On Thu, Dec 07, 2017 at 10:23:15PM -0600, Rodger Combs wrote:
> ---
> libavformat/avformat.h | 1 +
> libavformat/options_table.h | 1 +
> libavformat/utils.c | 8 ++++++++
> 3 files changed, 10 insertions(+)
>
> diff --git a/libavformat/avformat.h b/libavformat/avformat.h
> index 4f2798a871..d10d583dff 100644
> --- a/libavformat/avformat.h
> +++ b/libavformat/avformat.h
> @@ -1450,6 +1450,7 @@ typedef struct AVFormatContext {
> #define AVFMT_FLAG_FAST_SEEK 0x80000 ///< Enable fast, but inaccurate
> seeks for some formats
> #define AVFMT_FLAG_SHORTEST 0x100000 ///< Stop muxing when the shortest
> stream stops.
> #define AVFMT_FLAG_AUTO_BSF 0x200000 ///< Add bitstream filters as
> requested by the muxer
> +#define AVFMT_FLAG_DISCARD_CORRUPT_TS 0x400000 ///< Discard timestamps of
> frames marked corrupt
>
> /**
> * Maximum size of the data read from input for determining
> diff --git a/libavformat/options_table.h b/libavformat/options_table.h
> index b8fa47c6fd..515574d3e0 100644
> --- a/libavformat/options_table.h
> +++ b/libavformat/options_table.h
> @@ -58,6 +58,7 @@ static const AVOption avformat_options[] = {
> {"bitexact", "do not write random/volatile data", 0, AV_OPT_TYPE_CONST, {
> .i64 = AVFMT_FLAG_BITEXACT }, 0, 0, E, "fflags" },
> {"shortest", "stop muxing with the shortest stream", 0, AV_OPT_TYPE_CONST, {
> .i64 = AVFMT_FLAG_SHORTEST }, 0, 0, E, "fflags" },
> {"autobsf", "add needed bsfs automatically", 0, AV_OPT_TYPE_CONST, { .i64 =
> AVFMT_FLAG_AUTO_BSF }, 0, 0, E, "fflags" },
> +{"discardcorruptts", "discard timestamps on corrupted frames", 0,
> AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_DISCARD_CORRUPT_TS }, 0, 0, E,
> "fflags" },
> {"analyzeduration", "specify how many microseconds are analyzed to probe the
> input", OFFSET(max_analyze_duration), AV_OPT_TYPE_INT64, {.i64 = 0 }, 0,
> INT64_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},
> diff --git a/libavformat/utils.c b/libavformat/utils.c
> index 84e49208b8..98af941e9f 100644
> --- a/libavformat/utils.c
> +++ b/libavformat/utils.c
> @@ -873,6 +873,14 @@ int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
> st->cur_dts = wrap_timestamp(st, st->cur_dts);
> }
>
> + if ((s->flags & AVFMT_FLAG_DISCARD_CORRUPT_TS) &&
> + (pkt->flags & AV_PKT_FLAG_CORRUPT)) {
> + pkt->pts = pkt->dts = AV_NOPTS_VALUE;
> + av_log(s, AV_LOG_WARNING,
> + "Discarded timestamp on corrupted packet (stream = %d)\n",
> + pkt->stream_index);
> + }
how many of the cases that set AV_PKT_FLAG_CORRUPT can even be due to
the timestamp ?
We set this for truncated / EOF cases and all kinds of stuff that
are known to be unrelated to the timestamps
[...]
--
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
The real ebay dictionary, page 1
"Used only once" - "Some unspecified defect prevented a second use"
"In good condition" - "Can be repaird by experienced expert"
"As is" - "You wouldnt want it even if you were payed for it, if you knew ..."
signature.asc
Description: Digital signature
_______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
