Re: [FFmpeg-user] Delay between the first packet and last packed in the muxing queue
2014-12-07 13:33 GMT+01:00 Matej Mailing mail...@tam.si: 2014-12-07 6:06 GMT+01:00 Roger Pack rogerdpa...@gmail.com: On Sat, Dec 6, 2014 at 5:58 AM, Matej Mailing mail...@tam.si wrote: Yes, that is the moment when the input drops due to some network issues, but it is back after a second or so. so what you want is an http connection that auto reconnects when the connection drops? I wonder if there's some timeout option that could be set on it [if it's timing out--it might not be...] what do you mean is back after a second or so ffmpeg doesn't seem to think it's back... Hi, this is exactly what I would like to have - an http connection that auto reconnects after the connection drop. With back after a second or so I mean that due to network issues any network input can be stopped for some time and then becomes available agan. In this case output show resume as normal. This is a very practical situation with any http input format. Thanks, Matej Since there is no synchronization between video and sound required, I would like that ffmpeg continues playing mp3 stream. In current situation those errors keep showing up all the time and the output is never normal again - I have to manually restart ffmpef process (until the next input's drop occurs...) I think this is a very common situation with all the input streams since they can drop for some time due to many possibly network issues and resuming when the stream is available again seems to be the option we want. Thanks, Matej 2014-12-05 23:50 GMT+01:00 Roger Pack rogerdpa...@gmail.com: On Fri, Dec 5, 2014 at 12:20 AM, Matej Mailing mail...@tam.si wrote: Hi, when muxing the screen capture with the live mp3 stream, it sometimes happens that live mp3 stream becomes unavailable for a short moment (due to routing issues etc.) and when this happens, the error http://mp3.rtvslo.si/val202: Unknown error pops up. Sounds to me like the input is dropped at that point [?] ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user Hi, right now from my perspective it seems that the best option is to use -shortest output option and have a cronjob checking if ffmpeg is running and if it's not, restart the process .. However this doesn't sound as a perfect solution in this case - how do you guys deal with input streams failing in such cases? Thanks! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Delay between the first packet and last packed in the muxing queue
On 12/08/2014 11:52 AM, Matej Mailing wrote: Hi, right now from my perspective it seems that the best option is to use -shortest output option and have a cronjob checking if ffmpeg is running and if it's not, restart the process .. However this doesn't sound as a perfect solution in this case - how do you guys deal with input streams failing in such cases? Thanks! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user I use an upstart script on centos6.6 with respawn option, but you may prefer any reliable supervisor daemon. Regards, Sinan ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] concat loses 2 frames or freezes up video
Never-the-less, trying to concat certain files that appear whole and intact with all I/P/B frames, does cause a couple problems, with several files, about 10% of the ones I tested. The input files used for these tests, can be found at: http://seahorseCorral.org/videos/tests/20141107_4horses-scatter-cows_mini1355.mov After some needed sleep I thought of some new tests. Loading #1 in avidemux looks correct. An I frame every 15 frames. Ah, the 2 frames Are there after all, but they are skipped over in mplayer because the timing is not 30 fps or something about the joint location. In avidemux, I frame# 375 is at 12.537 , 390 is at 13.039 but should be 13.000. Each I frame drifts in time by 0.001 or 0.002 seconds. Using the inquiry function of ffmpeg reveals the problem. ffmpeg -i 20141107_test1-loses2frames.mov ffmpeg version N-68279-g72c9844 Copyright (c) 2000-2014 the FFmpeg developers built on Dec 7 2014 14:41:06 with gcc 4.9.1 (GCC) configuration: --enable-gpl --enable-libx264 --disable-doc --disable-htmlpages --disable-podpages --disable-ffserver --disable-network --enable-libvpx libavutil 54. 15.100 / 54. 15.100 libavcodec 56. 14.100 / 56. 14.100 libavformat56. 15.102 / 56. 15.102 libavdevice56. 3.100 / 56. 3.100 libavfilter 5. 2.103 / 5. 2.103 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc53. 3.100 / 53. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '20141107_test1-loses2frames.mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf56.15.102 Duration: 00:00:22.08, start: 0.00, bitrate: 7661 kb/s Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720, 7149 kb/s, 29.91 fps, 30 tbr, 15360 tbn, 30720 tbc (default) Metadata: handler_name: DataHandler Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 32000 Hz, mono, s16, 512 kb/s (default) Metadata: handler_name: DataHandler It thinks the frame rate should be 29.91 fps. So why does it correct itself only at the joint? Looking back in the output from when this file was created, it DOES say it knew the output file should be 30.0 fps. Loading #2 in avidemux shows one I frame every 10 seconds. If I ignore the warped time stamp, All I-frames look correct. Note the length says it is 21:21.13 and fps is 1.5 ffmpeg -i 20141107_test2-freezes.mov Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '20141107_test2-freezes.mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf56.15.102 