb, copyright ? 2 * (strlen(copyright->value) + 1) : 0); - put_le16(pb, comment ? 2 * (strlen(comment->value ) + 1) : 0); - put_le16(pb, 0); - if (title ) put_str16_nolen(pb, title->value ); - if (author ) put_str16_nolen(pb, author->value ); - if (copyright) put_str16_nolen(pb, copyright->value); - if (comment ) put_str16_nolen(pb, comment->value ); - end_header(pb, hpos); - } - if (metadata_count) { - AVMetadataTag *tag = NULL; - hpos = put_header(pb, &extended_content_header); - put_le16(pb, metadata_count); - while ((tag = av_metadata_get(s->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX))) { - put_le16(pb, 2*(strlen(tag->key) + 3) + 1); - put_le16(pb, 'W'); - put_le16(pb, 'M'); - put_le16(pb, '/'); - put_str16_nolen(pb, tag->key); - put_le16(pb, 0); - put_le16(pb, 2*strlen(tag->value) + 1); - put_str16_nolen(pb, tag->value); - } - end_header(pb, hpos); - } - - /* stream headers */ - for(n=0;nnb_streams;n++) { - int64_t es_pos; - // ASFStream *stream = &asf->streams[n]; - - enc = s->streams[n]->codec; - asf->streams[n].num = n + 1; - asf->streams[n].seq = 0; - - - switch(enc->codec_type) { - case CODEC_TYPE_AUDIO: - wav_extra_size = 0; - extra_size = 18 + wav_extra_size; - extra_size2 = 8; - break; - default: - case CODEC_TYPE_VIDEO: - wav_extra_size = enc->extradata_size; - extra_size = 0x33 + wav_extra_size; - extra_size2 = 0; - break; - } - - hpos = put_header(pb, &stream_header); - if (enc->codec_type == CODEC_TYPE_AUDIO) { - put_guid(pb, &audio_stream); - put_guid(pb, &audio_conceal_spread); - } else { - put_guid(pb, &video_stream); - put_guid(pb, &video_conceal_none); - } - put_le64(pb, 0); /* ??? */ - es_pos = url_ftell(pb); - put_le32(pb, extra_size); /* wav header len */ - put_le32(pb, extra_size2); /* additional data len */ - put_le16(pb, n + 1); /* stream number */ - put_le32(pb, 0); /* ??? */ - - if (enc->codec_type == CODEC_TYPE_AUDIO) { - /* WAVEFORMATEX header */ - int wavsize = put_wav_header(pb, enc); - if ((enc->codec_id != CODEC_ID_MP3) && (enc->codec_id != CODEC_ID_MP2) && (enc->codec_id != CODEC_ID_ADPCM_IMA_WAV) && (enc->extradata_size==0)) { - wavsize += 2; - put_le16(pb, 0); - } - - if (wavsize < 0) - return -1; - if (wavsize != extra_size) { - cur_pos = url_ftell(pb); - url_fseek(pb, es_pos, SEEK_SET); - put_le32(pb, wavsize); /* wav header len */ - url_fseek(pb, cur_pos, SEEK_SET); - } - /* ERROR Correction */ - put_byte(pb, 0x01); - if(enc->codec_id == CODEC_ID_ADPCM_G726 || !enc->block_align){ - put_le16(pb, 0x0190); - put_le16(pb, 0x0190); - }else{ - put_le16(pb, enc->block_align); - put_le16(pb, enc->block_align); - } - put_le16(pb, 0x01); - put_byte(pb, 0x00); - } else { - put_le32(pb, enc->width); - put_le32(pb, enc->height); - put_byte(pb, 2); /* ??? */ - put_le16(pb, 40 + enc->extradata_size); /* size */ - - /* BITMAPINFOHEADER header */ - put_bmp_header(pb, enc, codec_bmp_tags, 1); - } - end_header(pb, hpos); - } - - /* media comments */ - - hpos = put_header(pb, &codec_comment_header); - put_guid(pb, &codec_comment1_header); - put_le32(pb, s->nb_streams); - for(n=0;nnb_streams;n++) { - AVCodec *p; - - enc = s->streams[n]->codec; - p = avcodec_find_encoder(enc->codec_id); - - if(enc->codec_type == CODEC_TYPE_AUDIO) - put_le16(pb, 2); - else if(enc->codec_type == CODEC_TYPE_VIDEO) - put_le16(pb, 1); - else - put_le16(pb, -1); - - if(enc->codec_id == CODEC_ID_WMAV2) - put_str16(pb, "Windows Media Audio V8"); - else - put_str16(pb, p ? p->name : enc->codec_name); - put_le16(pb, 0); /* no parameters */ - - - /* id */ - if (enc->codec_type == CODEC_TYPE_AUDIO) { - put_le16(pb, 2); - put_le16(pb, enc->codec_tag); - } else { - put_le16(pb, 4); - put_le32(pb, enc->codec_tag); - } - if(!enc->codec_tag) - return -1; - } - end_header(pb, hpos); - - /* patch the header size fields */ - - cur_pos = url_ftell(pb); - header_size = cur_pos - header_offset; - if (asf->is_streamed) { - header_size += 8 + 30 + 50; - - url_fseek(pb, header_offset - 10 - 30, SEEK_SET); - put_le16(pb, header_size); - url_fseek(pb, header_offset - 2 - 30, SEEK_SET); - put_le16(pb, header_size); - - header_size -= 8 + 30 + 50; - } - header_size += 24 + 6; - url_fseek(pb, header_offset - 14, SEEK_SET); - put_le64(pb, header_size); - url_fseek(pb, cur_pos, SEEK_SET); - - /* movie chunk, followed by packets of packet_size */ - asf->data_offset = cur_pos; - put_guid(pb, &data_header); - put_le64(pb, data_chunk_size); - put_guid(pb, &my_guid); - put_le64(pb, asf->nb_packets); /* nb packets */ - put_byte(pb, 1); /* ??? */ - put_byte(pb, 1); /* ??? */ - return 0; -} - -static int asf_write_header(AVFormatContext *s) -{ - ASFContext *asf = s->priv_data; - - asf->packet_size = PACKET_SIZE; - asf->nb_packets = 0; - - asf->last_indexed_pts = 0; - asf->index_ptr = av_malloc( sizeof(ASFIndex) * ASF_INDEX_BLOCK ); - asf->nb_index_memory_alloc = ASF_INDEX_BLOCK; - asf->nb_index_count = 0; - asf->maximum_packet = 0; - - /* the data-chunk-size has to be 50, which is data_size - asf->data_offset - * at the moment this function is done. It is needed to use asf as - * streamable format. */ - if (asf_write_header1(s, 0, 50) < 0) { - //av_free(asf); - return -1; - } - - put_flush_packet(s->pb); - - asf->packet_nb_payloads = 0; - asf->packet_timestamp_start = -1; - asf->packet_timestamp_end = -1; - init_put_byte(&asf->pb, asf->packet_buf, asf->packet_size, 1, - NULL, NULL, NULL, NULL); - - return 0; -} - -static int asf_write_stream_header(AVFormatContext *s) -{ - ASFContext *asf = s->priv_data; - - asf->is_streamed = 1; - - return asf_write_header(s); -} - -static int put_payload_parsing_info( - AVFormatContext *s, - unsigned int sendtime, - unsigned int duration, - int nb_payloads, - int padsize - ) -{ - ASFContext *asf = s->priv_data; - ByteIOContext *pb = s->pb; - int ppi_size, i; - int64_t start= url_ftell(pb); - - int iLengthTypeFlags = ASF_PPI_LENGTH_TYPE_FLAGS; - - padsize -= PACKET_HEADER_MIN_SIZE; - if(asf->multi_payloads_present) - padsize--; - assert(padsize>=0); - - put_byte(pb, ASF_PACKET_ERROR_CORRECTION_FLAGS); - for (i = 0; i < ASF_PACKET_ERROR_CORRECTION_DATA_SIZE; i++){ - put_byte(pb, 0x0); - } - - if (asf->multi_payloads_present) - iLengthTypeFlags |= ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT; - - if (padsize > 0) { - if (padsize < 256) - iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE; - else - iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD; - } - put_byte(pb, iLengthTypeFlags); - - put_byte(pb, ASF_PPI_PROPERTY_FLAGS); - - if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD) - put_le16(pb, padsize - 2); - if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE) - put_byte(pb, padsize - 1); - - put_le32(pb, sendtime); - put_le16(pb, duration); - if (asf->multi_payloads_present) - put_byte(pb, nb_payloads | ASF_PAYLOAD_FLAGS); - - ppi_size = url_ftell(pb) - start; - - return ppi_size; -} - -static void flush_packet(AVFormatContext *s) -{ - ASFContext *asf = s->priv_data; - int packet_hdr_size, packet_filled_size; - - assert(asf->packet_timestamp_end >= asf->packet_timestamp_start); - - if (asf->is_streamed) { - put_chunk(s, 0x4424, asf->packet_size, 0); - } - - packet_hdr_size = put_payload_parsing_info( - s, - asf->packet_timestamp_start, - asf->packet_timestamp_end - asf->packet_timestamp_start, - asf->packet_nb_payloads, - asf->packet_size_left - ); - - packet_filled_size = PACKET_SIZE - asf->packet_size_left; - assert(packet_hdr_size <= asf->packet_size_left); - memset(asf->packet_buf + packet_filled_size, 0, asf->packet_size_left); - - put_buffer(s->pb, asf->packet_buf, asf->packet_size - packet_hdr_size); - - put_flush_packet(s->pb); - asf->nb_packets++; - asf->packet_nb_payloads = 0; - asf->packet_timestamp_start = -1; - asf->packet_timestamp_end = -1; - init_put_byte(&asf->pb, asf->packet_buf, asf->packet_size, 1, - NULL, NULL, NULL, NULL); -} - -static void put_payload_header( - AVFormatContext *s, - ASFStream *stream, - int presentation_time, - int m_obj_size, - int m_obj_offset, - int payload_len, - int flags - ) -{ - ASFContext *asf = s->priv_data; - ByteIOContext *pb = &asf->pb; - int val; - - val = stream->num; - if (flags & PKT_FLAG_KEY) - val |= ASF_PL_FLAG_KEY_FRAME; - put_byte(pb, val); - - put_byte(pb, stream->seq); //Media object number - put_le32(pb, m_obj_offset); //Offset Into Media Object - - // Replicated Data shall be at least 8 bytes long. - // The first 4 bytes of data shall contain the - // Size of the Media Object that the payload belongs to. - // The next 4 bytes of data shall contain the - // Presentation Time for the media object that the payload belongs to. - put_byte(pb, ASF_PAYLOAD_REPLICATED_DATA_LENGTH); - - put_le32(pb, m_obj_size); //Replicated Data - Media Object Size - put_le32(pb, presentation_time);//Replicated Data - Presentation Time - - if (asf->multi_payloads_present){ - put_le16(pb, payload_len); //payload length - } -} - -static void put_frame( - AVFormatContext *s, - ASFStream *stream, - AVStream *avst, - int timestamp, - const uint8_t *buf, - int m_obj_size, - int flags - ) -{ - ASFContext *asf = s->priv_data; - int m_obj_offset, payload_len, frag_len1; - - m_obj_offset = 0; - while (m_obj_offset < m_obj_size) { - payload_len = m_obj_size - m_obj_offset; - if (asf->packet_timestamp_start == -1) { - asf->multi_payloads_present = (payload_len < MULTI_PAYLOAD_CONSTANT); - - asf->packet_size_left = PACKET_SIZE; - if (asf->multi_payloads_present){ - frag_len1 = MULTI_PAYLOAD_CONSTANT - 1; - } - else { - frag_len1 = SINGLE_PAYLOAD_DATA_LENGTH; - } - asf->packet_timestamp_start = timestamp; - } - else { - // multi payloads - frag_len1 = asf->packet_size_left - PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS - PACKET_HEADER_MIN_SIZE - 1; - - if(frag_len1 < payload_len && avst->codec->codec_type == CODEC_TYPE_AUDIO){ - flush_packet(s); - continue; - } - } - if (frag_len1 > 0) { - if (payload_len > frag_len1) - payload_len = frag_len1; - else if (payload_len == (frag_len1 - 1)) - payload_len = frag_len1 - 2; //additional byte need to put padding length - - put_payload_header(s, stream, timestamp+PREROLL_TIME, m_obj_size, m_obj_offset, payload_len, flags); - put_buffer(&asf->pb, buf, payload_len); - - if (asf->multi_payloads_present) - asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS); - else - asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD); - asf->packet_timestamp_end = timestamp; - - asf->packet_nb_payloads++; - } else { - payload_len = 0; - } - m_obj_offset += payload_len; - buf += payload_len; - - if (!asf->multi_payloads_present) - flush_packet(s); - else if (asf->packet_size_left <= (PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS + PACKET_HEADER_MIN_SIZE + 1)) - flush_packet(s); - } - stream->seq++; -} - -static int asf_write_packet(AVFormatContext *s, AVPacket *pkt) -{ - ASFContext *asf = s->priv_data; - ASFStream *stream; - int64_t duration; - AVCodecContext *codec; - int64_t packet_st,pts; - int start_sec,i; - int flags= pkt->flags; - - codec = s->streams[pkt->stream_index]->codec; - stream = &asf->streams[pkt->stream_index]; - - if(codec->codec_type == CODEC_TYPE_AUDIO) - flags &= ~PKT_FLAG_KEY; - - pts = (pkt->pts != AV_NOPTS_VALUE) ? pkt->pts : pkt->dts; - assert(pts != AV_NOPTS_VALUE); - duration = pts * 10000; - asf->duration= FFMAX(asf->duration, duration + pkt->duration * 10000); - - packet_st = asf->nb_packets; - put_frame(s, stream, s->streams[pkt->stream_index], pkt->dts, pkt->data, pkt->size, flags); - - /* check index */ - if ((!asf->is_streamed) && (flags & PKT_FLAG_KEY)) { - start_sec = (int)(duration / INT64_C(10000000)); - if (start_sec != (int)(asf->last_indexed_pts / INT64_C(10000000))) { - for(i=asf->nb_index_count;i=asf->nb_index_memory_alloc) { - asf->nb_index_memory_alloc += ASF_INDEX_BLOCK; - asf->index_ptr = (ASFIndex*)av_realloc( asf->index_ptr, sizeof(ASFIndex) * asf->nb_index_memory_alloc ); - } - // store - asf->index_ptr[i].packet_number = (uint32_t)packet_st; - asf->index_ptr[i].packet_count = (uint16_t)(asf->nb_packets-packet_st); - asf->maximum_packet = FFMAX(asf->maximum_packet, (uint16_t)(asf->nb_packets-packet_st)); - } - asf->nb_index_count = start_sec; - asf->last_indexed_pts = duration; - } - } - return 0; -} - -// -static int asf_write_index(AVFormatContext *s, ASFIndex *index, uint16_t max, uint32_t count) -{ - ByteIOContext *pb = s->pb; - int i; - - put_guid(pb, &simple_index_header); - put_le64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2)*count); - put_guid(pb, &my_guid); - put_le64(pb, ASF_INDEXED_INTERVAL); - put_le32(pb, max); - put_le32(pb, count); - for(i=0; ipriv_data; - int64_t