On 7/8/06, Asfand Yar Qazi <[EMAIL PROTECTED]> wrote:
Hi,I can't seem to sync the audio to video on an xvid I have. Here's the commands I tried executing: transcode -i ${VIDEO}.avi -y ffmpeg --export_prof dvd-ntsc \ --export_asr 3 -J modfps --export_fps 29.97 \ --import_asr 4 -b224 -N 0x2000 -m dvd.ac3 \ -o dvd mplex -f 8 -o ${VIDEO}.mpg dvd.m2v dvd.ac3 I also tried using --export_prof dvd-pal and --export_fps 23.976 The video is originally in AC3 with a fps of 23.976. FYI, here's some sample transcode output: transcode v1.0.2 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg [transcode] (probe) suggested AV correction -D 0 (0 ms) | AV 0 ms | 0 ms [transcode] auto-probing source vid1.avi (ok) [transcode] V: import format | XviD RIFF data, AVI (V=ffmpeg|A=ac3) [transcode] V: import frame | 720x304 2.37:1 encoded @ 2.21:1 XXX: zoom=yes pre_clip=yes [transcode] V: pre clip frame | 720x376 (-36,0,-36,0) [transcode] V: zoom | 720x576 1.55:1 (Lanczos3) [transcode] V: bits/pixel | 0.181 [transcode] V: decoding fps,frc | 23.976,1 [transcode] V: Y'CbCr | YV12/I420 [transcode] A: import format | 0x2000 AC3 [48000,16,5] 448 kbps [transcode] A: downmix | 5 channels -> 2 channels [transcode] A: export format | 0x2000 AC3 [48000,16,2] 224 kbps [transcode] V: encoding fps,frc | 29.970,4 [transcode] A: bytes per frame | 6408 (6406.400000) [transcode] A: adjustment | [EMAIL PROTECTED] [transcode] V: IA32/AMD64 accel | sse3 (sse3 sse2 sse 3dnowext 3dnow mmxext mmx asm C) tc_memcpy: using amd64 for memcpy [transcode] V: video buffer | 10 @ 720x576 [import_ac3.so] v0.3.2 (2002-02-15) (audio) AC3 [import_ffmpeg.so] v0.1.12 (2004-05-07) (video) ffmpeg: MS MPEG4v1-3/MPEG4/MJPEG [filter_modfps.so] v0.10 (2003-08-18) plugin to modify framerate [filter_modfps.so] converting from 23.9760fps to 29.9700fps [export_ffmpeg.so] v0.3.13 (2004-08-03) (video) Lavc51.9.0 | (audio) MPEG/AC3/PCM [import_ac3.so] AC3->PCM [import_ac3.so] tcextract -a 0 -i "vid1.avi" -x ac3 -d 0 | tcdecode -x ac3 -d 0 -s 1.000000,1.000000,1.000000 -A 0 [export_ffmpeg.so] Using FFMPEG codec 'mpeg2video' (FourCC 'mpg2', MPEG2 compliant video). [export_ffmpeg.so]: INFO: Selected dvd profile, pal/secam video type for video [export_ffmpeg.so]: INFO: Set interlacing to top-first [export_ffmpeg.so]: INFO: Set frame rate to 25 [export_ffmpeg.so]: INFO: Set video bitrate to 5000 [export_ffmpeg.so]: INFO: Set GOP size to 15 [export_ffmpeg.so] Neither './ffmpeg.cfg' nor '~/.transcode/ffmpeg.cfg' [export_ffmpeg.so] found. Default settings will be used instead. [export_ffmpeg.so]: INFO: Starting 1 thread(s) [export_ffmpeg.so]: INFO: Display aspect ratio calculated as 1.777778 [export_ffmpeg.so]: INFO: Sample aspect ratio calculated as 1.422222 [mpeg2video @ 0x2aaaad1e9a50]removing common factors from framerate [export_ffmpeg.so]: INFO: Selected dvd profile for audio [export_ffmpeg.so]: INFO: Resampling filter inactive [export_ffmpeg.so]: INFO: Set number of audio channels to 2 [export_ffmpeg.so]: INFO: Set number of audio bits to 16 [export_ffmpeg.so]: INFO: No audio resampling necessary, using 48000 Hz tc_memcpy: using amd64 for memcpy [mpeg2video @ 0x2aaaad1e9a50]rc buffer underflow What am I doing wrong? Thanks
Also, just to note that the audio is always slower than the video
