diff options
| -rw-r--r-- | Changelog | 1 | ||||
| -rw-r--r-- | doc/ffmpeg-doc.texi | 3 | ||||
| -rw-r--r-- | libavcodec/Makefile | 1 | ||||
| -rw-r--r-- | libavcodec/allcodecs.c | 3 | ||||
| -rw-r--r-- | libavcodec/avcodec.h | 6 | ||||
| -rw-r--r-- | libavcodec/tiertexseqv.c | 232 | ||||
| -rw-r--r-- | libavformat/Makefile | 1 | ||||
| -rw-r--r-- | libavformat/allformats.c | 3 | ||||
| -rw-r--r-- | libavformat/allformats.h | 1 | ||||
| -rw-r--r-- | libavformat/avformat.h | 4 | ||||
| -rw-r--r-- | libavformat/tiertexseq.c | 305 |
11 files changed, 556 insertions, 4 deletions
@@ -61,6 +61,7 @@ version <next> - WavPack lossless audio decoder - Targa (.TGA) picture decoder - Delphine Software .cin demuxer/audio and video decoder +- Tiertex .seq demuxer/video decoder version 0.4.9-pre1: diff --git a/doc/ffmpeg-doc.texi b/doc/ffmpeg-doc.texi index f41ead5da8..edbc097dd4 100644 --- a/doc/ffmpeg-doc.texi +++ b/doc/ffmpeg-doc.texi @@ -740,6 +740,8 @@ library: @tab Multimedia format used by Delphine Software games. @item MXF @tab @tab X @tab Material eXchange Format SMPTE 377M, used by D-Cinema, broadcast industry. +@item SEQ @tab @tab X +@tab Tiertex .seq files used in the DOS CDROM version of the game Flashback. @end multitable @code{X} means that encoding (resp. decoding) is supported. @@ -843,6 +845,7 @@ following image formats are supported: @item KMVC @tab @tab X @tab Codec used in Worms games. @item VMware Video @tab @tab X @tab Codec used in videos captured by VMware. @item Cin Video @tab @tab X @tab Codec used in Delphine Software games. +@item Tiertex Seq Video @tab @tab X @tab Codec used in DOS CDROM FlashBack game. @end multitable @code{X} means that encoding (resp. decoding) is supported. diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 9f35bfc0ca..830444795c 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -146,6 +146,7 @@ OBJS-$(CONFIG_VCR1_ENCODER) += vcr1.o OBJS-$(CONFIG_VMDAUDIO_DECODER) += vmdav.o OBJS-$(CONFIG_VMDVIDEO_DECODER) += vmdav.o OBJS-$(CONFIG_VMNC_DECODER) += vmnc.o +OBJS-$(CONFIG_TIERTEXSEQVIDEO_DECODER) += tiertexseqv.o OBJS-$(CONFIG_VORBIS_DECODER) += vorbis.o vorbis_data.o OBJS-$(CONFIG_VORBIS_ENCODER) += vorbis_enc.o vorbis_data.o OBJS-$(CONFIG_VP3_DECODER) += vp3.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 0c1a0327cf..897da2aadb 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -554,6 +554,9 @@ void avcodec_register_all(void) #ifdef CONFIG_DSICINAUDIO_DECODER register_avcodec(&dsicinaudio_decoder); #endif //CONFIG_DSICINAUDIO_DECODER +#ifdef CONFIG_TIERTEXSEQVIDEO_DECODER + register_avcodec(&tiertexseqvideo_decoder); +#endif //CONFIG_TIERTEXSEQVIDEO_DECODER #if defined(CONFIG_AMR_NB) || defined(CONFIG_AMR_NB_FIXED) #ifdef CONFIG_AMR_NB_DECODER diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 195de4b4a3..4503441c66 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -37,8 +37,8 @@ extern "C" { #define AV_STRINGIFY(s) AV_TOSTRING(s) #define AV_TOSTRING(s) #s -#define LIBAVCODEC_VERSION_INT ((51<<16)+(18<<8)+0) -#define LIBAVCODEC_VERSION 