file_size,data_size; - - /* flush the current packet */ - if (asf->pb.buf_ptr > asf->pb.buffer) - flush_packet(s); - - /* write index */ - data_size = url_ftell(s->pb); - if ((!asf->is_streamed) && (asf->nb_index_count != 0)) { - asf_write_index(s, asf->index_ptr, asf->maximum_packet, asf->nb_index_count); - } - put_flush_packet(s->pb); - - if (asf->is_streamed || url_is_streamed(s->pb)) { - put_chunk(s, 0x4524, 0, 0); /* end of stream */ - } else { - /* rewrite an updated header */ - file_size = url_ftell(s->pb); - url_fseek(s->pb, 0, SEEK_SET); - asf_write_header1(s, file_size, data_size - asf->data_offset); - } - - put_flush_packet(s->pb); - av_free(asf->index_ptr); - return 0; -} - -#if CONFIG_ASF_MUXER -AVOutputFormat asf_muxer = { - "asf", - NULL_IF_CONFIG_SMALL("ASF format"), - "video/x-ms-asf", - "asf,wmv,wma", - sizeof(ASFContext), -#if CONFIG_LIBMP3LAME - CODEC_ID_MP3, -#else - CODEC_ID_MP2, -#endif - CODEC_ID_MSMPEG4V3, - asf_write_header, - asf_write_packet, - asf_write_trailer, - .flags = AVFMT_GLOBALHEADER, - .codec_tag= (const AVCodecTag* const []){codec_asf_bmp_tags, codec_bmp_tags, codec_wav_tags, 0}, -}; -#endif - -#if CONFIG_ASF_STREAM_MUXER -AVOutputFormat asf_stream_muxer = { - "asf_stream", - NULL_IF_CONFIG_SMALL("ASF format"), - "video/x-ms-asf", - "asf,wmv,wma", - sizeof(ASFContext), -#if CONFIG_LIBMP3LAME - CODEC_ID_MP3, -#else - CODEC_ID_MP2, -#endif - CODEC_ID_MSMPEG4V3, - asf_write_stream_header, - asf_write_packet, - asf_write_trailer, - .flags = AVFMT_GLOBALHEADER, - .codec_tag= (const AVCodecTag* const []){codec_asf_bmp_tags, codec_bmp_tags, codec_wav_tags, 0}, -}; -#endif //CONFIG_ASF_STREAM_MUXER diff --git a/libavformat/asf.c b/libavformat/asf.c deleted file mode 100644 index bcaf2a1c16..0000000000 --- a/libavformat/asf.c +++ /dev/null @@ -1,1090 +0,0 @@ -/* - * ASF compatible demuxer - * Copyright (c) 2000, 2001 Fabrice Bellard - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "libavutil/common.h" -#include "libavcodec/mpegaudio.h" -#include "avformat.h" -#include "riff.h" -#include "asf.h" -#include "asfcrypt.h" - -void ff_mms_set_stream_selection(URLContext *h, AVFormatContext *format); - -#undef NDEBUG -#include - -#define FRAME_HEADER_SIZE 17 -// Fix Me! FRAME_HEADER_SIZE may be different. - -static const GUID index_guid = { - 0x90, 0x08, 0x00, 0x33, 0xb1, 0xe5, 0xcf, 0x11, 0x89, 0xf4, 0x00, 0xa0, 0xc9, 0x03, 0x49, 0xcb -}; - -static const GUID stream_bitrate_guid = { /* (http://get.to/sdp) */ - 0xce, 0x75, 0xf8, 0x7b, 0x8d, 0x46, 0xd1, 0x11, 0x8d, 0x82, 0x00, 0x60, 0x97, 0xc9, 0xa2, 0xb2 -}; -/**********************************/ -/* decoding */ - -//#define DEBUG - -#ifdef DEBUG -#define PRINT_IF_GUID(g,cmp) \ -if (!memcmp(g, &cmp, sizeof(GUID))) \ - dprintf(NULL, "(GUID: %s) ", #cmp) - -static void print_guid(const GUID *g) -{ - int i; - PRINT_IF_GUID(g, asf_header); - else PRINT_IF_GUID(g, file_header); - else PRINT_IF_GUID(g, stream_header); - else PRINT_IF_GUID(g, audio_stream); - else PRINT_IF_GUID(g, audio_conceal_none); - else PRINT_IF_GUID(g, video_stream); - else PRINT_IF_GUID(g, video_conceal_none); - else PRINT_IF_GUID(g, command_stream); - else PRINT_IF_GUID(g, comment_header); - else PRINT_IF_GUID(g, codec_comment_header); - else PRINT_IF_GUID(g, codec_comment1_header); - else PRINT_IF_GUID(g, data_header); - else PRINT_IF_GUID(g, index_guid); - else PRINT_IF_GUID(g, head1_guid); - else PRINT_IF_GUID(g, head2_guid); - else PRINT_IF_GUID(g, my_guid); - else PRINT_IF_GUID(g, ext_stream_header); - else PRINT_IF_GUID(g, extended_content_header); - else PRINT_IF_GUID(g, ext_stream_embed_stream_header); - else PRINT_IF_GUID(g, ext_stream_audio_stream); - else PRINT_IF_GUID(g, metadata_header); - else PRINT_IF_GUID(g, stream_bitrate_guid); - else - dprintf(NULL, "(GUID: unknown) "); - for(i=0;i<16;i++) - dprintf(NULL, " 0x%02x,", (*g)[i]); - dprintf(NULL, "}\n"); -} -#undef PRINT_IF_GUID -#else -#define print_guid(g) -#endif - -static void get_guid(ByteIOContext *s, GUID *g) -{ - assert(sizeof(*g) == 16); - get_buffer(s, *g, sizeof(*g)); -} - -#if 0 -static void get_str16(ByteIOContext *pb, char *buf, int buf_size) -{ - int len, c; - char *q; - - len = get_le16(pb); - q = buf; - while (len > 0) { - c = get_le16(pb); - if ((q - buf) < buf_size - 1) - *q++ = c; - len--; - } - *q = '\0'; -} -#endif - -static void get_str16_nolen(ByteIOContext *pb, int len, char *buf, int buf_size) -{ - char* q = buf; - len /= 2; - while (len--) { - uint8_t tmp; - PUT_UTF8(get_le16(pb), tmp, if (q - buf < buf_size - 1) *q++ = tmp;) - } - *q = '\0'; -} - -static int asf_probe(AVProbeData *pd) -{ - /* check file header */ - if (!memcmp(pd->buf, &asf_header, sizeof(GUID))) - return AVPROBE_SCORE_MAX; - else - return 0; -} - -static int get_value(ByteIOContext *pb, int type){ - switch(type){ - case 2: return get_le32(pb); - case 3: return get_le32(pb); - case 4: return get_le64(pb); - case 5: return get_le16(pb); - default:return INT_MIN; - } -} - -static void get_tag(AVFormatContext *s, const char *key, int type, int len) -{ - char value[1024]; - if (type <= 1) { // unicode or byte - get_str16_nolen(s->pb, len, value, sizeof(value)); - } else if (type <= 5) { // boolean or DWORD or QWORD or WORD - uint64_t num = get_value(s->pb, type); - snprintf(value, sizeof(value), "%"PRIu64, num); - } else { - url_fskip(s->pb, len); - return; - } - if (strncmp(key, "WM/", 3)) - key += 3; - av_metadata_set(&s->metadata, key, value); -} - -static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap) -{ - ASFContext *asf = s->priv_data; - GUID g; - ByteIOContext *pb = s->pb; - AVStream *st; - ASFStream *asf_st; - int size, i; - int64_t gsize; - AVRational dar[128]; - uint32_t bitrate[128]; - - memset(dar, 0, sizeof(dar)); - memset(bitrate, 0, sizeof(bitrate)); - - get_guid(pb, &g); - if (memcmp(&g, &asf_header, sizeof(GUID))) - return -1; - get_le64(pb); - get_le32(pb); - get_byte(pb); - get_byte(pb); - memset(&asf->asfid2avid, -1, sizeof(asf->asfid2avid)); - for(;;) { - get_guid(pb, &g); - gsize = get_le64(pb); - dprintf(s, "%08"PRIx64": ", url_ftell(pb) - 24); - print_guid(&g); - dprintf(s, " size=0x%"PRIx64"\n", gsize); - if (!memcmp(&g, &data_header, sizeof(GUID))) { - asf->data_object_offset = url_ftell(pb); - // if not streaming, gsize is not unlimited (how?), and there is enough space in the file.. - if (!(asf->hdr.flags & 0x01) && gsize >= 100) { - asf->data_object_size = gsize - 24; - } else { - asf->data_object_size = (uint64_t)-1; - } - break; - } - if (gsize < 24) - return -1; - if (!memcmp(&g, &file_header, sizeof(GUID))) { - get_guid(pb, &asf->hdr.guid); - asf->hdr.file_size = get_le64(pb); - asf->hdr.create_time = get_le64(pb); - asf->nb_packets = get_le64(pb); - asf->hdr.play_time = get_le64(pb); - asf->hdr.send_time = get_le64(pb); - asf->hdr.preroll = get_le32(pb); - asf->hdr.ignore = get_le32(pb); - asf->hdr.flags = get_le32(pb); - asf->hdr.min_pktsize = get_le32(pb); - asf->hdr.max_pktsize = get_le32(pb); - asf->hdr.max_bitrate = get_le32(pb); - asf->packet_size = asf->hdr.max_pktsize; - } else if (!memcmp(&g, &stream_header, sizeof(GUID))) { - enum CodecType type; - int type_specific_size, sizeX; - uint64_t total_size; - unsigned int tag1; - int64_t pos1, pos2, start_time; - int test_for_ext_stream_audio, is_dvr_ms_audio=0; - - pos1 = url_ftell(pb); - - st = av_new_stream(s, 0); - if (!st) - return AVERROR(ENOMEM); - av_set_pts_info(st, 32, 1, 1000); /* 32 bit pts in ms */ - asf_st = av_mallocz(sizeof(ASFStream)); - if (!asf_st) - return AVERROR(ENOMEM); - st->priv_data = asf_st; - start_time = asf->hdr.preroll; - - if(!(asf->hdr.flags & 0x01)) { // if we aren't streaming... - st->duration = asf->hdr.send_time / - (10000000 / 1000) - start_time; - } - get_guid(pb, &g); - - test_for_ext_stream_audio = 0; - if (!memcmp(&g, &audio_stream, sizeof(GUID))) { - type = CODEC_TYPE_AUDIO; - } else if (!memcmp(&g, &video_stream, sizeof(GUID))) { - type = CODEC_TYPE_VIDEO; - } else if (!memcmp(&g, &command_stream, sizeof(GUID))) { - type = CODEC_TYPE_DATA; - } else if (!memcmp(&g, &ext_stream_embed_stream_header, sizeof(GUID))) { - test_for_ext_stream_audio = 1; - type = CODEC_TYPE_UNKNOWN; - } else { - return -1; - } - get_guid(pb, &g); - total_size = get_le64(pb); - type_specific_size = get_le32(pb); - get_le32(pb); - st->id = get_le16(pb) & 0x7f; /* stream id */ - // mapping of asf ID to AV stream ID; - asf->asfid2avid[st->id] = s->nb_streams - 1; - - get_le32(pb); - - if (test_for_ext_stream_audio) { - get_guid(pb, &g); - if (!memcmp(&g, &ext_stream_audio_stream, sizeof(GUID))) { - type = CODEC_TYPE_AUDIO; - is_dvr_ms_audio=1; - get_guid(pb, &g); - get_le32(pb); - get_le32(pb); - get_le32(pb); - get_guid(pb, &g); - get_le32(pb); - } - } - - st->codec->codec_type = type; - if (type == CODEC_TYPE_AUDIO) { - get_wav_header(pb, st->codec, type_specific_size); - if (is_dvr_ms_audio) { - // codec_id and codec_tag are unreliable in dvr_ms - // files. Set them later by probing stream. - st->codec->codec_id = CODEC_ID_PROBE; - st->codec->codec_tag = 0; - } - if (st->codec->codec_id == CODEC_ID_AAC) { - st->need_parsing = AVSTREAM_PARSE_NONE; - } else { - st->need_parsing = AVSTREAM_PARSE_FULL; - } - /* We have to init the frame size at some point .... */ - pos2 = url_ftell(pb); - if (gsize >= (pos2 + 8 - pos1 + 24)) { - asf_st->ds_span = get_byte(pb); - asf_st->ds_packet_size = get_le16(pb); - asf_st->ds_chunk_size = get_le16(pb); - get_le16(pb); //ds_data_size - get_byte(pb); //ds_silence_data - } - //printf("Descrambling: ps:%d cs:%d ds:%d s:%d sd:%d\n", - // asf_st->ds_packet_size, asf_st->ds_chunk_size, - // asf_st->ds_data_size, asf_st->ds_span, asf_st->ds_silence_data); - if (asf_st->ds_span > 1) { - if (!asf_st->ds_chunk_size - || (asf_st->ds_packet_size/asf_st->ds_chunk_size <= 1) - || asf_st->ds_packet_size % asf_st->ds_chunk_size) - asf_st->ds_span = 0; // disable descrambling - } - switch (st->codec->codec_id) { - case CODEC_ID_MP3: - st->codec->frame_size = MPA_FRAME_SIZE; - break; - case CODEC_ID_PCM_S16LE: - case CODEC_ID_PCM_S16BE: - case CODEC_ID_PCM_U16LE: - case CODEC_ID_PCM_U16BE: - case CODEC_ID_PCM_S8: - case CODEC_ID_PCM_U8: - case CODEC_ID_PCM_ALAW: - case CODEC_ID_PCM_MULAW: - st->codec->frame_size = 1; - break; - default: - /* This is probably wrong, but it prevents a crash later */ - st->codec->frame_size = 1; - break; - } - } else if (type == CODEC_TYPE_VIDEO) { - get_le32(pb); - get_le32(pb); - get_byte(pb); - size = get_le16(pb); /* size */ - sizeX= get_le32(pb); /* size */ - st->codec->width = get_le32(pb); - st->codec->height = get_le32(pb); - /* not available for asf */ - get_le16(pb); /* panes */ - st->codec->bits_per_coded_sample = get_le16(pb); /* depth */ - tag1 = get_le32(pb); - url_fskip(pb, 20); -// av_log(s, AV_LOG_DEBUG, "size:%d tsize:%d sizeX:%d\n", size, total_size, sizeX); - size= sizeX; - if (size > 40) { - st->codec->extradata_size = size - 40; - st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); - get_buffer(pb, st->codec->extradata, st->codec->extradata_size); - } - - /* Extract palette from extradata if bpp <= 8 */ - /* This code assumes that extradata contains only palette */ - /* This is true for all paletted codecs implemented in ffmpeg */ - if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) { - st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl)); -#ifdef WORDS_BIGENDIAN - for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)/4; i++) - st->codec->palctrl->palette[i] = bswap_32(((uint32_t*)st->codec->extradata)[i]); -#else - memcpy(st->codec->palctrl->palette, st->codec->extradata, - FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)); -#endif - st->codec->palctrl->palette_changed = 1; - } - - st->codec->codec_tag = tag1; - st->codec->codec_id = codec_get_id(codec_bmp_tags, tag1); - if(tag1 == MKTAG('D', 'V', 'R', ' ')) - st->need_parsing = AVSTREAM_PARSE_FULL; - } - pos2 = url_ftell(pb); - url_fskip(pb, gsize - (pos2 - pos1 + 24)); - } else if (!memcmp(&g, &comment_header, sizeof(GUID))) { - int len1, len2, len3, len4, len5; - - len1 = get_le16(pb); - len2 = get_le16(pb); - len3 = get_le16(pb); - len4 = get_le16(pb); - len5 = get_le16(pb); - get_tag(s, "title" , 0, len1); - get_tag(s, "author" , 0, len2); - get_tag(s, "copyright", 0, len3); - get_tag(s, "comment" , 0, len4); - url_fskip(pb, len5); - } else if (!memcmp(&g, &stream_bitrate_guid, sizeof(GUID))) { - int