Dear FFMPEG-developer, in case of digital preservation I want to convert/normalize videos to files with Matroska-Container, FFV1 video- and wave-PCM audiocodec.
I am using this commandline: ffmpeg -i inputvideo.webm -c:v ffv1 -level 3 -g 1 -coder 1 -context 1 -slices 16 -slicecrc 1 -report -c:a pcm_s32le -y outputvideo.mkv This line works fine, but with "-c:a pcm_u24le" I got the error message: "[matroska @ 0x1a0adc0] No wav codec tag found for codec pcm_u32le" Could you explain me, what was going wrong? And secondly, could you explain the difference between the various PCM-encodings? My assumpation was, that * the unsigned variant are "linear PCM", because there are only positive quantization levels * the signed variant are "linear differential PCM" * and the float variants are A/µ - weighted PCM? Or I am totally wrong with this interpretation? Please, could you link me to an explanation? Thanks in advance Mit freundlichen Grüßen With best regards, Andreas Romeyke -- project member "long-term preservation" Saxon State- and University Library Dresden (SLUB) Department 2 (IT), Division 2.3 (network and data security) Zellescher Weg 18 | 01069 Dresden phone: +49 351 4677 216 E-Mail: andreas.rome...@slub-dresden.de http://www.slub-dresden.de/ | @slubdresden _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
