[FFmpeg-devel] [Internet]Re: [PATCH v2 5/7] avcodec/mediacodecenc: remove the strategy to create DTS
"zhilizhao(赵志立)"
quinkblack at foxmail.com
Wed Jan 4 13:31:05 EET 2023
> On Jan 4, 2023, at 18:16, Anton Khirnov <anton at khirnov.net> wrote:
>
> Does this mean the encoder will produce packets with dts=AV_NOPTS_VALUE?
MediaCodec should not encode B frames by default, so dts = pts by default.
B frames can be enabled explicitly, in that case dts is AV_NOPTS_VALUE.
Android system’s MP4 muxer works very hard to recreate dts to workaround
the limitation of MediaCodec API. It create ‘valid’ but almost useless
files with a lot of jitters.
>
> --
> Anton Khirnov
>
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