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-rw-r--r--libavformat/libogg.c281
1 files changed, 0 insertions, 281 deletions
diff --git a/libavformat/libogg.c b/libavformat/libogg.c
deleted file mode 100644
index 9ed4f1d5f0..0000000000
--- a/libavformat/libogg.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- * Ogg bitstream support
- * Mark Hills <mark@pogo.org.uk>
- *
- * Uses libogg, but requires libvorbisenc to construct correct headers
- * when containing Vorbis stream -- currently the only format supported
- *
- * 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 <stdio.h>
-
-#include <ogg/ogg.h>
-
-#include "avformat.h"
-
-
-#define DECODER_BUFFER_SIZE 4096
-
-
-typedef struct OggContext {
- /* output */
- ogg_stream_state os ;
- int header_handled ;
- ogg_packet op;
-
- /* input */
- ogg_sync_state oy ;
-} OggContext ;
-
-
-#ifdef CONFIG_MUXERS
-static int ogg_write_header(AVFormatContext *avfcontext)
-{
- OggContext *context = avfcontext->priv_data;
- ogg_packet *op= &context->op;
- int n;
-
- ogg_stream_init(&context->os, 31415);
-
- for(n = 0 ; n < avfcontext->nb_streams ; n++) {
- AVCodecContext *codec = avfcontext->streams[n]->codec;
- uint8_t *headers = codec->extradata;
- int headers_len = codec->extradata_size;
- uint8_t *header_start[3];
- int header_len[3];
- int i, j;
-
- av_set_pts_info(avfcontext->streams[n], 60, 1, AV_TIME_BASE);
-
- for(j=1,i=0;i<2;++i, ++j) {
- header_len[i]=0;
- while(j<headers_len && headers[j]==0xff) {
- header_len[i]+=0xff;
- ++j;
- }
- header_len[i]+=headers[j];
- }
- header_len[2]=headers_len-header_len[0]-header_len[1]-j;
- headers+=j;
- header_start[0] = headers;
- header_start[1] = header_start[0] + header_len[0];
- header_start[2] = header_start[1] + header_len[1];
-
- for(i=0; i < 3; ++i){
- op->bytes = header_len[i];
-
- op->packet= header_start[i];
- op->b_o_s= op->packetno==0;
-
- ogg_stream_packetin(&context->os, op);
-
- op->packetno++; //FIXME multiple streams
- }
-
- context->header_handled = 0 ;
- }
-
- return 0 ;
-}
-
-static int ogg_write_packet(AVFormatContext *avfcontext, AVPacket *pkt)
-{
- OggContext *context = avfcontext->priv_data ;
- AVCodecContext *avctx= avfcontext->streams[pkt->stream_index]->codec;
- ogg_packet *op= &context->op;
- ogg_page og ;
- int64_t pts;
-
- pts= av_rescale(pkt->pts, avctx->sample_rate, AV_TIME_BASE);
-
-// av_log(avfcontext, AV_LOG_DEBUG, "M%d\n", size);
-
- /* flush header packets so audio starts on a new page */
-
- if(!context->header_handled) {
- while(ogg_stream_flush(&context->os, &og)) {
- put_buffer(&avfcontext->pb, og.header, og.header_len) ;
- put_buffer(&avfcontext->pb, og.body, og.body_len) ;
- put_flush_packet(&avfcontext->pb);
- }
- context->header_handled = 1 ;
- }
-
- op->packet = (uint8_t*) pkt->data;
- op->bytes = pkt->size;
- op->b_o_s = op->packetno == 0;
- op->granulepos= pts;
-
- /* correct the fields in the packet -- essential for streaming */
-
- ogg_stream_packetin(&context->os, op);
-
- while(ogg_stream_pageout(&context->os, &og)) {
- put_buffer(&avfcontext->pb, og.header, og.header_len);
- put_buffer(&avfcontext->pb, og.body, og.body_len);
- put_flush_packet(&avfcontext->pb);
- }
- op->packetno++;
-
- return 0;
-}
-
-
-static int ogg_write_trailer(AVFormatContext *avfcontext) {
- OggContext *context = avfcontext->priv_data ;
- ogg_page og ;
-
- while(ogg_stream_flush(&context->os, &og)) {
- put_buffer(&avfcontext->pb, og.header, og.header_len) ;
- put_buffer(&avfcontext->pb, og.body, og.body_len) ;
