cinelerra-5.1/thirdparty/src/ffmpeg-5.1.patch3

   1 --- a/libavformat/avformat.h
   2 +++ b/libavformat/avformat.h
   3 @@ -499,6 +499,9 @@
   4                                          The user or muxer can override this through
   5                                          AVFormatContext.avoid_negative_ts
   6                                          */
   7 +#define AVFMT_SEEK_NOSTREAMS  0x80000 /**< Stream index ignored by seek,
   8 +                                           or some streams fail to seek
   9 +                                           */
  10
  11  #define AVFMT_SEEK_TO_PTS   0x4000000 /**< Seeking is based on PTS */
  12
  13 @@ -670,7 +673,8 @@
  14      /**
  15       * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS,
  16       * AVFMT_NOTIMESTAMPS, AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH,
  17 -     * AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK, AVFMT_SEEK_TO_PTS.
  18 +     * AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK, AVFMT_SEEK_TO_PTS,
  19 +     * AVFMT_SEEK_NOSTREAMS
  20       */
  21      int flags;
  22
  23 --- a/libavformat/dv.c
  24 +++ b/libavformat/dv.c
  25 @@ -640,6 +640,7 @@
  26  const AVInputFormat ff_dv_demuxer = {
  27      .name           = "dv",
  28      .long_name      = NULL_IF_CONFIG_SMALL("DV (Digital Video)"),
  29 +    .flags          = AVFMT_SEEK_NOSTREAMS,
  30      .priv_data_size = sizeof(RawDVContext),
  31      .read_probe     = dv_probe,
  32      .read_header    = dv_read_header,
  33 --- a/libavformat/matroskadec.c
  34 +++ b/libavformat/matroskadec.c
  35 @@ -4427,6 +4427,7 @@
  36  const AVInputFormat ff_webm_dash_manifest_demuxer = {
  37      .name           = "webm_dash_manifest",
  38      .long_name      = NULL_IF_CONFIG_SMALL("WebM DASH Manifest"),
  39 +    .flags          = AVFMT_SEEK_NOSTREAMS,
  40      .priv_class     = &webm_dash_class,
  41      .priv_data_size = sizeof(MatroskaDemuxContext),
  42      .flags_internal = FF_FMT_INIT_CLEANUP,
  43 @@ -4439,6 +4440,7 @@
  44  const AVInputFormat ff_matroska_demuxer = {
  45      .name           = "matroska,webm",
  46      .long_name      = NULL_IF_CONFIG_SMALL("Matroska / WebM"),
  47 +    .flags          = AVFMT_SEEK_NOSTREAMS,
  48      .extensions     = "mkv,mk3d,mka,mks,webm",
  49      .priv_data_size = sizeof(MatroskaDemuxContext),
  50      .flags_internal = FF_FMT_INIT_CLEANUP,
  51 --- a/libavformat/seek.c
  52 +++ b/libavformat/seek.c
  53 @@ -600,6 +600,13 @@
  54          return seek_frame_byte(s, stream_index, timestamp, flags);
  55      }
  56
  57 +    if (stream_index != -1 && (s->iformat->flags & AVFMT_SEEK_NOSTREAMS)) {
  58 +            timestamp = av_rescale_q(timestamp,
  59 +                    s->streams[stream_index]->time_base,
  60 +                    AV_TIME_BASE_Q);
  61 +            stream_index = -1;
  62 +    }
  63 +
  64      if (stream_index < 0) {
  65          stream_index = av_find_default_stream_index(s);
  66          if (stream_index < 0)