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How to deal with non monotonous DTS in FFmpeg?
When I use ffmpeg to remux some recorded video (can be TS, MP4 or MKV) and get the non monotonous dts in output stream – timestamps etc etc error, the resulting video either appears to have audio only or plays jerkily. The only way I have found of reliably dealing with this is to use AviDemux.
What is the output time for non monotonous DTS?
This may result in incorrect timestamps in the output file. [mp4 @ 0x7f897a01bc00] Non-monotonous DTS in output stream 0:0; previous: 598063, current: 468444; changing to 598064.
Are there any non monotonous DTS on concat?
This may result in incorrect timestamps in the output file. frame= 1472 fps=0.0 q=-1.0 Lsize= 5825kB time=00:00:49.04 bitrate= 973.0kbits/s video:4903kB audio:877kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.776358% Content of mylist.txt
Can a MP4 file be used in FFmpeg?
With Copy settings for both audio and video and selecting MP4V2 Muxer it is possible,, under the Configure option to select Optimize For Streaming. The resulting MP4 file can now be used in ffmpeg without generating error messages. Trust this is of use.
How to determine the output format of FFmpeg?
With ffmpeg, you can select the output format to which the audio and video frames are encoded before computing the CRC for each packet by specifying the audio and video codec. For example, to compute the CRC of each decoded input audio frame converted to PCM unsigned 8-bit and of each decoded input video frame converted to MPEG-2 video, use the
How are demuxers and stream specifiers defined in FFmpeg?
The exact semantics of stream specifiers is defined by the avformat_match_stream_specifier () function declared in the libavformat/avformat.h header and documented in the (ffmpeg)Stream specifiers section in the ffmpeg (1) manual . Demuxers are configured elements in FFmpeg that can read the multimedia streams from a particular type of file.
When to use wallclock or shift timestamps in FFmpeg?
Use wallclock as timestamps if set to 1. Default is 0. Shift timestamps to make them non-negative. Also note that this affects only leading negative timestamps, and not non-monotonic negative timestamps. Shift timestamps so that the first timestamp is 0.