Error Org.ffmpeg - Buffer Underflow
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Ffmpeg Packet Too Large Ignoring Buffer Limits
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Ffmpeg Bufsize
Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up ffmpeg error trying to create mpeg video up vote 1 down vote favorite I am having trouble creating mpeg files, I have 2 bitmaps (2592*2160 32bit). I am trying to combine them into an mpeg file but I cant get it to work, the command I have tried is: ffmpeg -i %d.bmp -b:v 99.99M -r 1 -s 2592x2160 vid.mpg the output is ffmpeg -i %d.bmp -b:v 99.99M -r 1 -s 2592x2160 vid.mpg ffmpeg version N-41416-g718607b Copyright (c) 2000-2012 the FFmpeg developers built on Jun 8 2012 12:46:19 with gcc 4.6.3 configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-ru ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass --enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable -libfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libope njpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libth eora --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable- libvorbis --enable-libvpx --ena libavutil 51. 56.100 / 51. 56.100 libavcodec 54. 25.100 / 54. 25.100 libavformat 54. 6.101 / 54. 6.101 libavdevice 54. 0.100 / 54. 0.100 libavfilter 2. 78.101 / 2. 78.101 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 15.100 / 0. 15.100 libpostproc 52. 0.100 / 52. 0.100 [image2 @ 01e6be40] Stream #0: not enough frames to estimate rate; consi
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playing around with putting AVC video and AC3 audio into a VOB container with ffmpeg (rev. 11143). Whenever I do this, ffmpeg generates thousands of "buffer underflow" warnings. The resulting http://forum.doom9.org/archive/index.php/t-132773.html video is still playable, but I'm wondering if this is something "normal" that everyone is seeing, or if I should be doing something differently. Here's my command line: ffmpeg -r 23.976 -f h264 -i video.h264 -f ac3 -i audio.ac3 -vcodec copy -acodec copy -f vob output.vob And here's what ffmpeg comes back with: FFmpeg version SVN-r11143, Copyright (c) 2000-2007 Fabrice Bellard, et al. configuration: --enable-gpl --enable-pp buffer underflow --enable-swscaler --enable-pthreads --enable-liba52 --enable-avisynth --enable-libamr-nb --enable-libamr-wb --enable-libfaac --enable-libfaad --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --cpu=i686 --enable-memalign-hack --extra-ldflags=-static libavutil version: 49.5.0 libavcodec version: 51.48.0 libavformat version: 52.1.0 built on Dec 3 2007 17:42:57, gcc: 4.2.2 (mingw32) Input #0, h264, from 'video-HL51.h264': Duration: N/A, bitrate: N/A Stream #0.0: Video: h264, yuv420p, 1280x720 [PAR 0:1 DAR 0:1], 23.98 tb(r) Input #1, ac3, from 'audio.ac3': Duration: 00:43:44.6, bitrate: 640 kb/s ffmpeg buffer underflow Stream #1.0: Audio: liba52, 48000 Hz, 5:1, 640 kb/s Output #0, vob, to 'output.vob': Stream #0.0: Video: libx264, yuv420p, 1280x720 [PAR 0:1 DAR 0:1], q=2-31, 23.98 tb(c) Stream #0.1: Audio: ac3, 48000 Hz, 5:1, 640 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #1.0 -> #0.1 Press [q] to stop encoding [vob @ 00ABFB90]buffer underflow i=1 bufi=2397 size=2560 [vob @ 00ABFB90]packet too large, ignoring buffer limits to mux it [vob @ 00ABFB90]buffer underflow i=1 bufi=2397 size=2560 [vob @ 00ABFB90]buffer underflow i=1 bufi=2237 size=2560 [vob @ 00ABFB90]packet too large, ignoring buffer limits to mux it ... etc...etc... until it finishes with: [vob @ 00ABFB90]packet too large, ignoring buffer limits to mux it [vob @ 00ABFB90]buffer underflow i=1 bufi=2296 size=2560 frame=62929 fps=618 q=17036097.5 Lsize= 1518838kB time=2624.6 bitrate=4740.6kbits/s video:1294848kB audio:205050kB global headers:0kB muxing overhead 1.262777% Any thoughts or other experiences? foxyshadis15th December 2007, 23:43You don't define any buffer settings, so it's defaulting to DVD specs, which are way too low for HD. If you want to remove the warnings, I think you need -bufsize, but I don't know what the real buffer size is for HD-DVD. (Not that you're very likely to exceed it at that bitrate.) omf16th December 2