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lavf: add seek2any to allow forcing seeking to non keyframes via AVOptions

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-08-06 01:25:57 +02:00
parent 7c00d853a6
commit a8e748eee5
3 changed files with 11 additions and 0 deletions
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7
libavformat/avformat.h
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@ -1203,6 +1203,13 @@ typedef struct AVFormatContext {
*/
unsigned int correct_ts_overflow;
/**
* Force seeking to any (also non key) frames.
* - encoding: unused
* - decoding: Set by user via AVOPtions (NO direct access)
*/
int seek2any;
/*****************************************************************
* All fields below this line are not part of the public API. They
* may not be used outside of libavformat and can be changed and

1
libavformat/options_table.h
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@ -48,6 +48,7 @@ static const AVOption options[]={
{"keepside", "dont merge side data", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_KEEP_SIDE_DATA }, INT_MIN, INT_MAX, D, "fflags"},
{"latm", "enable RTP MP4A-LATM payload", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_MP4A_LATM }, INT_MIN, INT_MAX, E, "fflags"},
{"nobuffer", "reduce the latency introduced by optional buffering", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_NOBUFFER }, 0, INT_MAX, D, "fflags"},
{"seek2any", "forces seeking to enable seek to any mode", OFFSET(seek2any), AV_OPT_TYPE_INT, {.i64 = 0 }, 0, 1, D},
{"analyzeduration", "specify how many microseconds are analyzed to probe the input", OFFSET(max_analyze_duration), AV_OPT_TYPE_INT, {.i64 = 5*AV_TIME_BASE }, 0, INT_MAX, D},
{"cryptokey", "decryption key", OFFSET(key), AV_OPT_TYPE_BINARY, {.dbl = 0}, 0, 0, D},
{"indexmem", "max memory used for timestamp index (per stream)", OFFSET(max_index_size), AV_OPT_TYPE_INT, {.i64 = 1<<20 }, 0, INT_MAX, D},

3
libavformat/utils.c
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@ -2092,6 +2092,9 @@ int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int
if(min_ts > ts || max_ts < ts)
return -1;
if(s->seek2any>0)
flags |= AVSEEK_FLAG_ANY;
if (s->iformat->read_seek2) {
int ret;
ff_read_frame_flush(s);