Hi there, I'm a bit newbie to ffmpeg API and still didn't get a grasp where to look in ffmpeg code for some answers. I hope for some guideline/explanation. If this is more suitable for ffmpeg-user mailing list, just let me know.
Case: Playing back a video (using ffmpeg API of course), a h264 elementary stream. It is possible, that every frame gets additional SEI picture timing message in that stream. FFMPEG is compiled without "--enable-gpl" and without "--enable-nonfree" flags (so it's not using x264 in my case). Reading frames and controlling their displaying using AVFrame best_effort_timestamp value. Question: Is FFMPEG taking into account SEI picture timing message contents when establishing timestamp (pts or best effort timestamp) when my app reads decoded AVFrame (basically looking into pts and best_effort_timestamp fields)? If yes - is clockTimestamp calculated from SEI picture timing overruling/overwriting any other values or is it more complicated? Where should I look to understand how SEI picture timing message influences timestamp (and which one in terms of AVFrame fields) when h264/es frame gets decoded via ffmpeg? Best Regards Michał
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