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| author | Kostya Shishkov <kostya.shishkov@gmail.com> | 2008-12-27 17:34:00 +0000 |
|---|---|---|
| committer | Kostya Shishkov <kostya.shishkov@gmail.com> | 2008-12-27 17:34:00 +0000 |
| commit | 10f35ebddd8b32b5eae17fa7cd1f2ace08f3a705 (patch) | |
| tree | 4aa8e59e3bddb1b16ba1a1785d997a31697204ac | |
| parent | edf7c2b26fde4719ed761f733afe977be31da674 (diff) | |
| download | ffmpeg-10f35ebddd8b32b5eae17fa7cd1f2ace08f3a705.tar.gz | |
Latest Coktel Vision VMDs contained Indeo 3, add demuxer support for it
Originally committed as revision 16363 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavformat/sierravmd.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/libavformat/sierravmd.c b/libavformat/sierravmd.c index 1bd00f2b51..c3d058bf49 100644 --- a/libavformat/sierravmd.c +++ b/libavformat/sierravmd.c @@ -49,6 +49,7 @@ typedef struct VmdDemuxContext { unsigned int frames_per_block; vmd_frame *frame_table; unsigned int current_frame; + int is_indeo3; int sample_rate; int64_t audio_sample_counter; @@ -91,6 +92,10 @@ static int vmd_read_header(AVFormatContext *s, if (get_buffer(pb, vmd->vmd_header, VMD_HEADER_SIZE) != VMD_HEADER_SIZE) return AVERROR(EIO); + if(vmd->vmd_header[16] == 'i' && vmd->vmd_header[17] == 'v' && vmd->vmd_header[18] == '3') + vmd->is_indeo3 = 1; + else + vmd->is_indeo3 = 1; /* start up the decoders */ vst = av_new_stream(s, 0); if (!vst) @@ -98,10 +103,14 @@ static int vmd_read_header(AVFormatContext *s, av_set_pts_info(vst, 33, 1, 10); vmd->video_stream_index = vst->index; vst->codec->codec_type = CODEC_TYPE_VIDEO; - vst->codec->codec_id = CODEC_ID_VMDVIDEO; + vst->codec->codec_id = vmd->is_indeo3 ? CODEC_ID_INDEO3 : CODEC_ID_VMDVIDEO; vst->codec->codec_tag = 0; /* no fourcc */ vst->codec->width = AV_RL16(&vmd->vmd_header[12]); vst->codec->height = AV_RL16(&vmd->vmd_header[14]); + if(vmd->is_indeo3 && vst->codec->width > 320){ + vst->codec->width >>= 1; + vst->codec->height >>= 1; + } vst->codec->extradata_size = VMD_HEADER_SIZE; vst->codec->extradata = av_mallocz(VMD_HEADER_SIZE + FF_INPUT_BUFFER_PADDING_SIZE); memcpy(vst->codec->extradata, vmd->vmd_header, VMD_HEADER_SIZE); @@ -261,8 +270,11 @@ static int vmd_read_packet(AVFormatContext *s, return AVERROR(ENOMEM); pkt->pos= url_ftell(pb); memcpy(pkt->data, frame->frame_record, BYTES_PER_FRAME_RECORD); - ret = get_buffer(pb, pkt->data + BYTES_PER_FRAME_RECORD, - frame->frame_size); + if(vmd->is_indeo3) + ret = get_buffer(pb, pkt->data, frame->frame_size); + else + ret = get_buffer(pb, pkt->data + BYTES_PER_FRAME_RECORD, + frame->frame_size); if (ret != frame->frame_size) { av_free_packet(pkt); |