Duration: 00:21:21.13, start: 0.00, bitrate: 393 kb/s Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720, 367 kb/s, 1.50 fps, 30 tbr, 15360 tbn, 30720 tbc (default) Metadata: handler_name: DataHandler Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 32000 Hz, mono, s16, 512 kb/s (default) Metadata: handler_name: DataHandler Trying ffplay for playback, has same problem as mplayer, so can't blame mplayer. Loading #3 in avidemux shows each I-frame to be every 0.0282 seconds ffmpeg -i 20141107_test3-fails.mov Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '20141107_test3-fails.mov': encoder : Lavf56.15.102 Duration: 00:00:54.00, start: 0.00, bitrate: 7985 kb/s Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720, 132398 kb/s, 531.60 fps, 30 tbr, 19200 tbn, Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 32000 Hz, mono, s16, 512 kb/s (default) 531 fps? but this time the duration correctly says 54 seconds. Is there a memory leak? The fps and length are appearing more like random than a pattern. So how do I force it to write the output at 30 fps? If I add -r 30 , the new console output now does show a change for tbc to 30 ffmpeg -f concat -i concat-list3.txt -r 30 -c copy 20141107_test3-rate30.mov Output #0, mov, to '20141107_test3-rate30.mov': Metadata: encoder : Lavf56.15.102 Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p, 1280x720, q=2-31, 7453 kb/s, 30 fps, 15360 tbn, 30 tbc Stream #0:1: Audio: pcm_s16le (sowt / 0x74776F73), 32000 Hz, mono, 512 kb/s but playing the resulting file still has the problem, and using identify also shows no effective change. ffmpeg -i 20141107_test3-rate30.mov Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '20141107_test3-rate30.mov': encoder : Lavf56.15.102 Duration: 00:00:54.00, start: 0.00, bitrate: 7985 kb/s Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720, 131538 kb/s, 528.15 fps, 30 tbr, 15360 tbn, Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 32000 Hz, mono, s16, 512 kb/s (default) Now that I've narrowed down the problem further, this looks very similar to another problem I started having last month when I started switching my scripts over
[FFmpeg-user] AVCHD files
Hi, Could someone give me any hints to deal with AVCHD (*.MTS) files with free software? I've tried mplayer (MPlayer SVN-r37150-4.8.3) with no result. ffmpeg (version 2.1.5) seems go better: it'a problem on my hw resource, also, I think (Athlon 64X2@2.7Ghz, with 4GB RAM). And these files are on some DVD UDF that are damaged, too. GNU ddrescue (v.1.17) is a excellent tool for recovering a disk image, then I'd carve it with foremost. Foremost (version 1.5.7) is also a excellent tool, but needs instructions on what types of file are to be found. File (v.5.19) enigmatically say that *.MTS files are data. With a little research on the net I cannot found the signature (magic number) for these files: it's depends on copyright reason? I've tried also empirically with hexdump and strings on the head of some valid MTS file, looking for it. Then on the basis of some MTS file head comparison I've write these lines on my foremost.conf # euristic AVCHD MTS from head confontation: MTSy20 \x00 \x00 \xb0 \x11 \x00 \x00 \xc1 \x00 \x00 \x00 \x00 \xe0 \x1f \x00 \x01 \xe1 \x00 \x23 \x5a \xab \x82 Is this a reliable test? Thanks, enrico ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
[FFmpeg-user] Image sequence naming convention
Hi. I did a bunch of camera shots with my raspberry pi camera. In my script I use the following naming scheme for the files created: `date --iso-8601=seconds`.jpg Now I would like to further process them with ffmpeg. What's the correct way to call ffmpeg with these files? Most examples on the net simply do it like -f image2 output_%05d.jpg - but this obviously doesn't work. Thank you! Regards, Andreas ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Image sequence naming convention
Andreas Weller wrote: I did a bunch of camera shots with my raspberry pi camera. In my script I use the following naming scheme for the files created: `date --iso-8601=seconds`.jpg Now I would like to further process them with ffmpeg. What's the correct way to call ffmpeg with these files? Most examples on the net simply do it like -f image2 output_%05d.jpg - but this obviously doesn't work. Hi Andreas, If you are looking to turn those images into an animation or movie, then this is the format of the command you're looking for: ffmpeg -r 30 -i frame-%d.ppm -c:v h264 -s 640x480 out.avi You'll need each frame numbered in sequential order. The date sequence won't work as is. frame-1.ppm frame-2.ppm frame-3.ppm etc... and unless there is a new filter for loading non-RAW files, I'd suggest a script to batch convert frame-1.jpg frame-1.ppm Stewart ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Image sequence naming convention
S Andreason sandreas41 at gmail.com writes: ffmpeg -r 30 -i frame-%d.ppm -c:v h264 -s 640x480 out.avi You'll need each frame numbered in sequential order. The date sequence won't work as is. frame-1.ppm frame-2.ppm frame-3.ppm etc... and unless there is a new filter for loading non-RAW files, I'd suggest a script to batch convert frame-1.jpg frame-1.ppm This seems to be a very bad idea since different colour spaces are involved and FFmpeg should be able to read the jpg file. If renaming the source files is impossible, using a glob pattern could be an alternative. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