stream_count = get_le16(pb); - int j; - -// av_log(s, AV_LOG_ERROR, "stream bitrate properties\n"); -// av_log(s, AV_LOG_ERROR, "streams %d\n", streams); - for(j = 0; j < stream_count; j++) { - int flags, bitrate, stream_id; - - flags= get_le16(pb); - bitrate= get_le32(pb); - stream_id= (flags & 0x7f); -// av_log(s, AV_LOG_ERROR, "flags: 0x%x stream id %d, bitrate %d\n", flags, stream_id, bitrate); - asf->stream_bitrates[stream_id]= bitrate; - } - } else if (!memcmp(&g, &extended_content_header, sizeof(GUID))) { - int desc_count, i; - - desc_count = get_le16(pb); - for(i=0;i\n", i, stream_num, name_len, value_type, value_len, name); - value_num= get_le16(pb);//we should use get_value() here but it does not work 2 is le16 here but le32 elsewhere - url_fskip(pb, value_len - 2); - - if(stream_num<128){ - if (!strcmp(name, "AspectRatioX")) dar[stream_num].num= value_num; - else if(!strcmp(name, "AspectRatioY")) dar[stream_num].den= value_num; - } - } - } else if (!memcmp(&g, &ext_stream_header, sizeof(GUID))) { - int ext_len, payload_ext_ct, stream_ct; - uint32_t ext_d, leak_rate, stream_num; - int64_t pos_ex_st; - pos_ex_st = url_ftell(pb); - - get_le64(pb); // starttime - get_le64(pb); // endtime - leak_rate = get_le32(pb); // leak-datarate - get_le32(pb); // bucket-datasize - get_le32(pb); // init-bucket-fullness - get_le32(pb); // alt-leak-datarate - get_le32(pb); // alt-bucket-datasize - get_le32(pb); // alt-init-bucket-fullness - get_le32(pb); // max-object-size - get_le32(pb); // flags (reliable,seekable,no_cleanpoints?,resend-live-cleanpoints, rest of bits reserved) - stream_num = get_le16(pb); // stream-num - get_le16(pb); // stream-language-id-index - get_le64(pb); // avg frametime in 100ns units - stream_ct = get_le16(pb); //stream-name-count - payload_ext_ct = get_le16(pb); //payload-extension-system-count - - if (stream_num < 128) - bitrate[stream_num] = leak_rate; - - for (i=0; i 0) { - v1 = get_byte(pb); - if ((q - tag) < sizeof(tag) - 1) - *q++ = v1; - len--; - } - *q = '\0'; - } -#endif - } else if (url_feof(pb)) { - return -1; - } else { - url_fseek(pb, gsize - 24, SEEK_CUR); - } - } - get_guid(pb, &g); - get_le64(pb); - get_byte(pb); - get_byte(pb); - if (url_feof(pb)) - return -1; - asf->data_offset = url_ftell(pb); - asf->packet_size_left = 0; - - - for(i=0; i<128; i++){ - int stream_num= asf->asfid2avid[i]; - if(stream_num>=0){ - AVStream *st = s->streams[stream_num]; - if (!st->codec->bit_rate) - st->codec->bit_rate = bitrate[i]; - if (dar[i].num > 0 && dar[i].den > 0) - av_reduce(&st->sample_aspect_ratio.num, - &st->sample_aspect_ratio.den, - dar[i].num, dar[i].den, INT_MAX); -//av_log(s, AV_LOG_ERROR, "dar %d:%d sar=%d:%d\n", dar[i].num, dar[i].den, st->sample_aspect_ratio.num, st->sample_aspect_ratio.den); - } - } - - return 0; -} - -#define DO_2BITS(bits, var, defval) \ - switch (bits & 3) \ - { \ - case 3: var = get_le32(pb); rsize += 4; break; \ - case 2: var = get_le16(pb); rsize += 2; break; \ - case 1: var = get_byte(pb); rsize++; break; \ - default: var = defval; break; \ - } - -int ff_asf_get_packet(AVFormatContext *s, ByteIOContext *pb) -{ - ASFContext *asf = s->priv_data; - uint32_t packet_length, padsize; - int rsize = 8; - int c, d, e, off; - - off= (url_ftell(pb) - s->data_offset) % asf->packet_size + 3; - - c=d=e=-1; - while(off-- > 0){ - c=d; d=e; - e= get_byte(pb); - if(c == 0x82 && !d && !e) - break; - } - - if (c != 0x82) { - if (!url_feof(pb)) - av_log(s, AV_LOG_ERROR, "ff asf bad header %x at:%"PRId64"\n", c, url_ftell(pb)); - } - if ((c & 0x8f) == 0x82) { - if (d || e) { - if (!url_feof(pb)) - av_log(s, AV_LOG_ERROR, "ff asf bad non zero\n"); - return -1; - } - c= get_byte(pb); - d= get_byte(pb); - rsize+=3; - }else{ - url_fseek(pb, -1, SEEK_CUR); //FIXME - } - - asf->packet_flags = c; - asf->packet_property = d; - - DO_2BITS(asf->packet_flags >> 5, packet_length, asf->packet_size); - DO_2BITS(asf->packet_flags >> 1, padsize, 0); // sequence ignored - DO_2BITS(asf->packet_flags >> 3, padsize, 0); // padding length - - //the following checks prevent overflows and infinite loops - if(packet_length >= (1U<<29)){ - av_log(s, AV_LOG_ERROR, "invalid packet_length %d at:%"PRId64"\n", packet_length, url_ftell(pb)); - return -1; - } - if(padsize >= packet_length){ - av_log(s, AV_LOG_ERROR, "invalid padsize %d at:%"PRId64"\n", padsize, url_ftell(pb)); - return -1; - } - - asf->packet_timestamp = get_le32(pb); - get_le16(pb); /* duration */ - // rsize has at least 11 bytes which have to be present - - if (asf->packet_flags & 0x01) { - asf->packet_segsizetype = get_byte(pb); rsize++; - asf->packet_segments = asf->packet_segsizetype & 0x3f; - } else { - asf->packet_segments = 1; - asf->packet_segsizetype = 0x80; - } - asf->packet_size_left = packet_length - padsize - rsize; - if (packet_length < asf->hdr.min_pktsize) - padsize += asf->hdr.min_pktsize - packet_length; - asf->packet_padsize = padsize; - dprintf(s, "packet: size=%d padsize=%d left=%d\n", asf->packet_size, asf->packet_padsize, asf->packet_size_left); - return 0; -} - -/** - * - * @return <0 if error - */ -static int asf_read_frame_header(AVFormatContext *s, ByteIOContext *pb){ - ASFContext *asf = s->priv_data; - int rsize = 1; - int num = get_byte(pb); - int64_t ts0, ts1; - - asf->packet_segments--; - asf->packet_key_frame = num >> 7; - asf->stream_index = asf->asfid2avid[num & 0x7f]; - // sequence should be ignored! - DO_2BITS(asf->packet_property >> 4, asf->packet_seq, 0); - DO_2BITS(asf->packet_property >> 2, asf->packet_frag_offset, 0); - DO_2BITS(asf->packet_property, asf->packet_replic_size, 0); -//printf("key:%d stream:%d seq:%d offset:%d replic_size:%d\n", asf->packet_key_frame, asf->stream_index, asf->packet_seq, //asf->packet_frag_offset, asf->packet_replic_size); - if (asf->packet_replic_size >= 8) { - asf->packet_obj_size = get_le32(pb); - if(asf->packet_obj_size >= (1<<24) || asf->packet_obj_size <= 0){ - av_log(s, AV_LOG_ERROR, "packet_obj_size invalid\n"); - return -1; - } - asf->packet_frag_timestamp = get_le32(pb); // timestamp - if(asf->packet_replic_size >= 8+38+4){ -// for(i=0; ipacket_replic_size-8; i++) -// av_log(s, AV_LOG_DEBUG, "%02X ",get_byte(pb)); -// av_log(s, AV_LOG_DEBUG, "\n"); - url_fskip(pb, 10); - ts0= get_le64(pb); - ts1= get_le64(pb); - url_fskip(pb, 12); - get_le32(pb); - url_fskip(pb, asf->packet_replic_size - 8 - 38 - 4); - if(ts0!= -1) asf->packet_frag_timestamp= ts0/10000; - else asf->packet_frag_timestamp= AV_NOPTS_VALUE; - }else - url_fskip(pb, asf->packet_replic_size - 8); - rsize += asf->packet_replic_size; // FIXME - check validity - } else if (asf->packet_replic_size==1){ - // multipacket - frag_offset is beginning timestamp - asf->packet_time_start = asf->packet_frag_offset; - asf->packet_frag_offset = 0; - asf->packet_frag_timestamp = asf->packet_timestamp; - - asf->packet_time_delta = get_byte(pb); - rsize++; - }else if(asf->packet_replic_size!=0){ - av_log(s, AV_LOG_ERROR, "unexpected packet_replic_size of %d\n", asf->packet_replic_size); - return -1; - } - if (asf->packet_flags & 0x01) { - DO_2BITS(asf->packet_segsizetype >> 6, asf->packet_frag_size, 0); // 0 is illegal - if(asf->packet_frag_size > asf->packet_size_left - rsize){ - av_log(s, AV_LOG_ERROR, "packet_frag_size is invalid\n"); - return -1; - } - //printf("Fragsize %d\n", asf->packet_frag_size); - } else { - asf->packet_frag_size = asf->packet_size_left - rsize; - //printf("Using rest %d %d %d\n", asf->packet_frag_size, asf->packet_size_left, rsize); - } - if (asf->packet_replic_size == 1) { - asf->packet_multi_size = asf->packet_frag_size; - if (asf->packet_multi_size > asf->packet_size_left) - return -1; - } - asf->packet_size_left -= rsize; - //printf("___objsize____ %d %d rs:%d\n", asf->packet_obj_size, asf->packet_frag_offset, rsize); - - return 0; -} - -int ff_asf_parse_packet(AVFormatContext *s, ByteIOContext *pb, AVPacket *pkt) -{ - ASFContext *asf = s->priv_data; - ASFStream *asf_st = 0; - for (;;) { - if(url_feof(pb)) - return AVERROR(EIO); - if (asf->packet_size_left < FRAME_HEADER_SIZE - || asf->packet_segments < 1) { - //asf->packet_size_left <= asf->packet_padsize) { - int ret = asf->packet_size_left + asf->packet_padsize; - //printf("PacketLeftSize:%d Pad:%d Pos:%"PRId64"\n", asf->packet_size_left, asf->packet_padsize, url_ftell(pb)); - assert(ret>=0); - /* fail safe */ - url_fskip(pb, ret); - - asf->packet_pos= url_ftell(pb); - if (asf->data_object_size != (uint64_t)-1 && - (asf->packet_pos - asf->data_object_offset >= asf->data_object_size)) - return AVERROR(EIO); /* Do not exceed the size of the data object */ - return 1; - } - if (asf->packet_time_start == 0) { - if(asf_read_frame_header(s, pb) < 0){ - asf->packet_segments= 0; - continue; - } - if (asf->stream_index < 0 - || s->streams[asf->stream_index]->discard >= AVDISCARD_ALL - || (!asf->packet_key_frame && s->streams[asf->stream_index]->discard >= AVDISCARD_NONKEY) - ) { - asf->packet_time_start = 0; - /* unhandled packet (should not happen) */ - url_fskip(pb, asf->packet_frag_size); - asf->packet_size_left -= asf->packet_frag_size; - if(asf->stream_index < 0) - av_log(s, AV_LOG_ERROR, "ff asf skip %d (unknown stream)\n", asf->packet_frag_size); - continue; - } - asf->asf_st = s->streams[asf->stream_index]->priv_data; - } - asf_st = asf->asf_st; - - if (asf->packet_replic_size == 1) { - // frag_offset is here used as the beginning timestamp - asf->packet_frag_timestamp = asf->packet_time_start; - asf->packet_time_start += asf->packet_time_delta; - asf->packet_obj_size = asf->packet_frag_size = get_byte(pb); - asf->packet_size_left--; - asf->packet_multi_size--; - if (asf->packet_multi_size < asf->packet_obj_size) - { - asf->packet_time_start = 0; - url_fskip(pb, asf->packet_multi_size); - asf->packet_size_left -= asf->packet_multi_size; - continue; - } - asf->packet_multi_size -= asf->packet_obj_size; - //printf("COMPRESS size %d %d %d ms:%d\n", asf->packet_obj_size, asf->packet_frag_timestamp, asf->packet_size_left, asf->packet_multi_size); - } - if( /*asf->packet_frag_size == asf->packet_obj_size*/ - asf_st->frag_offset + asf->packet_frag_size <= asf_st->pkt.size - && asf_st->frag_offset + asf->packet_frag_size > asf->packet_obj_size){ - av_log(s, AV_LOG_INFO, "ignoring invalid packet_obj_size (%d %d %d %d)\n", - asf_st->frag_offset, asf->packet_frag_size, - asf->packet_obj_size, asf_st->pkt.size); - asf->packet_obj_size= asf_st->pkt.size; - } - - if ( asf_st->pkt.size != asf->packet_obj_size - || asf_st->frag_offset + asf->packet_frag_size > asf_st->pkt.size) { //FIXME is this condition sufficient? - if(asf_st->pkt.data){ - av_log(s, AV_LOG_INFO, "freeing incomplete packet size %d, new %d\n", asf_st->pkt.size, asf->packet_obj_size); - asf_st->frag_offset = 0; - av_free_packet(&asf_st->pkt); - } - /* new packet */ - av_new_packet(&asf_st->pkt, asf->packet_obj_size); - asf_st->seq = asf->packet_seq; - asf_st->pkt.dts = asf->packet_frag_timestamp; - asf_st->pkt.stream_index = asf->stream_index; - asf_st->pkt.pos = - asf_st->packet_pos= asf->packet_pos; -//printf("new packet: stream:%d key:%d packet_key:%d audio:%d size:%d\n", -//asf->stream_index, asf->packet_key_frame, asf_st->pkt.flags & PKT_FLAG_KEY, -//s->streams[asf->stream_index]->codec->codec_type == CODEC_TYPE_AUDIO, asf->packet_obj_size); - if (s->streams[asf->stream_index]->codec->codec_type == CODEC_TYPE_AUDIO) - asf->packet_key_frame = 1; - if (asf->packet_key_frame) - asf_st->pkt.flags |= PKT_FLAG_KEY; - } - - /* read data */ - //printf("READ PACKET s:%d os:%d o:%d,%d l:%d DATA:%p\n", - // asf->packet_size, asf_st->pkt.size, asf->packet_frag_offset, - // asf_st->frag_offset, asf->packet_frag_size, asf_st->pkt.data); - asf->packet_size_left -= asf->packet_frag_size; - if (asf->packet_size_left < 0) - continue; - - if( asf->packet_frag_offset >= asf_st->pkt.size - || asf->packet_frag_size > asf_st->pkt.size - asf->packet_frag_offset){ - av_log(s, AV_LOG_ERROR, "packet fragment position invalid %u,%u not in %u\n", - asf->packet_frag_offset, asf->packet_frag_size, asf_st->pkt.size); - continue; - } - - get_buffer(pb, asf_st->pkt.data + asf->packet_frag_offset, - asf->packet_frag_size); - if (s->key && s->keylen == 20) - ff_asfcrypt_dec(s->key, asf_st->pkt.data + asf->packet_frag_offset, - asf->packet_frag_size); - asf_st->frag_offset += asf->packet_frag_size; - /* test if whole packet is read */ - if (asf_st->frag_offset == asf_st->pkt.size) { - //workaround for macroshit radio DVR-MS files - if( s->streams[asf->stream_index]->codec->codec_id == CODEC_ID_MPEG2VIDEO - && asf_st->pkt.size > 100){ - int i; - for(i=0; ipkt.size && !asf_st->pkt.data[i]; i++); - if(i == asf_st->pkt.size){ - av_log(s, AV_LOG_DEBUG, "discarding ms fart\n"); - asf_st->frag_offset = 0; - av_free_packet(&asf_st->pkt); - continue; - } - } - - /* return packet */ - if (asf_st->ds_span > 1) { - if(asf_st->pkt.size != asf_st->ds_packet_size * asf_st->ds_span){ - av_log(s, AV_LOG_ERROR, "pkt.size != ds_packet_size * ds_span (%d %d %d)\n", asf_st->pkt.size, asf_st->ds_packet_size, asf_st->ds_span); - }else{ - /* packet descrambling */ - uint8_t *newdata = av_malloc(asf_st->pkt.size); - if (newdata) { - int offset = 0; - while (offset < asf_st->pkt.size) { - int off = offset / asf_st->ds_chunk_size; - int row = off / asf_st->ds_span; - int col = off % asf_st->ds_span; - int idx = row + col * asf_st->ds_packet_size / asf_st->ds_chunk_size; - //printf("off:%d row:%d col:%d idx:%d\n", off, row, col, idx); - - assert(offset + asf_st->ds_chunk_size <= asf_st->pkt.size); - assert(idx+1 <= asf_st->pkt.size / asf_st->ds_chunk_size); - memcpy(newdata + offset, - asf_st->pkt.data + idx * asf_st->ds_chunk_size, - asf_st->ds_chunk_size); - offset += asf_st->ds_chunk_size; - } - av_free(asf_st->pkt.data); - asf_st->pkt.data = newdata; - } - } - } - asf_st->frag_offset = 0; - *pkt= asf_st->pkt; - //printf("packet %d %d\n", asf_st->pkt.size, asf->packet_frag_size); - asf_st->pkt.size = 0; - asf_st->pkt.data = 0; - break; // packet completed - } - } - return 0; -} - -static int asf_read_packet(AVFormatContext *s, AVPacket *pkt) -{ - ASFContext *asf = s->priv_data; - - for (;;) { - int ret; - - /* parse cached packets, if any */ - if ((ret = ff_asf_parse_packet(s, s->pb, pkt)) <= 0) - return ret; - if ((ret = ff_asf_get_packet(s, s->pb)) < 0) - assert(asf->packet_size_left < FRAME_HEADER_SIZE || asf->packet_segments < 1); - asf->packet_time_start = 0; - } - - return 0; -} - -// Added to support seeking after packets have been read -// If information is not reset, read_packet fails due to -// leftover information from previous reads -static void asf_reset_header(AVFormatContext *s) -{ - ASFContext *asf = s->priv_data; - ASFStream *asf_st; - int i; - - asf->packet_nb_frames = 0; - asf->packet_size_left = 0; - asf->packet_segments = 0; - asf->packet_flags = 0; - asf->packet_property = 0; - asf->packet_timestamp = 0; - asf->packet_segsizetype = 0; - asf->packet_segments = 0; - asf->packet_seq = 0; - asf->packet_replic_size = 0; - asf->packet_key_frame = 0; - asf->packet_padsize = 0; - asf->packet_frag_offset = 0; - asf->packet_frag_size = 0; - asf->packet_frag_timestamp = 0; - asf->packet_multi_size = 0; - asf->packet_obj_size = 0; - asf->packet_time_delta = 0; - asf->packet_time_start = 0; - - for(i=0; inb_streams; i++){ - asf_st= s->streams[i]->priv_data; - av_free_packet(&asf_st->pkt); - asf_st->frag_offset=0; - asf_st->seq=0; - } - asf->asf_st= NULL; -} - -static int asf_read_close(AVFormatContext *s) -{ - int i; - - asf_reset_header(s); - for(i=0;inb_streams;i++) { - AVStream *st = s->streams[i]; - av_free(st->codec->palctrl); - } - return 0; -} - -static int64_t asf_read_pts(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit) -{ - ASFContext *asf = s->priv_data; - AVPacket pkt1, *pkt = &pkt1; - ASFStream *asf_st; - int64_t pts; - int64_t pos= *ppos; - int i; - int64_t start_pos[s->nb_streams]; - - for(i=0; inb_streams; i++){ - start_pos[i]= pos; - } - - pos= (pos+asf->packet_size-1-s->data_offset)/asf->packet_size*asf->packet_size+ s->data_offset; - *ppos= pos; - url_fseek(s->pb, pos, SEEK_SET); - -//printf("asf_read_pts\n"); - asf_reset_header(s); - for(;;){ - if (av_read_frame(s, pkt) < 0){ - av_log(s, AV_LOG_INFO, "asf_read_pts failed\n"); - return AV_NOPTS_VALUE; - } - - pts= pkt->pts; - - av_free_packet(pkt); - if(pkt->flags&PKT_FLAG_KEY){ - i= pkt->stream_index; - - asf_st= s->streams[i]->priv_data; - -// assert((asf_st->packet_pos - s->data_offset) % asf->packet_size == 0); - pos= asf_st->packet_pos; - - av_add_index_entry(s->streams[i], pos, pts, pkt->size, pos - start_pos[i] + 1, AVINDEX_KEYFRAME); - start_pos[i]= asf_st->packet_pos + 1; - - if(pkt->stream_index == stream_index) - break; - } - } - - *ppos= pos; -//printf("found keyframe at %"PRId64" stream %d stamp:%"PRId64"\n", *ppos, stream_index, pts); - - return pts; -} - -static void asf_build_simple_index(AVFormatContext *s, int stream_index) -{ - GUID g; - ASFContext *asf = s->priv_data; - int64_t gsize, itime; - int64_t pos, current_pos, index_pts; - int i; - int pct,ict; - - current_pos = url_ftell(s->pb); - - url_fseek(s->pb, asf->data_object_offset + asf->data_object_size, SEEK_SET); - get_guid(s->pb, &g); - if (!memcmp(&g, &index_guid, sizeof(GUID))) { - gsize = get_le64(s->pb); - get_guid(s->pb, &g); - itime=get_le64(s->pb); - pct=get_le32(s->pb); - ict=get_le32(s->pb); - av_log(s, AV_LOG_DEBUG, "itime:0x%"PRIx64", pct:%d, ict:%d\n",itime,pct,ict); - - for (i=0;ipb); - int pktct =get_le16(s->pb); - av_log(s, AV_LOG_DEBUG, "pktnum:%d, pktct:%d\n", pktnum, pktct); - - pos=s->data_offset + asf->packet_size*(int64_t)pktnum; - index_pts=av_rescale(itime, i, 10000); - - av_add_index_entry(s->streams[stream_index], pos, index_pts, asf->packet_size, 0, AVINDEX_KEYFRAME); - } - asf->index_read= 1; - } - url_fseek(s->pb, current_pos, SEEK_SET); -} - -static int asf_read_seek(AVFormatContext *s, int stream_index, int64_t pts, int flags) -{ - ASFContext *asf = s->priv_data; - AVStream *st = s->streams[stream_index]; - int64_t pos; - int index; - - if (asf->packet_size <= 0) - return -1; - - /* Try using the protocol's read_seek if available */ - if(s->pb) { - int ret = av_url_read_fseek(s->pb, stream_index, pts, flags); - if(ret >= 0) - asf_reset_header(s); - if (ret != AVERROR(ENOSYS)) - return ret; - } - - if (!asf->index_read) - asf_build_simple_index(s, stream_index); - - if(!(asf->index_read && st->index_entries)){ - if(av_seek_frame_binary(s, stream_index, pts, flags)<0) - return -1; - }else{ - index= av_index_search_timestamp(st, pts, flags); - if(index<0) - return -1; - - /* find the position */ - pos = st->index_entries[index].pos; - pts = st->index_entries[index].timestamp; - - // various attempts to find key frame have failed so far - // asf_reset_header(s); - // url_fseek(s->pb, pos, SEEK_SET); - // key_pos = pos; - // for(i=0;i<16;i++){ - // pos = url_ftell(s->pb); - // if (av_read_frame(s, &pkt) < 0){ - // av_log(s, AV_LOG_INFO, "seek failed\n"); - // return -1; - // } - // asf_st = s->streams[stream_index]->priv_data; - // pos += st->parser->frame_offset; - // - // if (pkt.size > b) { - // b = pkt.size; - // key_pos = pos; - // } - // - // av_free_packet(&pkt); - // } - - /* do the seek */ - av_log(s, AV_LOG_DEBUG, "SEEKTO: %"PRId64"\n", pos); - url_fseek(s->pb, pos, SEEK_SET); - } - asf_reset_header(s); - return 0; -} - -AVInputFormat asf_demuxer = { - "asf", - NULL_IF_CONFIG_SMALL("ASF format"), - sizeof(ASFContext), - asf_probe, - asf_read_header, - asf_read_packet, - asf_read_close, - asf_read_seek, - asf_read_pts, -}; diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c new file mode 100644 index 0000000000..bcaf2a1c16 --- /dev/null +++ b/libavformat/asfdec.c @@ -0,0 +1,1090 @@ +/* + * ASF compatible demuxer + * Copyright (c) 2000, 2001 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/common.h" +#include "libavcodec/mpegaudio.h" +#include "avformat.h" +#include "riff.h" +#include "asf.h" +#include "asfcrypt.h" + +void ff_mms_set_stream_selection(URLContext *h, AVFormatContext *format); + +#undef NDEBUG +#include + +#define FRAME_HEADER_SIZE 17 +// Fix Me! FRAME_HEADER_SIZE may be different. + +static const GUID index_guid = { + 0x90, 0x08, 0x00, 0x33, 0xb1, 0xe5, 0xcf, 0x11, 0x89, 0xf4, 0x00, 0xa0, 0xc9, 0x03, 0x49, 0xcb +}; + +static const GUID stream_bitrate_guid = { /* (http://get.to/sdp) */ + 0xce, 0x75, 0xf8, 0x7b, 0x8d, 0x46, 0xd1, 0x11, 0x8d, 0x82, 0x00, 0x60, 0x97, 0xc9, 0xa2, 0xb2 +}; +/**********************************/ +/* decoding */ + +//#define DEBUG + +#ifdef DEBUG +#define PRINT_IF_GUID(g,cmp) \ +if (!memcmp(g, &cmp, sizeof(GUID))) \ + dprintf(NULL, "(GUID: %s) ", #cmp) + +static void print_guid(const GUID *g) +{ + int i; + PRINT_IF_GUID(g, asf_header); + else PRINT_IF_GUID(g, file_header); + else PRINT_IF_GUID(g, stream_header); + else PRINT_IF_GUID(g, audio_stream); + else PRINT_IF_GUID(g, audio_conceal_none); + else PRINT_IF_GUID(g, video_stream); + else PRINT_IF_GUID(g, video_conceal_none); + else PRINT_IF_GUID(g, command_stream); + else PRINT_IF_GUID(g, comment_header); + else PRINT_IF_GUID(g, codec_comment_header); + else PRINT_IF_GUID(g, codec_comment1_header); + else PRINT_IF_GUID(g, data_header); + else PRINT_IF_GUID(g, index_guid); + else PRINT_IF_GUID(g, head1_guid); + else PRINT_IF_GUID(g, head2_guid); + else PRINT_IF_GUID(g, my_guid); + else PRINT_IF_GUID(g, ext_stream_header); + else PRINT_IF_GUID(g, extended_content_header); + else PRINT_IF_GUID(g, ext_stream_embed_stream_header); + else PRINT_IF_GUID(g, ext_stream_audio_stream); + else PRINT_IF_GUID(g, metadata_header); + else PRINT_IF_GUID(g, stream_bitrate_guid); + else + dprintf(NULL, "(GUID: unknown) "); + for(i=0;i<16;i++) + dprintf(NULL, " 0x%02x,", (*g)[i]); + dprintf(NULL, "}\n"); +} +#undef PRINT_IF_GUID +#else +#define print_guid(g) +#endif + +static void get_guid(ByteIOContext *s, GUID *g) +{ + assert(sizeof(*g) == 16); + get_buffer(s, *g, sizeof(*g)); +} + +#if 0 +static void get_str16(ByteIOContext *pb, char *buf, int buf_size) +{ + int len, c; + char *q; + + len = get_le16(pb); + q = buf; + while (len > 0) { + c = get_le16(pb); + if ((q - buf) < buf_size - 1) + *q++ = c; + len--; + } + *q = '\0'; +} +#endif + +static void get_str16_nolen(ByteIOContext *pb, int len, char *buf, int buf_size) +{ + char* q = buf; + len /= 2; + while (len--) { + uint8_t tmp; + PUT_UTF8(get_le16(pb), tmp, if (q - buf < buf_size - 1) *q++ = tmp;) + } + *q = '\0'; +} + +static int asf_probe(AVProbeData *pd) +{ + /* check file header */ + if (!memcmp(pd->buf, &asf_header, sizeof(GUID))) + return AVPROBE_SCORE_MAX; + else + return 0; +} + +static int get_value(ByteIOContext *pb, int type){ + switch(type){ + case 2: return get_le32(pb); + case 3: return get_le32(pb); + case 4: return get_le64(pb); + case 5: return get_le16(pb); + default:return INT_MIN; + } +} + +static void get_tag(AVFormatContext *s, const char *key, int type, int len) +{ + char value[1024]; + if (type <= 1) { // unicode or byte + get_str16_nolen(s->pb, len, value, sizeof(value)); + } else if (type <= 5) { // boolean or DWORD or QWORD or WORD + uint64_t num = get_value(s->pb, type); + snprintf(value, sizeof(value), "%"PRIu64, num); + } else { + url_fskip(s->pb, len); + return; + } + if (strncmp(key, "WM/", 3)) + key += 3; + av_metadata_set(&s->metadata, key, value); +} + +static int asf_read_header(AVFormatContext *s, AVFormatParameters *ap) +{ + ASFContext *asf = s->priv_data; + GUID g; + ByteIOContext *pb = s->pb; + AVStream *st; + ASFStream *asf_st; + int size, i; + int64_t gsize; + AVRational dar[128]; + uint32_t bitrate[128]; + + memset(dar, 0, sizeof(dar)); + memset(bitrate, 0, sizeof(bitrate)); + + get_guid(pb, &g); + if (memcmp(&g, &asf_header, sizeof(GUID))) + return -1; + get_le64(pb); + get_le32(pb); + get_byte(pb); + get_byte(pb); + memset(&asf->asfid2avid, -1, sizeof(asf->asfid2avid)); + for(;;) { + get_guid(pb, &g); + gsize = get_le64(pb); + dprintf(s, "%08"PRIx64": ", url_ftell(pb) - 24); + print_guid(&g); + dprintf(s, " size=0x%"PRIx64"\n", gsize); + if (!memcmp(&g, &data_header, sizeof(GUID))) { + asf->data_object_offset = url_ftell(pb); + // if not streaming, gsize is not unlimited (how?), and there is enough space in the file.. + if (!(asf->hdr.flags & 0x01) && gsize >= 100) { + asf->data_object_size = gsize - 24; + } else { + asf->data_object_size = (uint64_t)-1; + } + break; + } + if (gsize < 24) + return -1; + if (!memcmp(&g, &file_header, sizeof(GUID))) { + get_guid(pb, &asf->hdr.guid); + asf->hdr.file_size = get_le64(pb); + asf->hdr.create_time = get_le64(pb); + asf->nb_packets = get_le64(pb); + asf->hdr.play_time = get_le64(pb); + asf->hdr.send_time = get_le64(pb); + asf->hdr.preroll = get_le32(pb); + asf->hdr.ignore = get_le32(pb); + asf->hdr.flags = get_le32(pb); + asf->hdr.min_pktsize = get_le32(pb); + asf->hdr.max_pktsize = get_le32(pb); + asf->hdr.max_bitrate = get_le32(pb); + asf->packet_size = asf->hdr.max_pktsize; + } else if (!memcmp(&g, &stream_header, sizeof(GUID))) { + enum CodecType type; + int type_specific_size, sizeX; + uint64_t total_size; + unsigned int tag1; + int64_t pos1, pos2, start_time; + int test_for_ext_stream_audio, is_dvr_ms_audio=0; + + pos1 = url_ftell(pb); + + st = av_new_stream(s, 0); + if (!st) + return AVERROR(ENOMEM); + av_set_pts_info(st, 32, 1, 1000); /* 32 bit pts in ms */ + asf_st = av_mallocz(sizeof(ASFStream)); + if (!asf_st) + return AVERROR(ENOMEM); + st->priv_data = asf_st; + start_time = asf->hdr.preroll; + + if(!