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Code Issues Releases Activity

lavf/assenc: handle extra sections after Events

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Rodger Combs 2015-04-04 05:31:22 -05:00 committed by Michael Niedermayer
parent e224aa4191
commit 55a1d75bf7
1 changed files with 26 additions and 2 deletions
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28
libavformat/assenc.c
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@ -40,6 +40,8 @@ typedef struct ASSContext {
int cache_size;
int ssa_mode;
int ignore_readorder;
uint8_t *trailer;
size_t trailer_size;
} ASSContext;
static int write_header(AVFormatContext *s)
@ -55,8 +57,23 @@ static int write_header(AVFormatContext *s)
ass->write_ts = avctx->codec_id == AV_CODEC_ID_ASS;
avpriv_set_pts_info(s->streams[0], 64, 1, 100);
if (avctx->extradata_size > 0) {
avio_write(s->pb, avctx->extradata, avctx->extradata_size);
if (avctx->extradata[avctx->extradata_size - 1] != '\n')
size_t header_size = avctx->extradata_size;
uint8_t *trailer = strstr(avctx->extradata, "\n[Events]");
if (trailer)
trailer = strstr(trailer, "Format:");
if (trailer)
trailer = strstr(trailer, "\n");
if (trailer++) {
header_size = (trailer - avctx->extradata);
ass->trailer_size = avctx->extradata_size - header_size;
if (ass->trailer_size)
ass->trailer = trailer;
}
avio_write(s->pb, avctx->extradata, header_size);
if (avctx->extradata[header_size - 1] != '\n')
avio_write(s->pb, "\r\n", 2);
ass->ssa_mode = !strstr(avctx->extradata, "\n[V4+ Styles]");
if (!strstr(avctx->extradata, "\n[Events]"))
@ -192,7 +209,14 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
static int write_trailer(AVFormatContext *s)
{
ASSContext *ass = s->priv_data;
purge_dialogues(s, 1);
if (ass->trailer) {
avio_write(s->pb, ass->trailer, ass->trailer_size);
}
return 0;
}