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avformat/flvenc: Allow muxing video codecs which are not explicitly supported by the muxer

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This allows stream copying video codecs before they are explicitly
supported. The same feature was in the past useful for audio codecs
in flv

This partly reverts the changes from 735ab7c5e0

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-03-06 02:51:14 +01:00
parent 797ba4d53b
commit 76f4b11780
1 changed files with 11 additions and 2 deletions
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13
libavformat/flvenc.c
View file

@ -336,6 +336,13 @@ static int unsupported_codec(AVFormatContext *s,
return AVERROR(ENOSYS);
}
static int check_video_codec_tag(int codec_tag) {
if (codec_tag <= 0 || codec_tag > 15) {
return AVERROR(ENOSYS);
} else
return 0;
}
static int flv_write_header(AVFormatContext *s)
{
int i;
@ -358,7 +365,7 @@ static int flv_write_header(AVFormatContext *s)
return AVERROR(EINVAL);
}
flv->video_enc = enc;
if (!ff_codec_get_tag(flv_video_codec_ids, enc->codec_id))
if (check_video_codec_tag(enc->codec_tag) < 0)
return unsupported_codec(s, "Video", enc->codec_id);
if (enc->codec_id == AV_CODEC_ID_MPEG4 ||
@ -542,7 +549,9 @@ static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
case AVMEDIA_TYPE_VIDEO:
avio_w8(pb, FLV_TAG_TYPE_VIDEO);
flags = ff_codec_get_tag(flv_video_codec_ids, enc->codec_id);
flags = enc->codec_tag;
if (check_video_codec_tag(flags) < 0)
return unsupported_codec(s, "Video", enc->codec_id);
flags |= pkt->flags & AV_PKT_FLAG_KEY ? FLV_FRAME_KEY : FLV_FRAME_INTER;
break;