95a8f149db
Have specialized AVCodecContext initialization
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A common initialization procedure is too restrictive, and we end up setting up audio configuration for video decoding and vice-versa.
2018-07-25 06:22:41 +08:00
4d1ef4248d
Let FFmpeg manage its own memory allocation
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The API to override memory allocation was deprecated years ago and was completely removed in libavcodec 57.
2018-07-25 06:22:39 +08:00
6f315285f9
Fix VP9 decoding with recent version of libav.
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Recent libav do not require a codec parser to decode VP9.
2018-07-25 06:21:46 +08:00
eb5ceada68
Parse raw data to identify single frames before decoding
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A VP9 or VP9 packet may contains alternate frames. They need to be fed separately to the FFmpeg decoder.
2018-07-25 06:21:40 +08:00
bfafa7aaa9
Properly assign the decoded sample duration
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We default to the previous logic if for some unlikely condition we couldn't find the frame's duration (using the last input frame's duration).
2018-07-25 06:21:14 +08:00
0a7eb3d9c0
Use LibAV/FFmpeg logic to detect invalid pts
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The logic was extracted from LibAV cmdutils.c. FFmpeg provides an API for that (av_frame_get_best_effort_timestamp()) unfortunately this isn't provided by LibAV.
So copy the logic instead in order to keep compatibility with the two forks.
2018-07-25 06:21:09 +08:00
8b514b3576
Revert "Use demuxed dimensions to determine picture size and offset"
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Causes build bustage. Also doesn't apply to H.264 video (which is currently our only use for FFmpeg).
2018-07-25 06:20:33 +08:00
c09f5b9f68
Use demuxed dimensions to determine picture size and offset
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Don't assume it always has an offset of (0,0)
2018-07-25 06:20:23 +08:00
b20af88870
Work around bug in some versions of LibAV
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When multi-threading decoding is enabled; the frames dimensions were incorrectly set with some versions of LibAV.
2018-07-25 01:31:40 +08:00
2c5c4a6d69
Fix pts calculations in older LibAV versions
2018-07-25 01:31:34 +08:00
538539f5c3
Move PlatformDecoderModule outside fmp4
2018-07-25 01:29:11 +08:00
trav90