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Merge commit '1384df641994bf3d6cb51084290aa94752737bae'

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* commit '1384df641994bf3d6cb51084290aa94752737bae':
  lavf: Add an option for avoiding negative timestamps

Conflicts:
	libavformat/avformat.h
	libavformat/mux.c
	libavformat/options_table.h
	libavformat/version.h

See: 3ba0dab76a
See: a89c012531
Merged-by: Michael Niedermayer <michaelni@gmx.at>
pull/94/head
Michael Niedermayer 10 years ago
parent ed736890d6 1384df6419
commit 66e49ff3b9
5 changed files with 25 additions and 19 deletions
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  1. 3
      doc/APIchanges
  2. 23
      libavformat/avformat.h
  3. 6
      libavformat/mux.c
  4. 10
      libavformat/options_table.h
  5. 2
      libavformat/version.h

3
doc/APIchanges
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@ -899,6 +899,9 @@ lavd 54.4.100 / 54.0.0, lavfi 3.5.0
avresample_read() are now uint8_t** instead of void**.
Libavresample is now stable.
2012-09-26 - 3ba0dab7 / 1384df64 - lavf 54.29.101 / 56.06.3 - avformat.h
Add AVFormatContext.avoid_negative_ts.
2012-09-24 - 46a3595 / a42aada - lavc 54.59.100 / 54.28.0 - avcodec.h
Add avcodec_free_frame(). This function must now
be used for freeing an AVFrame.

23
libavformat/avformat.h
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@ -1475,6 +1475,18 @@ typedef struct AVFormatContext {
*/
int max_ts_probe;
/**
* Avoid negative timestamps during muxing.
* Any value of the AVFMT_AVOID_NEG_TS_* constants.
* Note, this only works when using av_interleaved_write_frame. (interleave_packet_per_dts is in use)
* - muxing: Set by user
* - demuxing: unused
*/
int avoid_negative_ts;
#define AVFMT_AVOID_NEG_TS_AUTO -1 ///< Enabled when required by target format
#define AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE 1 ///< Shift timestamps so they are non negative
#define AVFMT_AVOID_NEG_TS_MAKE_ZERO 2 ///< Shift timestamps so that they start at 0
/**
* Transport stream id.
@ -1514,17 +1526,6 @@ typedef struct AVFormatContext {
*/
int use_wallclock_as_timestamps;
/**
* Avoid negative timestamps during muxing.
* 0 -> allow negative timestamps
* 1 -> avoid negative timestamps
* -1 -> choose automatically (default)
* Note, this only works when interleave_packet_per_dts is in use.
* - encoding: Set by user via AVOptions (NO direct access)
* - decoding: unused
*/
int avoid_negative_ts;
/**
* avio flags, used to force AVIO_FLAG_DIRECT.
* - encoding: unused

6
libavformat/mux.c
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@ -419,10 +419,11 @@ int avformat_write_header(AVFormatContext *s, AVDictionary **options)
return ret;
if (s->avoid_negative_ts < 0) {
av_assert2(s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO);
if (s->oformat->flags & (AVFMT_TS_NEGATIVE | AVFMT_NOTIMESTAMPS)) {
s->avoid_negative_ts = 0;
} else
s->avoid_negative_ts = 1;
s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE;
}
return 0;
@ -556,7 +557,8 @@ static int write_packet(AVFormatContext *s, AVPacket *pkt)
AVStream *st = s->streams[pkt->stream_index];
int64_t offset = st->mux_ts_offset;
if ((pkt->dts < 0 || s->avoid_negative_ts == 2) && pkt->dts != AV_NOPTS_VALUE && !s->offset) {
if (!s->offset && pkt->dts != AV_NOPTS_VALUE &&
(pkt->dts < 0 || s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO)) {
s->offset = -pkt->dts;
s->offset_timebase = st->time_base;
}

