Hi, when i use the lame encoder to transcode a 320 bps mp3 to VBR, I can see, that some percentage of frames is encoded to 320 bps frames, so these frames seem to contain important data :
$ lame -V1 in.mp3 out.mp3 LAME 3.100 64bits (http://lame.sf.net) Using polyphase lowpass filter, transition band: 19383 Hz - 19916 Hz Encoding in.mp3 to out.mp3 Encoding as 44.1 kHz j-stereo MPEG-1 Layer III VBR(q=1) Frame | CPU time/estim | REAL time/estim | play/CPU | ETA 10104/10104 (100%)| 0:04/ 0:04| 0:04/ 0:04| 54.411x| 0:00 32 [ 29] * 40 [ 0] 48 [ 0] 56 [ 0] 64 [ 0] 80 [ 0] 96 [ 0] 112 [ 2] % 128 [ 0] 160 [ 0] 192 [ 2473] %%%%%%%%%%%%%%%%%%%%%%%%%%%%* 224 [ 5892] %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 256 [ 1506] %%%%%%%%%%%%%%%%%* 320 [ 202] %%% ------------------------------------------------------------------------------- kbps LR MS % long switch short % 222.3 98.3 1.7 95.7 2.3 2.0 Writing LAME Tag...done ReplayGain: +2.1dB Would it be possible to just copy those frames using ffmpeg, instead of re-encoding them to get the maximum of quality? -Ulf _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
