#1297: FFMPEG creating stuttering MPEG-2 TS video files -------------------------------------+------------------------------------- Reporter: ramitbhalla | Owner: Type: defect | Status: new Priority: normal | Component: Version: unspecified | undetermined Keywords: | Resolution: Blocking: | Blocked By: Analyzed by developer: 0 | Reproduced by developer: 0 -------------------------------------+-------------------------------------
Comment (by cehoyos): Replying to [comment:19 ramitbhalla]: > 1. Yes tried with a lower resolution (1024x768 - the lowest possible) and output video is still stuttering. What do you mean with "lowest possible"? I tried 320x180 and I find the video still very watchable at least for testing and I do not see any stuttering, it also works fine with 640x360. I do see stuttering with higher resolutions because my current setup cannot play 60fps movies with (for example) 960x540 or higher resolutions. {{{ $ ffmpeg -i Test2.ts -s 320x180 -qscale 2 -ac 2 out.ts ffmpeg version N-41327-g02827a3 Copyright (c) 2000-2012 the FFmpeg developers built on Jun 5 2012 14:33:36 with gcc 4.3.2 configuration: --cc=/usr/local/gcc-4.3.2/bin/gcc --enable-gpl --enable- libopenjpeg --enable-libvorbis --enable-libspeex --enable-libmp3lame --enable-libtheora --extra-ldflags=-lm --enable-libvpx --enable-libxavs libavutil 51. 56.100 / 51. 56.100 libavcodec 54. 23.100 / 54. 23.100 libavformat 54. 6.101 / 54. 6.101 libavdevice 54. 0.100 / 54. 0.100 libavfilter 2. 78.100 / 2. 78.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 15.100 / 0. 15.100 libpostproc 52. 0.100 / 52. 0.100 [mpeg2video @ 0x90143c0] mpeg_decode_postinit() failure Last message repeated 19 times [mpegts @ 0x90123c0] PES packet size mismatch Input #0, mpegts, from 'Test2.ts': Duration: 00:00:51.70, start: 30981.471378, bitrate: 9754 kb/s Program 1009 No Program Stream #0:0[0x7c0]: Video: mpeg2video (Main), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 17782 kb/s, 64.74 fps, 59.94 tbr, 90k tbn, 119.88 tbc Stream #0:1[0x7c1]: Audio: ac3, 48000 Hz, 5.1(side), s16, 384 kb/s Please use -q:a or -q:v, -qscale is ambiguous [buffer @ 0x9018e60] w:1280 h:720 pixfmt:yuv420p tb:1/90000 sar:1/1 sws_param:flags=2 [ffmpeg_buffersink @ 0x9019640] No opaque field provided [scale @ 0x90161c0] w:1280 h:720 fmt:yuv420p sar:1/1 -> w:320 h:180 fmt:yuv420p sar:1/1 flags:0x4 [aformat @ 0x9082be0] auto-inserting filter 'auto-inserted resampler 0' between the filter 'Parsed_anull_0' and the filter 'aformat' [auto-inserted resampler 0 @ 0x9083660] chl:5.1(side) fmt:s16 r:48000Hz -> chl:stereo fmt:s16 r:48000Hz [mpegts @ 0x9019bc0] muxrate VBR, pcr every 5 pkts, sdt every 200, pat/pmt every 40 pkts Output #0, mpegts, to 'out.ts': Metadata: encoder : Lavf54.6.101 Stream #0:0: Video: mpeg2video, yuv420p, 320x180 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 90k tbn, 59.94 tbc Stream #0:1: Audio: mp2, 48000 Hz, stereo, s16, 128 kb/s Stream mapping: Stream #0:0 -> #0:0 (mpeg2video -> mpeg2video) Stream #0:1 -> #0:1 (ac3 -> mp2) Press [q] to stop, [?] for help frame= 3055 fps= 82 q=2.0 Lsize= 20399kB time=00:00:50.43 bitrate=3313.1kbits/s dup=50 drop=0 video:17737kB audio:788kB global headers:0kB muxing overhead 10.111193% }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1297#comment:22> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker _______________________________________________ FFmpeg-trac mailing list FFmpeg-trac@avcodec.org http://avcodec.org/mailman/listinfo/ffmpeg-trac