(asf->hdr.flags & 0x01)) { // if we aren't streaming... + st->duration = asf->hdr.send_time / + (10000000 / 1000) - start_time; + } + get_guid(pb, &g); + + test_for_ext_stream_audio = 0; + if (!memcmp(&g, &audio_stream, sizeof(GUID))) { + type = CODEC_TYPE_AUDIO; + } else if (!memcmp(&g, &video_stream, sizeof(GUID))) { + type = CODEC_TYPE_VIDEO; + } else if (!memcmp(&g, &command_stream, sizeof(GUID))) { + type = CODEC_TYPE_DATA; + } else if (!memcmp(&g, &ext_stream_embed_stream_header, sizeof(GUID))) { + test_for_ext_stream_audio = 1; + type = CODEC_TYPE_UNKNOWN; + } else { + return -1; + } + get_guid(pb, &g); + total_size = get_le64(pb); + type_specific_size = get_le32(pb); + get_le32(pb); + st->id = get_le16(pb) & 0x7f; /* stream id */ + // mapping of asf ID to AV stream ID; + asf->asfid2avid[st->id] = s->nb_streams - 1; + + get_le32(pb); + + if (test_for_ext_stream_audio) { + get_guid(pb, &g); + if (!memcmp(&g, &ext_stream_audio_stream, sizeof(GUID))) { + type = CODEC_TYPE_AUDIO; + is_dvr_ms_audio=1; + get_guid(pb, &g); + get_le32(pb); + get_le32(pb); + get_le32(pb); + get_guid(pb, &g); + get_le32(pb); + } + } + + st->codec->codec_type = type; + if (type == CODEC_TYPE_AUDIO) { + get_wav_header(pb, st->codec, type_specific_size); + if (is_dvr_ms_audio) { + // codec_id and codec_tag are unreliable in dvr_ms + // files. Set them later by probing stream. + st->codec->codec_id = CODEC_ID_PROBE; + st->codec->codec_tag = 0; + } + if (st->codec->codec_id == CODEC_ID_AAC) { + st->need_parsing = AVSTREAM_PARSE_NONE; + } else { + st->need_parsing = AVSTREAM_PARSE_FULL; + } + /* We have to init the frame size at some point .... */ + pos2 = url_ftell(pb); + if (gsize >= (pos2 + 8 - pos1 + 24)) { + asf_st->ds_span = get_byte(pb); + asf_st->ds_packet_size = get_le16(pb); + asf_st->ds_chunk_size = get_le16(pb); + get_le16(pb); //ds_data_size + get_byte(pb); //ds_silence_data + } + //printf("Descrambling: ps:%d cs:%d ds:%d s:%d sd:%d\n", + // asf_st->ds_packet_size, asf_st->ds_chunk_size, + // asf_st->ds_data_size, asf_st->ds_span, asf_st->ds_silence_data); + if (asf_st->ds_span > 1) { + if (!asf_st->ds_chunk_size + || (asf_st->ds_packet_size/asf_st->ds_chunk_size <= 1) + || asf_st->ds_packet_size % asf_st->ds_chunk_size) + asf_st->ds_span = 0; // disable descrambling + } + switch (st->codec->codec_id) { + case CODEC_ID_MP3: + st->codec->frame_size = MPA_FRAME_SIZE; + break; + case CODEC_ID_PCM_S16LE: + case CODEC_ID_PCM_S16BE: + case CODEC_ID_PCM_U16LE: + case CODEC_ID_PCM_U16BE: + case CODEC_ID_PCM_S8: + case CODEC_ID_PCM_U8: + case CODEC_ID_PCM_ALAW: + case CODEC_ID_PCM_MULAW: + st->codec->frame_size = 1; + break; + default: + /* This is probably wrong, but it prevents a crash later */ + st->codec->frame_size = 1; + break; + } + } else if (type == CODEC_TYPE_VIDEO) { + get_le32(pb); + get_le32(pb); + get_byte(pb); + size = get_le16(pb); /* size */ + sizeX= get_le32(pb); /* size */ + st->codec->width = get_le32(pb); + st->codec->height = get_le32(pb); + /* not available for asf */ + get_le16(pb); /* panes */ + st->codec->bits_per_coded_sample = get_le16(pb); /* depth */ + tag1 = get_le32(pb); + url_fskip(pb, 20); +// av_log(s, AV_LOG_DEBUG, "size:%d tsize:%d sizeX:%d\n", size, total_size, sizeX); + size= sizeX; + if (size > 40) { + st->codec->extradata_size = size - 40; + st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); + get_buffer(pb, st->codec->extradata, st->codec->extradata_size); + } + + /* Extract palette from extradata if bpp <= 8 */ + /* This code assumes that extradata contains only palette */ + /* This is true for all paletted codecs implemented in ffmpeg */ + if (st->codec->extradata_size && (st->codec->bits_per_coded_sample <= 8)) { + st->codec->palctrl = av_mallocz(sizeof(AVPaletteControl)); +#ifdef WORDS_BIGENDIAN + for (i = 0; i < FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)/4; i++) + st->codec->palctrl->palette[i] = bswap_32(((uint32_t*)st->codec->extradata)[i]); +#else + memcpy(st->codec->palctrl->palette, st->codec->extradata, + FFMIN(st->codec->extradata_size, AVPALETTE_SIZE)); +#endif + st->codec->palctrl->palette_changed = 1; + } + + st->codec->codec_tag = tag1; + st->codec->codec_id = codec_get_id(codec_bmp_tags, tag1); + if(tag1 == MKTAG('D', 'V', 'R', ' ')) + st->need_parsing = AVSTREAM_PARSE_FULL; + } + pos2 = url_ftell(pb); + url_fskip(pb, gsize - (pos2 - pos1 + 24)); + } else if (!memcmp(&g, &comment_header, sizeof(GUID))) { + int len1, len2, len3, len4, len5; + + len1 = get_le16(pb); + len2 = get_le16(pb); + len3 = get_le16(pb); + len4 = get_le16(pb); + len5 = get_le16(pb); + get_tag(s, "title" , 0, len1); + get_tag(s, "author" , 0, len2); + get_tag(s, "copyright", 0, len3); + get_tag(s, "comment" , 0, len4); + url_fskip(pb, len5); + } else if (!memcmp(&g, &stream_bitrate_guid, sizeof(GUID))) { + int stream_count = get_le16(pb); + int j; + +// av_log(s, AV_LOG_ERROR, "stream bitrate properties\n"); +// av_log(s, AV_LOG_ERROR, "streams %d\n", streams); + for(j = 0; j < stream_count; j++) { + int flags, bitrate, stream_id; + + flags= get_le16(pb); + bitrate= get_le32(pb); + stream_id= (flags & 0x7f); +// av_log(s, AV_LOG_ERROR, "flags: 0x%x stream id %d, bitrate %d\n", flags, stream_id, bitrate); + asf->stream_bitrates[stream_id]= bitrate; + } + } else if (!memcmp(&g, &extended_content_header, sizeof(GUID))) { + int desc_count, i; + + desc_count = get_le16(pb); + for(i=0;i\n", i, stream_num, name_len, value_type, value_len, name); + value_num= get_le16(pb);//we should use get_value() here but it does not work 2 is le16 here but le32 elsewhere + url_fskip(pb, value_len - 2); + + if(stream_num<128){ + if (!strcmp(name, "AspectRatioX")) dar[stream_num].num= value_num; + else if(!strcmp(name, "AspectRatioY")) dar[stream_num].den= value_num; + } + } + } else if (!memcmp(&g, &ext_stream_header, sizeof(GUID))) { + int ext_len, payload_ext_ct, stream_ct; + uint32_t ext_d, leak_rate, stream_num; + int64_t pos_ex_st; + pos_ex_st = url_ftell(pb); + + get_le64(pb); // starttime + get_le64(pb); // endtime + leak_rate = get_le32(pb); // leak-datarate + get_le32(pb); // bucket-datasize + get_le32(pb); // init-bucket-fullness + get_le32(pb); // alt-leak-datarate + get_le32(pb); // alt-bucket-datasize + get_le32(pb); // alt-init-bucket-fullness + get_le32(pb); // max-object-size + get_le32(pb); // flags (reliable,seekable,no_cleanpoints?,resend-live-cleanpoints, rest of bits reserved) + stream_num = get_le16(pb); // stream-num + get_le16(pb); // stream-language-id-index + get_le64(pb); // avg frametime in 100ns units + stream_ct = get_le16(pb); //stream-name-count + payload_ext_ct = get_le16(pb); //payload-extension-system-count + + if (stream_num < 128) + bitrate[stream_num] = leak_rate; + + for (i=0; i 0) { + v1 = get_byte(pb); + if ((q - tag) < sizeof(tag) - 1) + *q++ = v1; + len--; + } + *q = '\0'; + } +#endif + } else if (url_feof(pb)) { + return -1; + } else { + url_fseek(pb, gsize - 24, SEEK_CUR); + } + } + get_guid(pb, &g); + get_le64(pb); + get_byte(pb); + get_byte(pb); + if (url_feof(pb)) + return -1; + asf->data_offset = url_ftell(pb); + asf->packet_size_left = 0; + + + for(i=0; i<128; i++){ + int stream_num= asf->asfid2avid[i]; + if(stream_num>=0){ + AVStream *st = s->streams[stream_num]; + if (!st->codec->bit_rate) + st->codec->bit_rate = bitrate[i]; + if (dar[i].num > 0 && dar[i].den > 0) + av_reduce(&st->sample_aspect_ratio.num, + &st->sample_aspect_ratio.den, + dar[i].num, dar[i].den, INT_MAX); +//av_log(s, AV_LOG_ERROR, "dar %d:%d sar=%d:%d\n", dar[i].num, dar[i].den, st->sample_aspect_ratio.num, st->sample_aspect_ratio.den); + } + } + + return 0; +} + +#define DO_2BITS(bits, var, defval) \ + switch (bits & 3) \ + { \ + case 3: var = get_le32(pb); rsize += 4; break; \ + case 2: var = get_le16(pb); rsize += 2; break; \ + case 1: var = get_byte(pb); rsize++; break; \ + default: var = defval; break; \ + } + +int ff_asf_get_packet(AVFormatContext *s, ByteIOContext *pb) +{ + ASFContext *asf = s->priv_data; + uint32_t packet_length, padsize; + int rsize = 8; + int c, d, e, off; + + off= (url_ftell(pb) - s->data_offset) % asf->packet_size + 3; + + c=d=e=-1; + while(off-- > 0){ + c=d; d=e; + e= get_byte(pb); + if(c == 0x82 && !d && !e) + break; + } + + if (c != 0x82) { + if (!url_feof(pb)) + av_log(s, AV_LOG_ERROR, "ff asf bad header %x at:%"PRId64"\n", c, url_ftell(pb)); + } + if ((c & 0x8f) == 0x82) { + if (d || e) { + if (!url_feof(pb)) + av_log(s, AV_LOG_ERROR, "ff asf bad non zero\n"); + return -1; + } + c= get_byte(pb); + d= get_byte(pb); + rsize+=3; + }else{ + url_fseek(pb, -1, SEEK_CUR); //FIXME + } + + asf->packet_flags = c; + asf->packet_property = d; + + DO_2BITS(asf->packet_flags >> 5, packet_length, asf->packet_size); + DO_2BITS(asf->packet_flags >> 1, padsize, 0); // sequence ignored + DO_2BITS(asf->packet_flags >> 3, padsize, 0); // padding length + + //the following checks prevent overflows and infinite loops + if(packet_length >= (1U<<29)){ + av_log(s, AV_LOG_ERROR, "invalid packet_length %d at:%"PRId64"\n", packet_length, url_ftell(pb)); + return -1; + } + if(padsize >= packet_length){ + av_log(s, AV_LOG_ERROR, "invalid padsize %d at:%"PRId64"\n", padsize, url_ftell(pb)); + return -1; + } + + asf->packet_timestamp = get_le32(pb); + get_le16(pb); /* duration */ + // rsize has at least 11 bytes which have to be present + + if (asf->packet_flags & 0x01) { + asf->packet_segsizetype = get_byte(pb); rsize++; + asf->packet_segments = asf->packet_segsizetype & 0x3f; + } else { + asf->packet_segments = 1; + asf->packet_segsizetype = 0x80; + } + asf->packet_size_left = packet_length - padsize - rsize; + if (packet_length < asf->hdr.min_pktsize) + padsize += asf->hdr.min_pktsize - packet_length; + asf->packet_padsize = padsize; + dprintf(s, "packet: size=%d padsize=%d left=%d\n", asf->packet_size, asf->packet_padsize, asf->packet_size_left); + return 0; +} + +/** + * + * @return <0 if error + */ +static int asf_read_frame_header(AVFormatContext *s, ByteIOContext *pb){ + ASFContext *asf = s->priv_data; + int rsize = 1; + int num = get_byte(pb); + int64_t ts0, ts1; + + asf->packet_segments--; + asf->packet_key_frame = num >> 7; + asf->stream_index = asf->asfid2avid[num & 0x7f]; + // sequence should be ignored! + DO_2BITS(asf->packet_property >> 4, asf->packet_seq, 0); + DO_2BITS(asf->packet_property >> 2, asf->packet_frag_offset, 0); + DO_2BITS(asf->packet_property, asf->packet_replic_size, 0); +//printf("key:%d stream:%d seq:%d offset:%d replic_size:%d\n", asf->packet_key_frame, asf->stream_index, asf->packet_seq, //asf->packet_frag_offset, asf->packet_replic_size); + if (asf->packet_replic_size >= 8) { + asf->packet_obj_size = get_le32(pb); + if(asf->packet_obj_size >= (1<<24) || asf->packet_obj_size <= 0){ + av_log(s, AV_LOG_ERROR, "packet_obj_size invalid\n"); + return -1; + } + asf->packet_frag_timestamp = get_le32(pb); // timestamp + if(asf->packet_replic_size >= 8+38+4){ +// for(i=0; ipacket_replic_size-8; i++) +// av_log(s, AV_LOG_DEBUG, "%02X ",get_byte(pb)); +// av_log(s, AV_LOG_DEBUG, "\n"); + url_fskip(pb, 10); + ts0= get_le64(pb); + ts1= get_le64(pb); + url_fskip(pb, 12); + get_le32(pb); + url_fskip(pb, asf->packet_replic_size - 8 - 38 - 4); + if(ts0!= -1) asf->packet_frag_timestamp= ts0/10000; + else asf->packet_frag_timestamp= AV_NOPTS_VALUE; + }else + url_fskip(pb, asf->packet_replic_size - 8); + rsize += asf->packet_replic_size; // FIXME - check validity + } else if (asf->packet_replic_size==1){ + // multipacket - frag_offset is beginning timestamp + asf->packet_time_start = asf->packet_frag_offset; + asf->packet_frag_offset = 0; + asf->packet_frag_timestamp = asf->packet_timestamp; + + asf->packet_time_delta = get_byte(pb); + rsize++; + }else if(asf->packet_replic_size!