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2 votes

Decoding H.264/AVC Frames in MP4: What's the Output Format?

"would the output data be in a specific format, such as JPEG (identified by the FF D8 marker), or would it be raw bytes representing pixel data?" An H.264 decoder should decode to raw YUV ...
damian101's user avatar
1 vote

ffmpeg how to change audio tbn

There's no such option for audio in MP4. MKV uses a fixed timescale of 1000 which is why audio has that tbn. In MP4, ffmpeg will set it to the sample rate. The latter is precise. Notice the timestamps ...
Gyan's user avatar
  • 32.6k
1 vote

What are the apparently extra files on a DVD, and what gets lost when the VOB file is converted to MP4?

DVDs are usually encoded using an MPEG 2 codec. This is an older codec than h264, and encodes at a higher bitrate (and also encodes video differently) to a low bitrate mp4 encoder which uses an h264 ...
tomh's user avatar
  • 7,585
1 vote

Do mobile phones really record in these odd framerates?

Yes, most phones record variable frame rate (VFR). Discussion: To check, see
qwr's user avatar
  • 226
1 vote

Widely compatible video format with lossless audio

To my knowledge, the only lossless audio format with really wide compatibility is plain old linear PCM. As container format, MP4 is the most wide-spread.
soundflix's user avatar
  • 111
1 vote

Howto Repaire or fix the duration of a mp4 video

I also faced with this issue and I had to add -vcodec libx264 in addition to -an. Cutting a video: ffmpeg -ss {sec2time(start)} -to {sec2time(end)} -i {video_path} -c copy -vcodec libx264 -an {...
Yunus Emre's user avatar

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