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Merge commit '7040e479a1530b2eda4b89a182d5eb50a77bd907'

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* commit '7040e479a1530b2eda4b89a182d5eb50a77bd907':
  idcin: allow seeking back to the first packet
  idcin: set AV_PKT_FLAG_KEY for video packets with a palette

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-01-10 12:45:42 +01:00
commit a0dbe2a58c
1 changed files with 22 additions and 0 deletions
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22
libavformat/idcin.c
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@ -88,6 +88,7 @@ typedef struct IdcinDemuxContext {
int current_audio_chunk;
int next_chunk_is_video;
int audio_present;
int64_t first_pkt_pos;
} IdcinDemuxContext;
static int idcin_probe(AVProbeData *p)
@ -230,6 +231,7 @@ static int idcin_read_header(AVFormatContext *s)
}
idcin->next_chunk_is_video = 1;
idcin->first_pkt_pos = avio_tell(s->pb);
return 0;
}
@ -294,6 +296,7 @@ static int idcin_read_packet(AVFormatContext *s,
if (!pal)
return AVERROR(ENOMEM);
memcpy(pal, palette, AVPALETTE_SIZE);
pkt->flags |= AV_PKT_FLAG_KEY;
}
pkt->stream_index = idcin->video_stream_index;
pkt->duration = 1;
@ -318,6 +321,23 @@ static int idcin_read_packet(AVFormatContext *s,
return ret;
}
static int idcin_read_seek(AVFormatContext *s, int stream_index,
int64_t timestamp, int flags)
{
IdcinDemuxContext *idcin = s->priv_data;
if (idcin->first_pkt_pos > 0) {
int ret = avio_seek(s->pb, idcin->first_pkt_pos, SEEK_SET);
if (ret < 0)
return ret;
ff_update_cur_dts(s, s->streams[idcin->video_stream_index], 0);
idcin->next_chunk_is_video = 1;
idcin->current_audio_chunk = 0;
return 0;
}
return -1;
}
AVInputFormat ff_idcin_demuxer = {
.name = "idcin",
.long_name = NULL_IF_CONFIG_SMALL("id Cinematic"),
@ -325,4 +345,6 @@ AVInputFormat ff_idcin_demuxer = {
.read_probe = idcin_probe,
.read_header = idcin_read_header,
.read_packet = idcin_read_packet,
.read_seek = idcin_read_seek,
.flags = AVFMT_NO_BYTE_SEEK,
};