=0){ + av_log(s, AV_LOG_ERROR, "unexpected packet_replic_size of %d\n", asf->packet_replic_size); + return -1; + } + if (asf->packet_flags & 0x01) { + DO_2BITS(asf->packet_segsizetype >> 6, asf->packet_frag_size, 0); // 0 is illegal + if(asf->packet_frag_size > asf->packet_size_left - rsize){ + av_log(s, AV_LOG_ERROR, "packet_frag_size is invalid\n"); + return -1; + } + //printf("Fragsize %d\n", asf->packet_frag_size); + } else { + asf->packet_frag_size = asf->packet_size_left - rsize; + //printf("Using rest %d %d %d\n", asf->packet_frag_size, asf->packet_size_left, rsize); + } + if (asf->packet_replic_size == 1) { + asf->packet_multi_size = asf->packet_frag_size; + if (asf->packet_multi_size > asf->packet_size_left) + return -1; + } + asf->packet_size_left -= rsize; + //printf("___objsize____ %d %d rs:%d\n", asf->packet_obj_size, asf->packet_frag_offset, rsize); + + return 0; +} + +int ff_asf_parse_packet(AVFormatContext *s, ByteIOContext *pb, AVPacket *pkt) +{ + ASFContext *asf = s->priv_data; + ASFStream *asf_st = 0; + for (;;) { + if(url_feof(pb)) + return AVERROR(EIO); + if (asf->packet_size_left < FRAME_HEADER_SIZE + || asf->packet_segments < 1) { + //asf->packet_size_left <= asf->packet_padsize) { + int ret = asf->packet_size_left + asf->packet_padsize; + //printf("PacketLeftSize:%d Pad:%d Pos:%"PRId64"\n", asf->packet_size_left, asf->packet_padsize, url_ftell(pb)); + assert(ret>=0); + /* fail safe */ + url_fskip(pb, ret); + + asf->packet_pos= url_ftell(pb); + if (asf->data_object_size != (uint64_t)-1 && + (asf->packet_pos - asf->data_object_offset >= asf->data_object_size)) + return AVERROR(EIO); /* Do not exceed the size of the data object */ + return 1; + } + if (asf->packet_time_start == 0) { + if(asf_read_frame_header(s, pb) < 0){ + asf->packet_segments= 0; + continue; + } + if (asf->stream_index < 0 + || s->streams[asf->stream_index]->discard >= AVDISCARD_ALL + || (!asf->packet_key_frame && s->streams[asf->stream_index]->discard >= AVDISCARD_NONKEY) + ) { + asf->packet_time_start = 0; + /* unhandled packet (should not happen) */ + url_fskip(pb, asf->packet_frag_size); + asf->packet_size_left -= asf->packet_frag_size; + if(asf->stream_index < 0) + av_log(s, AV_LOG_ERROR, "ff asf skip %d (unknown stream)\n", asf->packet_frag_size); + continue; + } + asf->asf_st = s->streams[asf->stream_index]->priv_data; + } + asf_st = asf->asf_st; + + if (asf->packet_replic_size == 1) { + // frag_offset is here used as the beginning timestamp + asf->packet_frag_timestamp = asf->packet_time_start; + asf->packet_time_start += asf->packet_time_delta; + asf->packet_obj_size = asf->packet_frag_size = get_byte(pb); + asf->packet_size_left--; + asf->packet_multi_size--; + if (asf->packet_multi_size < asf->packet_obj_size) + { + asf->packet_time_start = 0; + url_fskip(pb, asf->packet_multi_size); + asf->packet_size_left -= asf->packet_multi_size; + continue; + } + asf->packet_multi_size -= asf->packet_obj_size; + //printf("COMPRESS size %d %d %d ms:%d\n", asf->packet_obj_size, asf->packet_frag_timestamp, asf->packet_size_left, asf->packet_multi_size); + } + if( /*asf->packet_frag_size == asf->packet_obj_size*/ + asf_st->frag_offset + asf->packet_frag_size <= asf_st->pkt.size + && asf_st->frag_offset + asf->packet_frag_size > asf->packet_obj_size){ + av_log(s, AV_LOG_INFO, "ignoring invalid packet_obj_size (%d %d %d %d)\n", + asf_st->frag_offset, asf->packet_frag_size, + asf->packet_obj_size, asf_st->pkt.size); + asf->packet_obj_size= asf_st->pkt.size; + } + + if ( asf_st->pkt.size != asf->packet_obj_size + || asf_st->frag_offset + asf->packet_frag_size > asf_st->pkt.size) { //FIXME is this condition sufficient? + if(asf_st->pkt.data){ + av_log(s, AV_LOG_INFO, "freeing incomplete packet size %d, new %d\n", asf_st->pkt.size, asf->packet_obj_size); + asf_st->frag_offset = 0; + av_free_packet(&asf_st->pkt); + } + /* new packet */ + av_new_packet(&asf_st->pkt, asf->packet_obj_size); + asf_st->seq = asf->packet_seq; + asf_st->pkt.dts = asf->packet_frag_timestamp; + asf_st->pkt.stream_index = asf->stream_index; + asf_st->pkt.pos = + asf_st->packet_pos= asf->packet_pos; +//printf("new packet: stream:%d key:%d packet_key:%d audio:%d size:%d\n", +//asf->stream_index, asf->packet_key_frame, asf_st->pkt.flags & PKT_FLAG_KEY, +//s->streams[asf->stream_index]->codec->codec_type == CODEC_TYPE_AUDIO, asf->packet_obj_size); + if (s->streams[asf->stream_index]->codec->codec_type == CODEC_TYPE_AUDIO) + asf->packet_key_frame = 1; + if (asf->packet_key_frame) + asf_st->pkt.flags |= PKT_FLAG_KEY; + } + + /* read data */ + //printf("READ PACKET s:%d os:%d o:%d,%d l:%d DATA:%p\n", + // asf->packet_size, asf_st->pkt.size, asf->packet_frag_offset, + // asf_st->frag_offset, asf->packet_frag_size, asf_st->pkt.data); + asf->packet_size_left -= asf->packet_frag_size; + if (asf->packet_size_left < 0) + continue; + + if( asf->packet_frag_offset >= asf_st->pkt.size + || asf->packet_frag_size > asf_st->pkt.size - asf->packet_frag_offset){ + av_log(s, AV_LOG_ERROR, "packet fragment position invalid %u,%u not in %u\n", + asf->packet_frag_offset, asf->packet_frag_size, asf_st->pkt.size); + continue; + } + + get_buffer(pb, asf_st->pkt.data + asf->packet_frag_offset, + asf->packet_frag_size); + if (s->key && s->keylen == 20) + ff_asfcrypt_dec(s->key, asf_st->pkt.data + asf->packet_frag_offset, + asf->packet_frag_size); + asf_st->frag_offset += asf->packet_frag_size; + /* test if whole packet is read */ + if (asf_st->frag_offset == asf_st->pkt.size) { + //workaround for macroshit radio DVR-MS files + if( s->streams[asf->stream_index]->codec->codec_id == CODEC_ID_MPEG2VIDEO + && asf_st->pkt.size > 100){ + int i; + for(i=0; ipkt.size && !asf_st->pkt.data[i]; i++); + if(i == asf_st->pkt.size){ + av_log(s, AV_LOG_DEBUG, "discarding ms fart\n"); + asf_st->frag_offset = 0; + av_free_packet(&asf_st->pkt); + continue; + } + } + + /* return packet */ + if (asf_st->ds_span > 1) { + if(asf_st->pkt.size != asf_st->ds_packet_size * asf_st->ds_span){ + av_log(s, AV_LOG_ERROR, "pkt.size != ds_packet_size * ds_span (%d %d %d)\n", asf_st->pkt.size, asf_st->ds_packet_size, asf_st->ds_span); + }else{ + /* packet descrambling */ + uint8_t *newdata = av_malloc(asf_st->pkt.size); + if (newdata) { + int offset = 0; + while (offset < asf_st->pkt.size) { + int off = offset / asf_st->ds_chunk_size; + int row = off / asf_st->ds_span; + int col = off % asf_st->ds_span; + int idx = row + col * asf_st->ds_packet_size / asf_st->ds_chunk_size; + //printf("off:%d row:%d col:%d idx:%d\n", off, row, col, idx); + + assert(offset + asf_st->ds_chunk_size <= asf_st->pkt.size); + assert(idx+1 <= asf_st->pkt.size / asf_st->ds_chunk_size); + memcpy(newdata + offset, + asf_st->pkt.data + idx * asf_st->ds_chunk_size, + asf_st->ds_chunk_size); + offset += asf_st->ds_chunk_size; + } + av_free(asf_st->pkt.data); + asf_st->pkt.data = newdata; + } + } + } + asf_st->frag_offset = 0; + *pkt= asf_st->pkt; + //printf("packet %d %d\n", asf_st->pkt.size, asf->packet_frag_size); + asf_st->pkt.size = 0; + asf_st->pkt.data = 0; + break; // packet completed + } + } + return 0; +} + +static int asf_read_packet(AVFormatContext *s, AVPacket *pkt) +{ + ASFContext *asf = s->priv_data; + + for (;;) { + int ret; + + /* parse cached packets, if any */ + if ((ret = ff_asf_parse_packet(s, s->pb, pkt)) <= 0) + return ret; + if ((ret = ff_asf_get_packet(s, s->pb)) < 0) + assert(asf->packet_size_left < FRAME_HEADER_SIZE || asf->packet_segments < 1); + asf->packet_time_start = 0; + } + + return 0; +} + +// Added to support seeking after packets have been read +// If information is not reset, read_packet fails due to +// leftover information from previous reads +static void asf_reset_header(AVFormatContext *s) +{ + ASFContext *asf = s->priv_data; + ASFStream *asf_st; + int i; + + asf->packet_nb_frames = 0; + asf->packet_size_left = 0; + asf->packet_segments = 0; + asf->packet_flags = 0; + asf->packet_property = 0; + asf->packet_timestamp = 0; + asf->packet_segsizetype = 0; + asf->packet_segments = 0; + asf->packet_seq = 0; + asf->packet_replic_size = 0; + asf->packet_key_frame = 0; + asf->packet_padsize = 0; + asf->packet_frag_offset = 0; + asf->packet_frag_size = 0; + asf->packet_frag_timestamp = 0; + asf->packet_multi_size = 0; + asf->packet_obj_size = 0; + asf->packet_time_delta = 0; + asf->packet_time_start = 0; + + for(i=0; inb_streams; i++){ + asf_st= s->streams[i]->priv_data; + av_free_packet(&asf_st->pkt); + asf_st->frag_offset=0; + asf_st->seq=0; + } + asf->asf_st= NULL; +} + +static int asf_read_close(AVFormatContext *s) +{ + int i; + + asf_reset_header(s); + for(i=0;inb_streams;i++) { + AVStream *st = s->streams[i]; + av_free(st->codec->palctrl); + } + return 0; +} + +static int64_t asf_read_pts(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit) +{ + ASFContext *asf = s->priv_data; + AVPacket pkt1, *pkt = &pkt1; + ASFStream *asf_st; + int64_t pts; + int64_t pos= *ppos; + int i; + int64_t start_pos[s->nb_streams]; + + for(i=0; inb_streams; i++){ + start_pos[i]= pos; + } + + pos= (pos+asf->packet_size-1-s->data_offset)/asf->packet_size*asf->packet_size+ s->data_offset; + *ppos= pos; + url_fseek(s->pb, pos, SEEK_SET); + +//printf("asf_read_pts\n"); + asf_reset_header(s); + for(;;){ + if (av_read_frame(s, pkt) < 0){ + av_log(s, AV_LOG_INFO, "asf_read_pts failed\n"); + return AV_NOPTS_VALUE; + } + + pts= pkt->pts; + + av_free_packet(pkt); + if(pkt->flags&PKT_FLAG_KEY){ + i= pkt->stream_index; + + asf_st= s->streams[i]->priv_data; + +// assert((asf_st->packet_pos - s->data_offset) % asf->packet_size == 0); + pos= asf_st->packet_pos; + + av_add_index_entry(s->streams[i], pos, pts, pkt->size, pos - start_pos[i] + 1, AVINDEX_KEYFRAME); + start_pos[i]= asf_st->packet_pos + 1; + + if(pkt->stream_index == stream_index) + break; + } + } + + *ppos= pos; +//printf("found keyframe at %"PRId64" stream %d stamp:%"PRId64"\n", *ppos, stream_index, pts); + + return pts; +} + +static void asf_build_simple_index(AVFormatContext *s, int stream_index) +{ + GUID g; + ASFContext *asf = s->priv_data; + int64_t gsize, itime; + int64_t pos, current_pos, index_pts; + int i; + int pct,ict; + + current_pos = url_ftell(s->pb); + + url_fseek(s->pb, asf->data_object_offset + asf->data_object_size, SEEK_SET); + get_guid(s->pb, &g); + if (!memcmp(&g, &index_guid, sizeof(GUID))) { + gsize = get_le64(s->pb); + get_guid(s->pb, &g); + itime=get_le64(s->pb); + pct=get_le32(s->pb); + ict=get_le32(s->pb); + av_log(s, AV_LOG_DEBUG, "itime:0x%"PRIx64", pct:%d, ict:%d\n",itime,pct,ict); + + for (i=0;ipb); + int pktct =get_le16(s->pb); + av_log(s, AV_LOG_DEBUG, "pktnum:%d, pktct:%d\n", pktnum, pktct); + + pos=s->data_offset + asf->packet_size*(int64_t)pktnum; + index_pts=av_rescale(itime, i, 10000); + + av_add_index_entry(s->streams[stream_index], pos, index_pts, asf->packet_size, 0, AVINDEX_KEYFRAME); + } + asf->index_read= 1; + } + url_fseek(s->pb, current_pos, SEEK_SET); +} + +static int asf_read_seek(AVFormatContext *s, int stream_index, int64_t pts, int flags) +{ + ASFContext *asf = s->priv_data; + AVStream *st = s->streams[stream_index]; + int64_t pos; + int index; + + if (asf->packet_size <= 0) + return -1; + + /* Try using the protocol's read_seek if available */ + if(s->pb) { + int ret = av_url_read_fseek(s->pb, stream_index, pts, flags); + if(ret >= 0) + asf_reset_header(s); + if (ret != AVERROR(ENOSYS)) + return ret; + } + + if (!asf->index_read) + asf_build_simple_index(s, stream_index); + + if(!