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Electronic Arts CMV demuxer

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Originally committed as revision 14111 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Peter Ross 2008-07-08 13:24:13 +00:00
parent 495900f78b
commit b2f181c270
1 changed files with 15 additions and 0 deletions
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15
libavformat/electronicarts.c
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@ -1,5 +1,6 @@
/* Electronic Arts Multimedia File Demuxer
* Copyright (c) 2004 The ffmpeg Project
* Copyright (c) 2006-2008 Peter Ross
*
* This file is part of FFmpeg.
*
@ -45,6 +46,7 @@
#define MV0K_TAG MKTAG('M', 'V', '0', 'K')
#define MV0F_TAG MKTAG('M', 'V', '0', 'F')
#define MVIh_TAG MKTAG('M', 'V', 'I', 'h') /* CMV header */
#define MVIf_TAG MKTAG('M', 'V', 'I', 'f') /* CMV i-frame */
typedef struct EaDemuxContext {
int big_endian;
@ -299,6 +301,11 @@ static int process_ea_header(AVFormatContext *s) {
err = process_audio_header_sead(s);
break;
case MVIh_TAG :
ea->video_codec = CODEC_ID_CMV;
ea->time_base = (AVRational){0,0};
break;
case MVhd_TAG :
err = process_video_header_vp6(s);
break;
@ -441,9 +448,17 @@ static int ea_read_packet(AVFormatContext *s,
packet_read = 1;
break;
case MVIh_TAG:
key = PKT_FLAG_KEY;
case MVIf_TAG:
url_fseek(pb, -8, SEEK_CUR); // include chunk preamble
chunk_size += 8;
goto get_video_packet;
case MV0K_TAG:
key = PKT_FLAG_KEY;
case MV0F_TAG:
get_video_packet:
ret = av_get_packet(pb, pkt, chunk_size);
if (ret != chunk_size)
ret = AVERROR_IO;