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avformat/flvenc: add no_metadata to flvflags

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some flv have no metadata,
ffmpeg will same with the source flv stream.

Signed-off-by: Steven Liu <lingjiujianke@gmail.com>
This commit is contained in:
Steven Liu 2016-11-21 20:26:11 +08:00
parent 0b8df0ce48
commit d316b21dba
2 changed files with 10 additions and 1 deletions
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3
doc/muxers.texi
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@ -148,6 +148,9 @@ Place AAC sequence header based on audio stream data.
@item no_sequence_end
Disable sequence end tag.
@item no_metadata
Disable metadata tag.
@item add_keyframe_index
Used to facilitate seeking; particularly for HTTP pseudo streaming.
@end table

8
libavformat/flvenc.c
View File

@ -67,6 +67,7 @@ typedef enum {
FLV_AAC_SEQ_HEADER_DETECT = (1 << 0),
FLV_NO_SEQUENCE_END = (1 << 1),
FLV_ADD_KEYFRAME_INDEX = (1 << 2),
FLV_NO_METADATA = (1 << 3),
} FLVFlags;
typedef struct FLVFileposition {
@ -744,7 +745,11 @@ static int flv_write_header(AVFormatContext *s)
flv->reserved = 5;
}
write_metadata(s, 0);
if (flv->flags & FLV_NO_METADATA) {
pb->seekable = 0;
} else {
write_metadata(s, 0);
}
for (i = 0; i < s->nb_streams; i++) {
flv_write_codec_header(s, s->streams[i]->codecpar);
@ -1055,6 +1060,7 @@ static const AVOption options[] = {
{ "flvflags", "FLV muxer flags", offsetof(FLVContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },
{ "aac_seq_header_detect", "Put AAC sequence header based on stream data", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_AAC_SEQ_HEADER_DETECT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },
{ "no_sequence_end", "disable sequence end for FLV", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_NO_SEQUENCE_END}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },
{ "no_metadata", "disable metadata for FLV", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_NO_METADATA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },
{ "add_keyframe_index", "Add keyframe index metadata", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_ADD_KEYFRAME_INDEX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" },
{ NULL },
};