(asf->index_read && st->index_entries)){ + if(av_seek_frame_binary(s, stream_index, pts, flags)<0) + return -1; + }else{ + index= av_index_search_timestamp(st, pts, flags); + if(index<0) + return -1; + + /* find the position */ + pos = st->index_entries[index].pos; + pts = st->index_entries[index].timestamp; + + // various attempts to find key frame have failed so far + // asf_reset_header(s); + // url_fseek(s->pb, pos, SEEK_SET); + // key_pos = pos; + // for(i=0;i<16;i++){ + // pos = url_ftell(s->pb); + // if (av_read_frame(s, &pkt) < 0){ + // av_log(s, AV_LOG_INFO, "seek failed\n"); + // return -1; + // } + // asf_st = s->streams[stream_index]->priv_data; + // pos += st->parser->frame_offset; + // + // if (pkt.size > b) { + // b = pkt.size; + // key_pos = pos; + // } + // + // av_free_packet(&pkt); + // } + + /* do the seek */ + av_log(s, AV_LOG_DEBUG, "SEEKTO: %"PRId64"\n", pos); + url_fseek(s->pb, pos, SEEK_SET); + } + asf_reset_header(s); + return 0; +} + +AVInputFormat asf_demuxer = { + "asf", + NULL_IF_CONFIG_SMALL("ASF format"), + sizeof(ASFContext), + asf_probe, + asf_read_header, + asf_read_packet, + asf_read_close, + asf_read_seek, + asf_read_pts, +}; diff --git a/libavformat/asfenc.c b/libavformat/asfenc.c new file mode 100644 index 0000000000..ae6cc2d09a --- /dev/null +++ b/libavformat/asfenc.c @@ -0,0 +1,880 @@ +/* + * ASF muxer + * Copyright (c) 2000, 2001 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include "avformat.h" +#include "metadata.h" +#include "riff.h" +#include "asf.h" + +#undef NDEBUG +#include + + +#define ASF_INDEXED_INTERVAL 10000000 +#define ASF_INDEX_BLOCK 600 + +#define ASF_PACKET_ERROR_CORRECTION_DATA_SIZE 0x2 +#define ASF_PACKET_ERROR_CORRECTION_FLAGS (\ + ASF_PACKET_FLAG_ERROR_CORRECTION_PRESENT | \ + ASF_PACKET_ERROR_CORRECTION_DATA_SIZE\ + ) + +#if (ASF_PACKET_ERROR_CORRECTION_FLAGS != 0) +# define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 1 +#else +# define ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE 0 +#endif + +#define ASF_PPI_PROPERTY_FLAGS (\ + ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE | \ + ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD | \ + ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE | \ + ASF_PL_FLAG_STREAM_NUMBER_LENGTH_FIELD_IS_BYTE \ + ) + +#define ASF_PPI_LENGTH_TYPE_FLAGS 0 + +#define ASF_PAYLOAD_FLAGS ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD + +#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE)) +# define ASF_PPI_SEQUENCE_FIELD_SIZE 1 +#endif +#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE)) +# define ASF_PPI_SEQUENCE_FIELD_SIZE 2 +#endif +#if (ASF_PPI_FLAG_SEQUENCE_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_SEQUENCE_FIELD_SIZE)) +# define ASF_PPI_SEQUENCE_FIELD_SIZE 4 +#endif +#ifndef ASF_PPI_SEQUENCE_FIELD_SIZE +# define ASF_PPI_SEQUENCE_FIELD_SIZE 0 +#endif + + +#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE)) +# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 1 +#endif +#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE)) +# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 2 +#endif +#if (ASF_PPI_FLAG_PACKET_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PACKET_LENGTH_FIELD_SIZE)) +# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 4 +#endif +#ifndef ASF_PPI_PACKET_LENGTH_FIELD_SIZE +# define ASF_PPI_PACKET_LENGTH_FIELD_SIZE 0 +#endif + +#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE)) +# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 1 +#endif +#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE)) +# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 2 +#endif +#if (ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_DWORD == (ASF_PPI_LENGTH_TYPE_FLAGS & ASF_PPI_MASK_PADDING_LENGTH_FIELD_SIZE)) +# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 4 +#endif +#ifndef ASF_PPI_PADDING_LENGTH_FIELD_SIZE +# define ASF_PPI_PADDING_LENGTH_FIELD_SIZE 0 +#endif + +#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE)) +# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 1 +#endif +#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE)) +# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 2 +#endif +#if (ASF_PL_FLAG_REPLICATED_DATA_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_REPLICATED_DATA_LENGTH_FIELD_SIZE)) +# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 4 +#endif +#ifndef ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE +# define ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE 0 +#endif + +#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE)) +# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 1 +#endif +#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE)) +# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 2 +#endif +#if (ASF_PL_FLAG_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_OFFSET_INTO_MEDIA_OBJECT_LENGTH_FIELD_SIZE)) +# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 4 +#endif +#ifndef ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE +# define ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE 0 +#endif + +#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_BYTE == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE)) +# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 1 +#endif +#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_WORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE)) +# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 2 +#endif +#if (ASF_PL_FLAG_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_IS_DWORD == (ASF_PPI_PROPERTY_FLAGS & ASF_PL_MASK_MEDIA_OBJECT_NUMBER_LENGTH_FIELD_SIZE)) +# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 4 +#endif +#ifndef ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE +# define ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE 0 +#endif + +#if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_BYTE == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE)) +# define ASF_PAYLOAD_LENGTH_FIELD_SIZE 1 +#endif +#if (ASF_PL_FLAG_PAYLOAD_LENGTH_FIELD_IS_WORD == (ASF_PAYLOAD_FLAGS & ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE)) +# define ASF_PAYLOAD_LENGTH_FIELD_SIZE 2 +#endif +#ifndef ASF_PAYLOAD_LENGTH_FIELD_SIZE +# define ASF_PAYLOAD_LENGTH_FIELD_SIZE 0 +#endif + +#define PACKET_HEADER_MIN_SIZE (\ + ASF_PACKET_ERROR_CORRECTION_FLAGS_FIELD_SIZE + \ + ASF_PACKET_ERROR_CORRECTION_DATA_SIZE + \ + 1 + /*Length Type Flags*/ \ + 1 + /*Property Flags*/ \ + ASF_PPI_PACKET_LENGTH_FIELD_SIZE + \ + ASF_PPI_SEQUENCE_FIELD_SIZE + \ + ASF_PPI_PADDING_LENGTH_FIELD_SIZE + \ + 4 + /*Send Time Field*/ \ + 2 /*Duration Field*/ \ + ) + + +// Replicated Data shall be at least 8 bytes long. +#define ASF_PAYLOAD_REPLICATED_DATA_LENGTH 0x08 + +#define PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD (\ + 1 + /*Stream Number*/ \ + ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \ + ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \ + ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \ + ASF_PAYLOAD_REPLICATED_DATA_LENGTH \ + ) + +#define PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS (\ + 1 + /*Stream Number*/ \ + ASF_PAYLOAD_MEDIA_OBJECT_NUMBER_FIELD_SIZE + \ + ASF_PAYLOAD_OFFSET_INTO_MEDIA_OBJECT_FIELD_SIZE + \ + ASF_PAYLOAD_REPLICATED_DATA_LENGTH_FIELD_SIZE + \ + ASF_PAYLOAD_REPLICATED_DATA_LENGTH + \ + ASF_PAYLOAD_LENGTH_FIELD_SIZE \ + ) + +#define SINGLE_PAYLOAD_DATA_LENGTH (\ + PACKET_SIZE - \ + PACKET_HEADER_MIN_SIZE - \ + PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD \ + ) + +#define MULTI_PAYLOAD_CONSTANT (\ + PACKET_SIZE - \ + PACKET_HEADER_MIN_SIZE - \ + 1 - /*Payload Flags*/ \ + 2*PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS \ + ) + +static const AVCodecTag codec_asf_bmp_tags[] = { + { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') }, + { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') }, + { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, + { CODEC_ID_NONE, 0 }, +}; + +#define PREROLL_TIME 3100 + +static void put_guid(ByteIOContext *s, const GUID *g) +{ + assert(sizeof(*g) == 16); + put_buffer(s, *g, sizeof(*g)); +} + +static void put_str16_nolen(ByteIOContext *s, const char *tag); +static void put_str16(ByteIOContext *s, const char *tag) +{ + put_le16(s,strlen(tag) + 1); + put_str16_nolen(s, tag); +} + +static void put_str16_nolen(ByteIOContext *s, const char *tag) +{ + int c; + + do{ + c = (uint8_t)*tag++; + put_le16(s, c); + }while(c); +} + +static int64_t put_header(ByteIOContext *pb, const GUID *g) +{ + int64_t pos; + + pos = url_ftell(pb); + put_guid(pb, g); + put_le64(pb, 24); + return pos; +} + +/* update header size */ +static void end_header(ByteIOContext *pb, int64_t pos) +{ + int64_t pos1; + + pos1 = url_ftell(pb); + url_fseek(pb, pos + 16, SEEK_SET); + put_le64(pb, pos1 - pos); + url_fseek(pb, pos1, SEEK_SET); +} + +/* write an asf chunk (only used in streaming case) */ +static void put_chunk(AVFormatContext *s, int type, int payload_length, int flags) +{ + ASFContext *asf = s->priv_data; + ByteIOContext *pb = s->pb; + int length; + + length = payload_length + 8; + put_le16(pb, type); + put_le16(pb, length); //size + put_le32(pb, asf->seqno);//sequence number + put_le16(pb, flags); /* unknown bytes */ + put_le16(pb, length); //size_confirm + asf->seqno++; +} + +/* convert from unix to windows time */ +static int64_t unix_to_file_time(int ti) +{ + int64_t t; + + t = ti * INT64_C(10000000); + t += INT64_C(116444736000000000); + return t; +} + +/* write the header (used two times if non streamed) */ +static int asf_write_header1(AVFormatContext *s, int64_t file_size, int64_t data_chunk_size) +{ + ASFContext *asf = s->priv_data; + ByteIOContext *pb = s->pb; + AVMetadataTag *title, *author, *copyright, *comment; + int header_size, n, extra_size, extra_size2, wav_extra_size, file_time; + int has_title; + int metadata_count; + AVCodecContext *enc; + int64_t header_offset, cur_pos, hpos; + int bit_rate; + int64_t duration; + + title = av_metadata_get(s->metadata, "title" , NULL, 0); + author = av_metadata_get(s->metadata, "author" , NULL, 0); + copyright = av_metadata_get(s->metadata, "copyright", NULL, 0); + comment = av_metadata_get(s->metadata, "comment" , NULL, 0); + + duration = asf->duration + PREROLL_TIME * 10000; + has_title = title || author || copyright || comment; + metadata_count = s->metadata ? s->metadata->count : 0; + + bit_rate = 0; + for(n=0;nnb_streams;n++) { + enc = s->streams[n]->codec; + + av_set_pts_info(s->streams[n], 32, 1, 1000); /* 32 bit pts in ms */ + + bit_rate += enc->bit_rate; + } + + if (asf->is_streamed) { + put_chunk(s, 0x4824, 0, 0xc00); /* start of stream (length will be patched later) */ + } + + put_guid(pb, &asf_header); + put_le64(pb, -1); /* header length, will be patched after */ + put_le32(pb, 3 + has_title + !!metadata_count + s->nb_streams); /* number of chunks in header */ + put_byte(pb, 1); /* ??? */ + put_byte(pb, 2); /* ??? */ + + /* file header */ + header_offset = url_ftell(pb); + hpos = put_header(pb, &file_header); + put_guid(pb, &my_guid); + put_le64(pb, file_size); + file_time = 0; + put_le64(pb, unix_to_file_time(file_time)); + put_le64(pb, asf->nb_packets); /* number of packets */ + put_le64(pb, duration); /* end time stamp (in 100ns units) */ + put_le64(pb, asf->duration); /* duration (in 100ns units) */ + put_le64(pb, PREROLL_TIME); /* start time stamp */ + put_le32(pb, (asf->is_streamed || url_is_streamed(pb)) ? 3 : 2); /* ??? */ + put_le32(pb, asf->packet_size); /* packet size */ + put_le32(pb, asf->packet_size); /* packet size */ + put_le32(pb, bit_rate); /* Nominal data rate in bps */ + end_header(pb, hpos); + + /* unknown headers */ + hpos = put_header(pb, &head1_guid); + put_guid(pb, &head2_guid); + put_le32(pb, 6); + put_le16(pb, 0); + end_header(pb, hpos); + + /* title and other infos */ + if (has_title) { + hpos = put_header(pb, &comment_header); + put_le16(pb, title ? 2 * (strlen(title->value ) + 1) : 0); + put_le16(pb, author ? 2 * (strlen(author->value ) + 1) : 0); + put_le16(pb, copyright ? 2 * (strlen(copyright->value) + 1) : 0); + put_le16(pb, comment ? 