51.18.0 +#define LIBAVCODEC_VERSION_INT ((51<<16)+(19<<8)+0) +#define LIBAVCODEC_VERSION 51.19.0 #define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT #define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION) @@ -146,6 +146,7 @@ enum CodecID { CODEC_ID_VP6F, CODEC_ID_TARGA, CODEC_ID_DSICINVIDEO, + CODEC_ID_TIERTEXSEQVIDEO, /* various pcm "codecs" */ CODEC_ID_PCM_S16LE= 0x10000, @@ -2298,6 +2299,7 @@ extern AVCodec wavpack_decoder; extern AVCodec targa_decoder; extern AVCodec dsicinvideo_decoder; extern AVCodec dsicinaudio_decoder; +extern AVCodec tiertexseqvideo_decoder; /* pcm codecs */ #define PCM_CODEC(id, name) \ diff --git a/libavcodec/tiertexseqv.c b/libavcodec/tiertexseqv.c new file mode 100644 index 0000000000..ca3baf09ef --- /dev/null +++ b/libavcodec/tiertexseqv.c @@ -0,0 +1,232 @@ +/* + * Tiertex Limited SEQ Video Decoder + * Copyright (c) 2006 Gregory Montoir (cyx@users.sourceforge.net) + * + * 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 + */ + +/** + * @file tiertexseqv.c + * Tiertex Limited SEQ video decoder + */ + +#include "avcodec.h" +#include "common.h" +#define ALT_BITSTREAM_READER_LE +#include "bitstream.h" + + +typedef struct SeqVideoContext { + AVCodecContext *avctx; + AVFrame frame; + unsigned int palette[256]; + unsigned char block[8 * 8]; +} SeqVideoContext; + + +static unsigned char *seq_unpack_rle_block(unsigned char *src, unsigned char *dst, int dst_size) +{ + int i, len, sz; + GetBitContext gb; + int code_table[64]; + + /* get the rle codes (at most 64 bytes) */ + init_get_bits(&gb, src, 64 * 8); + for (i = 0, sz = 0; i < 64 && sz < dst_size; i++) { + code_table[i] = get_sbits(&gb, 4); + sz += FFABS(code_table[i]); + } + src += (get_bits_count(&gb) + 7) / 8; + + /* do the rle unpacking */ + for (i = 0; i < 64 && dst_size > 0; i++) { + len = code_table[i]; + if (len < 0) { + len = -len; + memset(dst, *src++, FFMIN(len, dst_size)); + } else { + memcpy(dst, src, FFMIN(len, dst_size)); + src += len; + } + dst += len; + dst_size -= len; + } + return src; +} + +static unsigned char *seq_decode_op1(SeqVideoContext *seq, unsigned char *src, unsigned char *dst) +{ + unsigned char *color_table; + int b, i, len, bits; + GetBitContext gb; + + len = *src++; + if (len & 0x80) { + switch (len & 3) { + case 1: + src = seq_unpack_rle_block(src, seq->block, sizeof(seq->block)); + for (b = 0; b < 8; b++) { + memcpy(dst, &seq->block[b * 8], 8); + dst += seq->frame.linesize[0]; + } + break; + case 2: + src = seq_unpack_rle_block(src, seq->block, sizeof(seq->block)); + for (i = 0; i < 8; i++) { + for (b = 0; b < 8; b++) + dst[b * seq->frame.linesize[0]] = seq->block[i * 8 + b]; + ++dst; + } + break; + } + } else { + color_table = src; + src += len; + bits = ff_log2_tab[len - 1] + 1; + init_get_bits(&gb, src, bits * 8 * 8); src += bits * 8; + for (b = 0; b < 8; b++) { + for (i = 0; i < 8; i++) + dst[i] = color_table[get_bits(&gb, bits)]; + dst += seq->frame.linesize[0]; + } + } + + return src; +} + +static unsigned char *seq_decode_op2(SeqVideoContext *seq, unsigned char *src, unsigned char *dst) +{ + int i; + + for (i = 0; i < 8; i++) { + memcpy(dst, src, 8); + src += 8; + dst += seq->frame.linesize[0]; + } + + return src; +} + +static unsigned char *seq_decode_op3(SeqVideoContext *seq, unsigned char *src, unsigned char *dst) +{ + int pos, offset; + + do { + pos = *src++; + offset = ((pos >> 3) & 7) * seq->frame.linesize[0] + (pos & 7); + dst[offset] = *src++; + } while (!