- put_flush_packet(&avfcontext->pb);
- }
-
- ogg_stream_clear(&context->os) ;
- return 0 ;
-}
-
-
-AVOutputFormat libogg_muxer = {
- "libogg",
- "Ogg format",
- "application/ogg",
- "ogg",
- sizeof(OggContext),
- CODEC_ID_VORBIS,
- 0,
- ogg_write_header,
- ogg_write_packet,
- ogg_write_trailer,
-} ;
-#endif //CONFIG_MUXERS
-
-#if 0
-static int next_packet(AVFormatContext *avfcontext, ogg_packet *op) {
- OggContext *context = avfcontext->priv_data ;
- ogg_page og ;
- char *buf ;
-
- while(ogg_stream_packetout(&context->os, op) != 1) {
-
- /* while no pages are available, read in more data to the sync */
- while(ogg_sync_pageout(&context->oy, &og) != 1) {
- buf = ogg_sync_buffer(&context->oy, DECODER_BUFFER_SIZE) ;
- if(get_buffer(&avfcontext->pb, buf, DECODER_BUFFER_SIZE) <= 0)
- return 1 ;
- ogg_sync_wrote(&context->oy, DECODER_BUFFER_SIZE) ;
- }
-
- /* got a page. Feed it into the stream and get the packet */
- if(ogg_stream_pagein(&context->os, &og) != 0)
- return 1 ;
- }
-
- return 0 ;
-}
-
-
-static int ogg_read_header(AVFormatContext *avfcontext, AVFormatParameters *ap)
-{
- OggContext *context = avfcontext->priv_data;
- ogg_packet op ;
- char *buf ;
- ogg_page og ;
- AVStream *ast ;
- AVCodecContext *codec;
- uint8_t *p;
- int i;
-
- ogg_sync_init(&context->oy) ;
- buf = ogg_sync_buffer(&context->oy, DECODER_BUFFER_SIZE) ;
-
- if(get_buffer(&avfcontext->pb, buf, DECODER_BUFFER_SIZE) <= 0)
- return AVERROR(EIO) ;
-
- ogg_sync_wrote(&context->oy, DECODER_BUFFER_SIZE) ;
- ogg_sync_pageout(&context->oy, &og) ;
- ogg_stream_init(&context->os, ogg_page_serialno(&og)) ;
- ogg_stream_pagein(&context->os, &og) ;
-
- /* currently only one vorbis stream supported */
-
- ast = av_new_stream(avfcontext, 0) ;
- if(!ast)
- return AVERROR(ENOMEM) ;
- av_set_pts_info(ast, 60, 1, AV_TIME_BASE);
-
- codec= &ast->codec;
- codec->codec_type = CODEC_TYPE_AUDIO;
- codec->codec_id = CODEC_ID_VORBIS;
- for(i=0; i<3; i++){
- if(next_packet(avfcontext, &op)){
- return -1;
- }
- if(op.bytes >= (1<<16) || op.bytes < 0)
- return -1;
- codec->extradata_size+= 2 + op.bytes;
- codec->extradata= av_realloc(codec->extradata, codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
- memset(codec->extradata + codec->extradata_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
- p= codec->extradata + codec->extradata_size - 2 - op.bytes;
- *(p++)= op.bytes>>8;
- *(p++)= op.bytes&0xFF;
- memcpy(p, op.packet, op.bytes);
- }
-
- return 0 ;
-}
-
-
-static int ogg_read_packet(AVFormatContext *avfcontext, AVPacket *pkt) {
- ogg_packet op ;
-
- if(next_packet(avfcontext, &op))
- return AVERROR(EIO) ;
- if(av_new_packet(pkt, op.bytes) < 0)
- return AVERROR(EIO) ;
- pkt->stream_index = 0 ;
- memcpy(pkt->data, op.packet, op.bytes);
- if(avfcontext->streams[0]->codec.sample_rate && op.granulepos!=-1)
- pkt->pts= av_rescale(op.granulepos, AV_TIME_BASE, avfcontext->streams[0]->codec.sample_rate);
-// printf("%"PRId64" %d %d\n", pkt->pts, (int)op.granulepos, avfcontext->streams[0]->codec.sample_rate);
-
- return op.bytes;
-}
-
-
-static int ogg_read_close(AVFormatContext *avfcontext) {
- OggContext *context = avfcontext->priv_data ;
-
- ogg_stream_clear(&context->os) ;
- ogg_sync_clear(&context->oy) ;
-
- return 0 ;
-}
-
-
-static AVInputFormat ogg_iformat = {
- "ogg",
- "Ogg Vorbis",
- sizeof(OggContext),
- NULL,
- ogg_read_header,
- ogg_read_packet,
- ogg_read_close,
- .extensions = "ogg",
-} ;
-#endif
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