2 * (strlen(comment->value ) + 1) : 0); + put_le16(pb, 0); + if (title ) put_str16_nolen(pb, title->value ); + if (author ) put_str16_nolen(pb, author->value ); + if (copyright) put_str16_nolen(pb, copyright->value); + if (comment ) put_str16_nolen(pb, comment->value ); + end_header(pb, hpos); + } + if (metadata_count) { + AVMetadataTag *tag = NULL; + hpos = put_header(pb, &extended_content_header); + put_le16(pb, metadata_count); + while ((tag = av_metadata_get(s->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX))) { + put_le16(pb, 2*(strlen(tag->key) + 3) + 1); + put_le16(pb, 'W'); + put_le16(pb, 'M'); + put_le16(pb, '/'); + put_str16_nolen(pb, tag->key); + put_le16(pb, 0); + put_le16(pb, 2*strlen(tag->value) + 1); + put_str16_nolen(pb, tag->value); + } + end_header(pb, hpos); + } + + /* stream headers */ + for(n=0;nnb_streams;n++) { + int64_t es_pos; + // ASFStream *stream = &asf->streams[n]; + + enc = s->streams[n]->codec; + asf->streams[n].num = n + 1; + asf->streams[n].seq = 0; + + + switch(enc->codec_type) { + case CODEC_TYPE_AUDIO: + wav_extra_size = 0; + extra_size = 18 + wav_extra_size; + extra_size2 = 8; + break; + default: + case CODEC_TYPE_VIDEO: + wav_extra_size = enc->extradata_size; + extra_size = 0x33 + wav_extra_size; + extra_size2 = 0; + break; + } + + hpos = put_header(pb, &stream_header); + if (enc->codec_type == CODEC_TYPE_AUDIO) { + put_guid(pb, &audio_stream); + put_guid(pb, &audio_conceal_spread); + } else { + put_guid(pb, &video_stream); + put_guid(pb, &video_conceal_none); + } + put_le64(pb, 0); /* ??? */ + es_pos = url_ftell(pb); + put_le32(pb, extra_size); /* wav header len */ + put_le32(pb, extra_size2); /* additional data len */ + put_le16(pb, n + 1); /* stream number */ + put_le32(pb, 0); /* ??? */ + + if (enc->codec_type == CODEC_TYPE_AUDIO) { + /* WAVEFORMATEX header */ + int wavsize = put_wav_header(pb, enc); + if ((enc->codec_id != CODEC_ID_MP3) && (enc->codec_id != CODEC_ID_MP2) && (enc->codec_id != CODEC_ID_ADPCM_IMA_WAV) && (enc->extradata_size==0)) { + wavsize += 2; + put_le16(pb, 0); + } + + if (wavsize < 0) + return -1; + if (wavsize != extra_size) { + cur_pos = url_ftell(pb); + url_fseek(pb, es_pos, SEEK_SET); + put_le32(pb, wavsize); /* wav header len */ + url_fseek(pb, cur_pos, SEEK_SET); + } + /* ERROR Correction */ + put_byte(pb, 0x01); + if(enc->codec_id == CODEC_ID_ADPCM_G726 || !enc->block_align){ + put_le16(pb, 0x0190); + put_le16(pb, 0x0190); + }else{ + put_le16(pb, enc->block_align); + put_le16(pb, enc->block_align); + } + put_le16(pb, 0x01); + put_byte(pb, 0x00); + } else { + put_le32(pb, enc->width); + put_le32(pb, enc->height); + put_byte(pb, 2); /* ??? */ + put_le16(pb, 40 + enc->extradata_size); /* size */ + + /* BITMAPINFOHEADER header */ + put_bmp_header(pb, enc, codec_bmp_tags, 1); + } + end_header(pb, hpos); + } + + /* media comments */ + + hpos = put_header(pb, &codec_comment_header); + put_guid(pb, &codec_comment1_header); + put_le32(pb, s->nb_streams); + for(n=0;nnb_streams;n++) { + AVCodec *p; + + enc = s->streams[n]->codec; + p = avcodec_find_encoder(enc->codec_id); + + if(enc->codec_type == CODEC_TYPE_AUDIO) + put_le16(pb, 2); + else if(enc->codec_type == CODEC_TYPE_VIDEO) + put_le16(pb, 1); + else + put_le16(pb, -1); + + if(enc->codec_id == CODEC_ID_WMAV2) + put_str16(pb, "Windows Media Audio V8"); + else + put_str16(pb, p ? p->name : enc->codec_name); + put_le16(pb, 0); /* no parameters */ + + + /* id */ + if (enc->codec_type == CODEC_TYPE_AUDIO) { + put_le16(pb, 2); + put_le16(pb, enc->codec_tag); + } else { + put_le16(pb, 4); + put_le32(pb, enc->codec_tag); + } + if(!enc->codec_tag) + return -1; + } + end_header(pb, hpos); + + /* patch the header size fields */ + + cur_pos = url_ftell(pb); + header_size = cur_pos - header_offset; + if (asf->is_streamed) { + header_size += 8 + 30 + 50; + + url_fseek(pb, header_offset - 10 - 30, SEEK_SET); + put_le16(pb, header_size); + url_fseek(pb, header_offset - 2 - 30, SEEK_SET); + put_le16(pb, header_size); + + header_size -= 8 + 30 + 50; + } + header_size += 24 + 6; + url_fseek(pb, header_offset - 14, SEEK_SET); + put_le64(pb, header_size); + url_fseek(pb, cur_pos, SEEK_SET); + + /* movie chunk, followed by packets of packet_size */ + asf->data_offset = cur_pos; + put_guid(pb, &data_header); + put_le64(pb, data_chunk_size); + put_guid(pb, &my_guid); + put_le64(pb, asf->nb_packets); /* nb packets */ + put_byte(pb, 1); /* ??? */ + put_byte(pb, 1); /* ??? */ + return 0; +} + +static int asf_write_header(AVFormatContext *s) +{ + ASFContext *asf = s->priv_data; + + asf->packet_size = PACKET_SIZE; + asf->nb_packets = 0; + + asf->last_indexed_pts = 0; + asf->index_ptr = av_malloc( sizeof(ASFIndex) * ASF_INDEX_BLOCK ); + asf->nb_index_memory_alloc = ASF_INDEX_BLOCK; + asf->nb_index_count = 0; + asf->maximum_packet = 0; + + /* the data-chunk-size has to be 50, which is data_size - asf->data_offset + * at the moment this function is done. It is needed to use asf as + * streamable format. */ + if (asf_write_header1(s, 0, 50) < 0) { + //av_free(asf); + return -1; + } + + put_flush_packet(s->pb); + + asf->packet_nb_payloads = 0; + asf->packet_timestamp_start = -1; + asf->packet_timestamp_end = -1; + init_put_byte(&asf->pb, asf->packet_buf, asf->packet_size, 1, + NULL, NULL, NULL, NULL); + + return 0; +} + +static int asf_write_stream_header(AVFormatContext *s) +{ + ASFContext *asf = s->priv_data; + + asf->is_streamed = 1; + + return asf_write_header(s); +} + +static int put_payload_parsing_info( + AVFormatContext *s, + unsigned int sendtime, + unsigned int duration, + int nb_payloads, + int padsize + ) +{ + ASFContext *asf = s->priv_data; + ByteIOContext *pb = s->pb; + int ppi_size, i; + int64_t start= url_ftell(pb); + + int iLengthTypeFlags = ASF_PPI_LENGTH_TYPE_FLAGS; + + padsize -= PACKET_HEADER_MIN_SIZE; + if(asf->multi_payloads_present) + padsize--; + assert(padsize>=0); + + put_byte(pb, ASF_PACKET_ERROR_CORRECTION_FLAGS); + for (i = 0; i < ASF_PACKET_ERROR_CORRECTION_DATA_SIZE; i++){ + put_byte(pb, 0x0); + } + + if (asf->multi_payloads_present) + iLengthTypeFlags |= ASF_PPI_FLAG_MULTIPLE_PAYLOADS_PRESENT; + + if (padsize > 0) { + if (padsize < 256) + iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE; + else + iLengthTypeFlags |= ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD; + } + put_byte(pb, iLengthTypeFlags); + + put_byte(pb, ASF_PPI_PROPERTY_FLAGS); + + if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_WORD) + put_le16(pb, padsize - 2); + if (iLengthTypeFlags & ASF_PPI_FLAG_PADDING_LENGTH_FIELD_IS_BYTE) + put_byte(pb, padsize - 1); + + put_le32(pb, sendtime); + put_le16(pb, duration); + if (asf->multi_payloads_present) + put_byte(pb, nb_payloads | ASF_PAYLOAD_FLAGS); + + ppi_size = url_ftell(pb) - start; + + return ppi_size; +} + +static void flush_packet(AVFormatContext *s) +{ + ASFContext *asf = s->priv_data; + int packet_hdr_size, packet_filled_size; + + assert(asf->packet_timestamp_end >= asf->packet_timestamp_start); + + if (asf->is_streamed) { + put_chunk(s, 0x4424, asf->packet_size, 0); + } + + packet_hdr_size = put_payload_parsing_info( + s, + asf->packet_timestamp_start, + asf->packet_timestamp_end - asf->packet_timestamp_start, + asf->packet_nb_payloads, + asf->packet_size_left + ); + + packet_filled_size = PACKET_SIZE - asf->packet_size_left; + assert(packet_hdr_size <= asf->packet_size_left); + memset(asf->packet_buf + packet_filled_size, 0, asf->packet_size_left); + + put_buffer(s->pb, asf->packet_buf, asf->packet_size - packet_hdr_size); + + put_flush_packet(s->pb); + asf->nb_packets++; + asf->packet_nb_payloads = 0; + asf->packet_timestamp_start = -1; + asf->packet_timestamp_end = -1; + init_put_byte(&asf->pb, asf->packet_buf, asf->packet_size, 1, + NULL, NULL, NULL, NULL); +} + +static void put_payload_header( + AVFormatContext *s, + ASFStream *stream, + int presentation_time, + int m_obj_size, + int m_obj_offset, + int payload_len, + int flags + ) +{ + ASFContext *asf = s->priv_data; + ByteIOContext *pb = &asf->pb; + int val; + + val = stream->num; + if (flags & PKT_FLAG_KEY) + val |= ASF_PL_FLAG_KEY_FRAME; + put_byte(pb, val); + + put_byte(pb, stream->seq); //Media object number + put_le32(pb, m_obj_offset); //Offset Into Media Object + + // Replicated Data shall be at least 8 bytes long. + // The first 4 bytes of data shall contain the + // Size of the Media Object that the payload belongs to. + // The next 4 bytes of data shall contain the + // Presentation Time for the media object that the payload belongs to. + put_byte(pb, ASF_PAYLOAD_REPLICATED_DATA_LENGTH); + + put_le32(pb, m_obj_size); //Replicated Data - Media Object Size + put_le32(pb, presentation_time);//Replicated Data - Presentation Time + + if (asf->multi_payloads_present){ + put_le16(pb, payload_len); //payload length + } +} + +static void put_frame( + AVFormatContext *s, + ASFStream *stream, + AVStream *avst, + int timestamp, + const uint8_t *buf, + int m_obj_size, + int flags + ) +{ + ASFContext *asf = s->priv_data; + int m_obj_offset, payload_len, frag_len1; + + m_obj_offset = 0; + while (m_obj_offset < m_obj_size) { + payload_len = m_obj_size - m_obj_offset; + if (asf->packet_timestamp_start == -1) { + asf->multi_payloads_present = (payload_len < MULTI_PAYLOAD_CONSTANT); + + asf->packet_size_left = PACKET_SIZE; + if (asf->multi_payloads_present){ + frag_len1 = MULTI_PAYLOAD_CONSTANT - 1; + } + else { + frag_len1 = SINGLE_PAYLOAD_DATA_LENGTH; + } + asf->packet_timestamp_start = timestamp; + } + else { + // multi payloads + frag_len1 = asf->packet_size_left - PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS - PACKET_HEADER_MIN_SIZE - 1; + + if(frag_len1 < payload_len && avst->codec->codec_type == CODEC_TYPE_AUDIO){ + flush_packet(s); + continue; + } + } + if (frag_len1 > 0) { + if (payload_len > frag_len1) + payload_len = frag_len1; + else if (payload_len == (frag_len1 - 1)) + payload_len = frag_len1 - 2; //additional byte need to put padding length + + put_payload_header(s, stream, timestamp+PREROLL_TIME, m_obj_size, m_obj_offset, payload_len, flags); + put_buffer(&asf->pb, buf, payload_len); + + if (asf->multi_payloads_present) + asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS); + else + asf->packet_size_left -= (payload_len + PAYLOAD_HEADER_SIZE_SINGLE_PAYLOAD); + asf->packet_timestamp_end = timestamp; + + asf->packet_nb_payloads++; + } else { + payload_len = 0; + } + m_obj_offset += payload_len; + buf += payload_len; + + if (!asf->multi_payloads_present) + flush_packet(s); + else if (asf->packet_size_left <= (PAYLOAD_HEADER_SIZE_MULTIPLE_PAYLOADS + PACKET_HEADER_MIN_SIZE + 1)) + flush_packet(s); + } + stream->seq++; +} + +static int asf_write_packet(AVFormatContext *s, AVPacket *pkt) +{ + ASFContext *asf = s->priv_data; + ASFStream *stream; + int64_t duration; + AVCodecContext *codec; + int64_t packet_st,pts; + int start_sec,i; + int flags= pkt->flags; + + codec = s->streams[pkt->stream_index]->codec; + stream = &asf->streams[pkt->stream_index]; + + if(codec->codec_type == CODEC_TYPE_AUDIO) + flags &= ~PKT_FLAG_KEY; + + pts = (pkt->pts != AV_NOPTS_VALUE) ? pkt->pts : pkt->dts; + assert(pts != AV_NOPTS_VALUE); + duration = pts * 10000; + asf->duration= FFMAX(asf->duration, duration + pkt->duration * 10000); + + packet_st = asf->nb_packets; + put_frame(s, stream, s->streams[pkt->stream_index], pkt->dts, pkt->data, pkt->size, flags); + + /* check index */ + if ((!asf->is_streamed) && (flags & PKT_FLAG_KEY)) { + start_sec = (int)(duration / INT64_C(10000000)); + if (start_sec != (int)(asf->last_indexed_pts / INT64_C(10000000))) { + for(i=asf->nb_index_count;i=asf->nb_index_memory_alloc) { + asf->nb_index_memory_alloc += ASF_INDEX_BLOCK; + asf->index_ptr = (ASFIndex*)av_realloc( asf->index_ptr, sizeof(ASFIndex) * asf->nb_index_memory_alloc ); + } + // store + asf->index_ptr[i].packet_number = (uint32_t)packet_st; + asf->index_ptr[i].packet_count = (uint16_t)(asf->nb_packets-packet_st); + asf->maximum_packet = FFMAX(asf->maximum_packet, (uint16_t)(asf->nb_packets-packet_st)); + } + asf->nb_index_count = start_sec; + asf->last_indexed_pts = duration; + } + } + return 0; +} + +// +static int asf_write_index(AVFormatContext *s, ASFIndex *index, uint16_t max, uint32_t count) +{ + ByteIOContext *pb = s->pb; + int i; + + put_guid(pb, &simple_index_header); + put_le64(pb, 24 + 16 + 8 + 4 + 4 + (4 + 2)*count); + put_guid(pb, &my_guid); + put_le64(pb, ASF_INDEXED_INTERVAL); + put_le32(pb, max); + put_le32(pb, count); + for(i=0; ipriv_data; + int64_t file_size,data_size; + + /* flush the current packet */ + if (asf->pb.buf_ptr > asf->pb.buffer) + flush_packet(s); + + /* write index */ + data_size = url_ftell(s->pb); + if ((!asf->is_streamed) && (asf->nb_index_count != 0)) { + asf_write_index(s, asf->index_ptr, asf->maximum_packet, asf->nb_index_count); + } + put_flush_packet(s->pb); + + if (asf->is_streamed || url_is_streamed(s->pb)) { + put_chunk(s, 0x4524, 0, 0); /* end of stream */ + } else { + /* rewrite an updated header */ + file_size = url_ftell(s->pb); + url_fseek(s->pb, 0, SEEK_SET); + asf_write_header1(s, file_size, data_size - asf->data_offset); + } + + put_flush_packet(s->pb); + av_free(asf->index_ptr); + return 0; +} + +#if CONFIG_ASF_MUXER +AVOutputFormat asf_muxer = { + "asf", + NULL_IF_CONFIG_SMALL("ASF format"), + "video/x-ms-asf", + "asf,wmv,wma", + sizeof(ASFContext), +#if CONFIG_LIBMP3LAME + CODEC_ID_MP3, +#else + CODEC_ID_MP2, +#endif + CODEC_ID_MSMPEG4V3, + asf_write_header, + asf_write_packet, + asf_write_trailer, + .flags = AVFMT_GLOBALHEADER, + .codec_tag= (const AVCodecTag* const []){codec_asf_bmp_tags, codec_bmp_tags, codec_wav_tags, 0}, +}; +#endif + +#if CONFIG_ASF_STREAM_MUXER +AVOutputFormat asf_stream_muxer = { + "asf_stream", + NULL_IF_CONFIG_SMALL("ASF format"), + "video/x-ms-asf", + "asf,wmv,wma", + sizeof(ASFContext), +#if CONFIG_LIBMP3LAME + CODEC_ID_MP3, +#else + CODEC_ID_MP2, +#endif + CODEC_ID_MSMPEG4V3, + asf_write_stream_header, + asf_write_packet, + asf_write_trailer, + .flags = AVFMT_GLOBALHEADER, + .codec_tag= (const AVCodecTag* const []){codec_asf_bmp_tags, codec_bmp_tags, codec_wav_tags, 0}, +}; +#endif //CONFIG_ASF_STREAM_MUXER -- cgit v1.2.3