(pos & 0x80)); + + return src; +} + +static void seqvideo_decode(SeqVideoContext *seq, unsigned char *data, int data_size) +{ + GetBitContext gb; + int flags, i, j, x, y, op; + unsigned char c[3]; + unsigned char *dst; + + flags = *data++; + + if (flags & 1) { + for (i = 0; i < 256; i++) { + for (j = 0; j < 3; j++, data++) + c[j] = (*data << 2) | (*data >> 4); + seq->palette[i] = (c[0] << 16) | (c[1] << 8) | c[2]; + } + memcpy(seq->frame.data[1], seq->palette, sizeof(seq->palette)); + seq->frame.palette_has_changed = 1; + } + + if (flags & 2) { + init_get_bits(&gb, data, 128 * 8); data += 128; + for (y = 0; y < 128; y += 8) + for (x = 0; x < 256; x += 8) { + dst = &seq->frame.data[0][y * seq->frame.linesize[0] + x]; + op = get_bits(&gb, 2); + switch (op) { + case 1: + data = seq_decode_op1(seq, data, dst); + break; + case 2: + data = seq_decode_op2(seq, data, dst); + break; + case 3: + data = seq_decode_op3(seq, data, dst); + break; + } + } + } +} + +static int seqvideo_decode_init(AVCodecContext *avctx) +{ + SeqVideoContext *seq = (SeqVideoContext *)avctx->priv_data; + + seq->avctx = avctx; + avctx->pix_fmt = PIX_FMT_PAL8; + avctx->has_b_frames = 0; + + seq->frame.data[0] = NULL; + + return 0; +} + +static int seqvideo_decode_frame(AVCodecContext *avctx, + void *data, int *data_size, + uint8_t *buf, int buf_size) +{ + + SeqVideoContext *seq = (SeqVideoContext *)avctx->priv_data; + + seq->frame.reference = 1; + seq->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE; + if (avctx->reget_buffer(avctx, &seq->frame)) { + av_log(seq->avctx, AV_LOG_ERROR, "tiertexseqvideo: reget_buffer() failed\n"); + return -1; + } + + seqvideo_decode(seq, buf, buf_size); + + *data_size = sizeof(AVFrame); + *(AVFrame *)data = seq->frame; + + return buf_size; +} + +static int seqvideo_decode_end(AVCodecContext *avctx) +{ + SeqVideoContext *seq = (SeqVideoContext *)avctx->priv_data; + + if (seq->frame.data[0]) + avctx->release_buffer(avctx, &seq->frame); + + return 0; +} + +AVCodec tiertexseqvideo_decoder = { + "tiertexseqvideo", + CODEC_TYPE_VIDEO, + CODEC_ID_TIERTEXSEQVIDEO, + sizeof(SeqVideoContext), + seqvideo_decode_init, + NULL, + seqvideo_decode_end, + seqvideo_decode_frame, + CODEC_CAP_DR1, +}; diff --git a/libavformat/Makefile b/libavformat/Makefile index 241a48f15d..ce3527ae40 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -130,6 +130,7 @@ OBJS-$(CONFIG_WSVQA_DEMUXER) += westwood.o OBJS-$(CONFIG_WV_DEMUXER) += wv.o OBJS-$(CONFIG_YUV4MPEGPIPE_MUXER) += yuv4mpeg.o OBJS-$(CONFIG_YUV4MPEGPIPE_DEMUXER) += yuv4mpeg.o +OBJS-$(CONFIG_TIERTEXSEQ_DEMUXER) += tiertexseq.o # image formats OBJS+= pnm.o