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• convert f4v to mp4 with ffmpeg

  9 août 2013, par Winnie Oldright

  Trying to convert f4v to mp4 with ffmpeg

  This file

  FFmpeg :

  ffmpeg -i input.f4v -vcodec copy -acodec copy output.mp4

  In output i have black screen in video and no sound but track seconds are incrementing properly.

  What i'm doing wrong ? Or maybe i need mpg or some other file type in out put (output file type should supports in android).

• Does the H.264 standard allow separate luma and chroma qp control in Baseline Profile ?

  28 août 2013, par Bhaskar Dey

  Although the wikipedia article states that separate luma and chroma QP is only supported in High profiles, I didn't find any supporting reference. At least, Rec. ITU-T H.264 (04/2013) section A.2.1 does not mention any such limitation for the Baseline Profile.

  Any comment in this regard would be of great help.

• Does H.264 standard allow separate luma and chroma QP control in Baseline Profile ?

  28 août 2013, par Bhaskar Dey

  Although the wikipedia article states that separate luma and chroma QP (quantization parameter) is only supported in High profiles, I didn't find any supporting reference. At least, Rec. ITU-T H.264 (04/2013) section A.2.1 does not mention any such limitation for the Baseline Profile.

  Any comment in this regard would be of great help.