10
libavformat/options_table.h
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@ -78,11 +78,6 @@ static const AVOption avformat_options[] = {
{"compliant", "consider all spec non compliancies as errors", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_COMPLIANT }, INT_MIN, INT_MAX, D, "err_detect"},
{"aggressive", "consider things that a sane encoder shouldn't do as an error", 0, AV_OPT_TYPE_CONST, {.i64 = AV_EF_AGGRESSIVE }, INT_MIN, INT_MAX, D, "err_detect"},
{"use_wallclock_as_timestamps", "use wallclock as timestamps", OFFSET(use_wallclock_as_timestamps), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX-1, D},
{"avoid_negative_ts", "shift timestamps so they start at 0", OFFSET(avoid_negative_ts), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 2, E, "avoid_negative_ts"},
{"auto", "enabled when required by target format", 0, AV_OPT_TYPE_CONST, {.i64 = -1 }, INT_MIN, INT_MAX, E, "avoid_negative_ts"},
{"disabled", "do not change timestamps", 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, INT_MIN, INT_MAX, E, "avoid_negative_ts"},
{"make_zero", "shift timestamps so they start at 0", 0, AV_OPT_TYPE_CONST, {.i64 = 2 }, INT_MIN, INT_MAX, E, "avoid_negative_ts"},
{"make_non_negative", "shift timestamps so they are non negative", 0, AV_OPT_TYPE_CONST, {.i64 = 1 }, INT_MIN, INT_MAX, E, "avoid_negative_ts"},
{"skip_initial_bytes", "set number of bytes to skip before reading header and frames", OFFSET(skip_initial_bytes), AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX-1, D},
{"correct_ts_overflow", "correct single timestamp overflows", OFFSET(correct_ts_overflow), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, D},
{"flush_packets", "enable flushing of the I/O context after each packet", OFFSET(flush_packets), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, E},
@ -96,6 +91,11 @@ static const AVOption avformat_options[] = {
{"unofficial", "allow unofficial extensions", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_UNOFFICIAL }, INT_MIN, INT_MAX, D|E, "strict"},
{"experimental", "allow non-standardized experimental variants", 0, AV_OPT_TYPE_CONST, {.i64 = FF_COMPLIANCE_EXPERIMENTAL }, INT_MIN, INT_MAX, D|E, "strict"},
{"max_ts_probe", "maximum number of packets to read while waiting for the first timestamp", OFFSET(max_ts_probe), AV_OPT_TYPE_INT, { .i64 = 50 }, 0, INT_MAX, D },
{"avoid_negative_ts", "shift timestamps so they start at 0", OFFSET(avoid_negative_ts), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 2, E, "avoid_negative_ts"},
{"auto", "enabled when required by target format", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_AVOID_NEG_TS_AUTO }, INT_MIN, INT_MAX, E, "avoid_negative_ts"},
{"disabled", "do not change timestamps", 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, INT_MIN, INT_MAX, E, "avoid_negative_ts"},
{"make_non_negative", "shift timestamps so they are non negative", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE }, INT_MIN, INT_MAX, E, "avoid_negative_ts"},
{"make_zero", "shift timestamps so they start at 0", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_AVOID_NEG_TS_MAKE_ZERO }, INT_MIN, INT_MAX, E, "avoid_negative_ts"},
{"dump_separator", "set information dump field separator", OFFSET(dump_separator), AV_OPT_TYPE_STRING, {.str = ", "}, CHAR_MIN, CHAR_MAX, D|E},
{"codec_whitelist", "List of decoders that are allowed to be used", OFFSET(codec_whitelist), AV_OPT_TYPE_STRING, { .str = NULL }, CHAR_MIN, CHAR_MAX, D },
{"format_whitelist", "List of demuxers that are allowed to be used", OFFSET(format_whitelist), AV_OPT_TYPE_STRING, { .str = NULL }, CHAR_MIN, CHAR_MAX, D },

2
libavformat/version.h
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@ -31,7 +31,7 @@
#define LIBAVFORMAT_VERSION_MAJOR 56
#define LIBAVFORMAT_VERSION_MINOR 12
#define LIBAVFORMAT_VERSION_MICRO 101
#define LIBAVFORMAT_VERSION_MICRO 102
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \

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