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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-03-03 14:32:16 +02:00
FFmpeg/libavformat
Zhao Zhili 811f2f91da avformat/mov: discard data streams with all zero sample_delta
Streams with all zero sample_delta in 'stts' have all zero dts.
They have higher chance be chose by mov_find_next_sample(), which
leads to seek again and again.

For example, GoPro created a 'GoPro SOS' stream:
  Stream #0:4[0x5](eng): Data: none (fdsc / 0x63736466), 13 kb/s (default)
    Metadata:
      creation_time   : 2022-06-21T08:49:19.000000Z
      handler_name    : GoPro SOS

With 'ffprobe -show_frames http://example.com/gopro.mp4', ffprobe
blocks until all samples in 'GoPro SOS' stream are consumed first.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
2022-07-18 11:06:17 +08:00
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