yuv.o png.o jpeg.o gifdec.o sgi.o diff --git a/libavformat/allformats.c b/libavformat/allformats.c index 4e48ce6c64..5967b971f4 100644 --- a/libavformat/allformats.c +++ b/libavformat/allformats.c @@ -478,6 +478,9 @@ void av_register_all(void) #ifdef CONFIG_YUV4MPEGPIPE_DEMUXER av_register_input_format(&yuv4mpegpipe_demuxer); #endif +#ifdef CONFIG_TIERTEXSEQ_DEMUXER + av_register_input_format(&tiertexseq_demuxer); +#endif /* image formats */ #if 0 diff --git a/libavformat/allformats.h b/libavformat/allformats.h index 7cbaf10e56..d63f044105 100644 --- a/libavformat/allformats.h +++ b/libavformat/allformats.h @@ -162,6 +162,7 @@ extern AVInputFormat wsvqa_demuxer; extern AVInputFormat wv_demuxer; extern AVOutputFormat yuv4mpegpipe_muxer; extern AVInputFormat yuv4mpegpipe_demuxer; +extern AVInputFormat tiertexseq_demuxer; /* raw.c */ int pcm_read_seek(AVFormatContext *s, diff --git a/libavformat/avformat.h b/libavformat/avformat.h index 1fb9fe5c29..a1d6b3617a 100644 --- a/libavformat/avformat.h +++ b/libavformat/avformat.h @@ -25,8 +25,8 @@ extern "C" { #endif -#define LIBAVFORMAT_VERSION_INT ((50<<16)+(5<<8)+0) -#define LIBAVFORMAT_VERSION 50.5.0 +#define LIBAVFORMAT_VERSION_INT ((50<<16)+(6<<8)+0) +#define LIBAVFORMAT_VERSION 50.6.0 #define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT #define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION) diff --git a/libavformat/tiertexseq.c b/libavformat/tiertexseq.c new file mode 100644 index 0000000000..d252326208 --- /dev/null +++ b/libavformat/tiertexseq.c @@ -0,0 +1,305 @@ +/* + * Tiertex Limited SEQ File Demuxer + * Copyright (c) 2006 Gregory Montoir (cyx@users.sourceforge.net) + * + * 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 + */ + +/** + * @file tiertexseq.c + * Tiertex Limited SEQ file demuxer + */ + +#include "avformat.h" + +#define SEQ_FRAME_SIZE 6144 +#define SEQ_FRAME_W 256 +#define SEQ_FRAME_H 128 +#define SEQ_NUM_FRAME_BUFFERS 30 +#define SEQ_AUDIO_BUFFER_SIZE 882 +#define SEQ_SAMPLE_RATE 22050 +#define SEQ_FRAME_RATE 25 + + +typedef struct TiertexSeqFrameBuffer { + int fill_size; + int data_size; + unsigned char *data; +} TiertexSeqFrameBuffer; + +typedef struct SeqDemuxContext { + int audio_stream_index; + int video_stream_index; + int current_frame_pts; + int current_frame_offs; + TiertexSeqFrameBuffer frame_buffers[SEQ_NUM_FRAME_BUFFERS]; + int frame_buffers_count; + unsigned int current_audio_data_size; + unsigned int current_audio_data_offs; + unsigned int current_pal_data_size; + unsigned int current_pal_data_offs; + unsigned int current_video_data_size; + unsigned char *current_video_data_ptr; + int audio_buffer_full; +} SeqDemuxContext; + + +static int seq_probe(AVProbeData *p) +{ + int i; + + if (p->buf_size < 256) + return 0; + + /* there's no real header in a .seq file, the only thing they have in common */ + /* is the first 256 bytes of the file which are always filled with 0 */ + for (i = 0; i < 256; i++) + if (p->buf[0] != 0) + return 0; + + /* only one fourth of the score since the previous check is