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demux_lavf: assume h264/hevc raw streams have no timestamps 

There are obscure methods to add timestamps to such streams, but assume
they're unused.
This commit is contained in:
wm4 2015-03-20 22:10:00 +01:00
parent fe0c37b007
commit 23a3fa8e90
1 changed files with 12 additions and 4 deletions
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16
demux/demux_lavf.c
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@ -99,6 +99,7 @@ struct format_hack {
const char *mime_type;
int probescore;
float analyzeduration;
unsigned int if_flags; // additional AVInputFormat.flags flags
bool max_probe : 1; // use probescore only if max. probe size reached
bool ignore : 1; // blacklisted
bool no_stream : 1; // do not wrap struct stream as AVIOContext
@ -127,6 +128,10 @@ static const struct format_hack format_hacks[] = {
{"mpeg", .use_stream_ids = true},
{"mpegts", .use_stream_ids = true},
// In theory, such streams might contain timestamps, but virtually none do.
{"h264", .if_flags = AVFMT_NOTIMESTAMPS },
{"hevc", .if_flags = AVFMT_NOTIMESTAMPS },
TEXTSUB("aqtitle"), TEXTSUB("ass"), TEXTSUB("jacosub"), TEXTSUB("microdvd"),
TEXTSUB("mpl2"), TEXTSUB("mpsub"), TEXTSUB("pjs"), TEXTSUB("realtext"),
TEXTSUB("sami"), TEXTSUB("srt"), TEXTSUB("stl"), TEXTSUB("subviewer"),
@ -148,6 +153,7 @@ typedef struct lavf_priv {
char *filename;
struct format_hack format_hack;
AVInputFormat *avif;
int avif_flags;
AVFormatContext *avfc;
AVIOContext *pb;
int64_t last_pts;
@ -384,6 +390,8 @@ static int lavf_check_file(demuxer_t *demuxer, enum demux_check check)
priv->format_hack.image_format = true;
}
priv->avif_flags = priv->avif->flags | priv->format_hack.if_flags;
demuxer->filetype = priv->avif->name;
return 0;
@ -617,7 +625,7 @@ static void handle_stream(demuxer_t *demuxer, int i)
sh->hls_bitrate = dict_get_decimal(st->metadata, "variant_bitrate", 0);
if (!sh->title && sh->hls_bitrate > 0)
sh->title = talloc_asprintf(sh, "bitrate %d", sh->hls_bitrate);
sh->missing_timestamps = !!(priv->avif->flags & AVFMT_NOTIMESTAMPS);
sh->missing_timestamps = !!(priv->avif_flags & AVFMT_NOTIMESTAMPS);
}
select_tracks(demuxer, i);
@ -711,7 +719,7 @@ static int demux_open_lavf(demuxer_t *demuxer, enum demux_check check)
AVDictionary *dopts = NULL;
if ((priv->avif->flags & AVFMT_NOFILE) ||
if ((priv->avif_flags & AVFMT_NOFILE) ||
demuxer->stream->type == STREAMTYPE_AVDEVICE ||
priv->format_hack.no_stream)
{
@ -795,7 +803,7 @@ static int demux_open_lavf(demuxer_t *demuxer, enum demux_check check)
update_metadata(demuxer, NULL);
demuxer->ts_resets_possible =
priv->avif->flags & (AVFMT_TS_DISCONT | AVFMT_NOTIMESTAMPS);
priv->avif_flags & (AVFMT_TS_DISCONT | AVFMT_NOTIMESTAMPS);
demuxer->start_time = priv->avfc->start_time == AV_NOPTS_VALUE ?
0 : (double)priv->avfc->start_time / AV_TIME_BASE;
@ -883,7 +891,7 @@ static void demux_seek_lavf(demuxer_t *demuxer, double rel_seek_secs, int flags)
int64_t end = 0;
stream_control(s, STREAM_CTRL_GET_SIZE, &end);
if (end > 0 && demuxer->ts_resets_possible &&
!(priv->avif->flags & AVFMT_NO_BYTE_SEEK))
!(priv->avif_flags & AVFMT_NO_BYTE_SEEK))
{
avsflags |= AVSEEK_FLAG_BYTE;
priv->last_pts = end * rel_seek_secs;