On date Wednesday 2014-09-17 19:44:02 +0800, linxs wrote: > Hi everybody, > I transcode other video to mpg2 video as following command: > ffmpeg -i <other video> -c:v mpeg2video -b:v 8000k -c:a mp2 -y 0.mpg > > /**************************************************************************************************** > /**************************************************************************************************** > d:\>ffmpeg -i orig.mpg -c:v mpeg2video -c:a mp2 -y 0.mpg > ffmpeg version N-63439-g96470ca Copyright (c) 2000-2014 the FFmpeg > developers [...] > I use MediaInfo.exe to view the ouput mpg, and get the result: > > /**************************************************************************************************** > /**************************************************************************************************** > General > Complete name : > D:\1.project\1.HDPlayer\audiolevel\FM_MIRROR\loop\0.mpg > Format : MPEG-PS > File size : 1.70 MiB > Duration : 15s 24ms > Overall bit rate mode : Variable > Overall bit rate : 951 Kbps > > Video > ID : 224 (0xE0) > Format : MPEG Video > Format version : Version 2 > Format profile : Main@Main > Format settings, BVOP : No > Format settings, Matrix : Default > Format settings, GOP : Variable > Duration : 14s 960ms > Bit rate mode : Variable > Bit rate : 548 Kbps > Width : 720 pixels > Height : 576 pixels > Display aspect ratio : 4:3 > Frame rate : 25.000 fps > Standard : PAL > Color space : YUV > Chroma subsampling : 4:2:0 > Bit depth : 8 bits > Scan type : Progressive > Compression mode : Lossy > Bits/(Pixel*Frame) : 0.053 > Time code of first frame : 00:00:00:00 > Time code source : Group of pictures header > Stream size : 1 001 KiB (57%) > > Audio > ID : 192 (0xC0) > Format : MPEG Audio > Format version : Version 1 > Format profile : Layer 2 > Duration : 15s 24ms > Bit rate mode : Constant > Bit rate : 384 Kbps > Channel(s) : 2 channels > Sampling rate : 48.0 KHz > Compression mode : Lossy > Delay relative to video : -10ms > > >>>>>>>>> !!!!!!! how to make this "delay relative to video" value to > 0ms?
What values do you get with ffprobe? Did you try with the asetpts filter? This will require audio transcoding though. _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user