too naive */ + return AVPROBE_SCORE_MAX / 4; +} + +static int seq_init_frame_buffers(SeqDemuxContext *seq, ByteIOContext *pb) +{ + int i, sz; + TiertexSeqFrameBuffer *seq_buffer; + + url_fseek(pb, 256, SEEK_SET); + + for (i = 0; i < SEQ_NUM_FRAME_BUFFERS; i++) { + sz = get_le16(pb); + if (sz == 0) + break; + else { + seq_buffer = &seq->frame_buffers[i]; + seq_buffer->fill_size = 0; + seq_buffer->data_size = sz; + seq_buffer->data = av_malloc(sz); + if (!seq_buffer->data) + return AVERROR_NOMEM; + } + } + seq->frame_buffers_count = i; + return 0; +} + +static int seq_fill_buffer(SeqDemuxContext *seq, ByteIOContext *pb, int buffer_num, unsigned int data_offs, int data_size) +{ + TiertexSeqFrameBuffer *seq_buffer; + + if (buffer_num >= SEQ_NUM_FRAME_BUFFERS) + return AVERROR_INVALIDDATA; + + seq_buffer = &seq->frame_buffers[buffer_num]; + if (seq_buffer->fill_size + data_size > seq_buffer->data_size) + return AVERROR_INVALIDDATA; + + url_fseek(pb, seq->current_frame_offs + data_offs, SEEK_SET); + if (get_buffer(pb, seq_buffer->data + seq_buffer->fill_size, data_size) != data_size) + return AVERROR_IO; + + seq_buffer->fill_size += data_size; + return 0; +} + +static int seq_parse_frame_data(SeqDemuxContext *seq, ByteIOContext *pb) +{ + unsigned int offset_table[4], buffer_num[4]; + TiertexSeqFrameBuffer *seq_buffer; + int i, e; + + seq->current_frame_offs += SEQ_FRAME_SIZE; + url_fseek(pb, seq->current_frame_offs, SEEK_SET); + + /* sound data */ + seq->current_audio_data_offs = get_le16(pb); + if (seq->current_audio_data_offs != 0) { + seq->current_audio_data_size = SEQ_AUDIO_BUFFER_SIZE * 2; + } else { + seq->current_audio_data_size = 0; + } + + /* palette data */ + seq->current_pal_data_offs = get_le16(pb); + if (seq->current_pal_data_offs != 0) { + seq->current_pal_data_size = 768; + } else { + seq->current_pal_data_size = 0; + } + + /* video data */ + for (i = 0; i < 4; i++) + buffer_num[i] = get_byte(pb); + + for (i = 0; i < 4; i++) + offset_table[i] = get_le16(pb); + + for (i = 0; i < 3; i++) { + if (offset_table[i] != 0) { + for (e = i + 1; e < 4 && offset_table[e] == 0; e++); + seq_fill_buffer(seq, pb, buffer_num[1 + i], + offset_table[i], + offset_table[e] - offset_table[i]); + } + } + + if (buffer_num[0] != 255) { + seq_buffer = &seq->frame_buffers[buffer_num[0]]; + seq->current_video_data_size = seq_buffer->fill_size; + seq->current_video_data_ptr = seq_buffer->data; + seq_buffer->fill_size = 0; + } else { + seq->current_video_data_size = 0; + seq->current_video_data_ptr = 0; + } + + return 0; +} + +static int seq_read_header(AVFormatContext *s, AVFormatParameters *ap) +{ + int i, rc; + SeqDemuxContext *seq = (SeqDemuxContext *)s->priv_data; + ByteIOContext *pb = &s->pb; + AVStream *st; + + /* init internal buffers */ + rc = seq_init_frame_buffers(seq, pb); + if (rc) + return rc; + + seq->current_frame_offs = 0; + + /* preload (no audio data, just buffer operations related data) */ + for (i = 1; i <= 100; i++) { + rc = seq_parse_frame_data(seq, pb); + if (rc) + return rc; + } + + seq->current_frame_pts = 0; + + seq->audio_buffer_full = 0; + + /* initialize the video decoder stream */ + st = av_new_stream(s, 0); + if (!st) + return AVERROR_NOMEM; + + av_set_pts_info(st, 32, 1, SEQ_FRAME_RATE); + seq->video_stream_index = st->index; + st->codec->codec_type = CODEC_TYPE_VIDEO; + st->codec->codec_id = CODEC_ID_TIERTEXSEQVIDEO; + st->codec->codec_tag = 0; /* no fourcc */ + st->codec->width = SEQ_FRAME_W; + st->codec->height = SEQ_FRAME_H; + + /* initialize the audio decoder stream */ + st = av_new_stream(s, 0); + if (!st) + return AVERROR_NOMEM; + + av_set_pts_info(st, 32, 1, SEQ_SAMPLE_RATE); + seq->audio_stream_index = st->index; + st->codec->codec_type = CODEC_TYPE_AUDIO; + st->codec->codec_id = CODEC_ID_PCM_S16BE; + st->codec->codec_tag = 0; /* no tag */ + st->codec->channels = 1; + st->codec->sample_rate = SEQ_SAMPLE_RATE; + st->codec->bits_per_sample = 16; + st->codec->bit_rate = st->codec->sample_rate * st->codec->bits_per_sample * st->codec->channels; + st->codec->block_align = st->codec->channels * st->codec->bits_per_sample; + + return 0; +} + +static int seq_read_packet(AVFormatContext *s, AVPacket *pkt) +{ + int rc; + SeqDemuxContext *seq = (SeqDemuxContext *)s->priv_data; + ByteIOContext *pb = &s->pb; + + if (!seq->audio_buffer_full) { + rc = seq_parse_frame_data(seq, pb); + if (rc) + return rc; + + /* video packet */ + if (seq->current_pal_data_size + seq->current_video_data_size != 0) { + if (av_new_packet(pkt, 1 + seq->current_pal_data_size + seq->current_video_data_size)) + return AVERROR_NOMEM; + + pkt->data[0] = 0; + if (seq->current_pal_data_size != 0) { + pkt->data[0] |= 1; + url_fseek(pb, seq->current_frame_offs + seq->current_pal_data_offs, SEEK_SET); + if (get_buffer(pb, &pkt->data[1], seq->current_pal_data_size) != seq->current_pal_data_size) + return AVERROR_IO; + } + if (seq->current_video_data_size != 0) { + pkt->data[0] |= 2; + memcpy(&pkt->data[1 + seq->current_pal_data_size], + seq->current_video_data_ptr, + seq->current_video_data_size); + } + pkt->stream_index = seq->video_stream_index; + pkt->pts = seq->current_frame_pts; + + /* sound buffer will be processed on next read_packet() call */ + seq->audio_buffer_full = 1; + return 0; + } + } + + /* audio packet */ + if (seq->current_audio_data_offs == 0) /* end of data reached */ + return AVERROR_IO; + + url_fseek(pb, seq->current_frame_offs + seq->current_audio_data_offs, SEEK_SET); + rc = av_get_packet(pb, pkt, seq->current_audio_data_size); + if (rc < 0) + return rc; + + pkt->stream_index = seq->audio_stream_index; + pkt->pts = seq->current_frame_pts++; + + seq->audio_buffer_full = 0; + return 0; +} + +static int seq_read_close(AVFormatContext *s) +{ + int i; + SeqDemuxContext *seq = (SeqDemuxContext *)s->priv_data; + + for (i = 0; i < SEQ_NUM_FRAME_BUFFERS; i++) + av_free(seq->frame_buffers[i].data); + + return 0; +} + +AVInputFormat tiertexseq_demuxer = { + "tiertexseq", + "Tiertex Limited SEQ format", + sizeof(SeqDemuxContext), + seq_probe, + seq_read_header, + seq_read_packet, + seq_read_close, +}; |