[FFmpeg-user] Concatenating two audio files
Hello I've been trying to get FFmpeg to concatenate two audio files together, based on the top answer from this forum: http://superuser.com/questions/587511/concatenate-multiple-wav-files-using-single-command-without-extra-file Although I believe I've replicated the winning answer, I can't seem to work out what the correct syntax is to make it work. My log output (original parameters and console output) is below. For security I've had to change all the actual file paths to '' but all the paths and files are valid. I'm hoping somebody could point me to the problem, which I'm hoping is something as simple as having a quote mark out of place or something like that. Any help would be very much appreciated. Thanks Stuart FFmpeg process log. Started: 31/07/2014 11:45:59 exe: C:\Users\Stuart\***\FFmpeg\ffmpeg.exe Arguments: -i C:\Users\Stuart\AppData\*\cache\310714_3Vc1AQqWBXtqimH5Sj1j.wav -i C:\Users\Stuart\AppData\**\cache\310714_bGhog6vOWMmn8x4J8ADz.wav -filter_complex '[0:0][1:0]concat=n=2:v=0:a=1[out]' -map [out] C:\Users\Stuart\**\s-tk-220-00200.wav FFmpeg output: ffmpeg version N-53868-gc51654f Copyright (c) 2000-2013 the FFmpeg developers built on Jun 6 2013 03:00:45 with gcc 4.7.3 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib libavutil 52. 35.100 / 52. 35.100 libavcodec 55. 15.100 / 55. 15.100 libavformat55. 8.102 / 55. 8.102 libavdevice55. 2.100 / 55. 2.100 libavfilter 3. 75.101 / 3. 75.101 libswscale 2. 3.100 / 2. 3.100 libswresample 0. 17.102 / 0. 17.102 libpostproc52. 3.100 / 52. 3.100 Guessed Channel Layout for Input Stream #0.0 : mono Input #0, wav, from 'C:\Users\Stuart\*\cache\310714_3Vc1AQqWBXtqimH5Sj1j.wav': Metadata: encoder : Lavf55.8.102 Duration: 00:00:04.18, bitrate: 705 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono, s16, 705 kb/s [wav @ 00353400] max_analyze_duration 500 reached at 5015510 microseconds [wav @ 00353400] Estimating duration from bitrate, this may be inaccurate Guessed Channel Layout for Input Stream #1.0 : stereo Input #1, wav, from 'C:\Users\Stuart\**\cache\310714_bGhog6vOWMmn8x4J8ADz.wav': Duration: 00:00:05.20, bitrate: 1411 kb/s Stream #1:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s [AVFilterGraph @ 0035bd80] No such filter: '[0:0][1:0]concat=n=2:v=0:a=1[out]' Error configuring filters. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Concatenating two audio files
Turn your WAV files into raw PCM files - ffmpeg -i INPUT1 -c:a copy -vn -f s16le -y PCM1 Then u can either cat them together to get a raw PCM file or use ffmpeg concat protocol: ffmpeg -ar SAMPLE_RATE -channel_layout STEREO/MONO -f s16le -i concat:PCM1|PCM2|... -vn -c:a copy -f wav -y OUTPUT On Thu, Jul 31, 2014 at 1:47 PM, Stuart Bruce stuartrbr...@gmail.com wrote: Hello I've been trying to get FFmpeg to concatenate two audio files together, based on the top answer from this forum: http://superuser.com/questions/587511/concatenate-multiple-wav-files-using-single-command-without-extra-file Although I believe I've replicated the winning answer, I can't seem to work out what the correct syntax is to make it work. My log output (original parameters and console output) is below. For security I've had to change all the actual file paths to '' but all the paths and files are valid. I'm hoping somebody could point me to the problem, which I'm hoping is something as simple as having a quote mark out of place or something like that. Any help would be very much appreciated. Thanks Stuart FFmpeg process log. Started: 31/07/2014 11:45:59 exe: C:\Users\Stuart\***\FFmpeg\ffmpeg.exe Arguments: -i C:\Users\Stuart\AppData\*\cache\310714_3Vc1AQqWBXtqimH5Sj1j.wav -i C:\Users\Stuart\AppData\**\cache\310714_bGhog6vOWMmn8x4J8ADz.wav -filter_complex '[0:0][1:0]concat=n=2:v=0:a=1[out]' -map [out] C:\Users\Stuart\**\s-tk-220-00200.wav FFmpeg output: ffmpeg version N-53868-gc51654f Copyright (c) 2000-2013 the FFmpeg developers built on Jun 6 2013 03:00:45 with gcc 4.7.3 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib libavutil 52. 35.100 / 52. 35.100 libavcodec 55. 15.100 / 55. 15.100 libavformat55. 8.102 / 55. 8.102 libavdevice55. 2.100 / 55. 2.100 libavfilter 3. 75.101 / 3. 75.101 libswscale 2. 3.100 / 2. 3.100 libswresample 0. 17.102 / 0. 17.102 libpostproc52. 3.100 / 52. 3.100 Guessed Channel Layout for Input Stream #0.0 : mono Input #0, wav, from 'C:\Users\Stuart\*\cache\310714_3Vc1AQqWBXtqimH5Sj1j.wav': Metadata: encoder : Lavf55.8.102 Duration: 00:00:04.18, bitrate: 705 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono, s16, 705 kb/s [wav @ 00353400] max_analyze_duration 500 reached at 5015510 microseconds [wav @ 00353400] Estimating duration from bitrate, this may be inaccurate Guessed Channel Layout for Input Stream #1.0 : stereo Input #1, wav, from 'C:\Users\Stuart\**\cache\310714_bGhog6vOWMmn8x4J8ADz.wav': Duration: 00:00:05.20, bitrate: 1411 kb/s Stream #1:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s [AVFilterGraph @ 0035bd80] No such filter: '[0:0][1:0]concat=n=2:v=0:a=1[out]' Error configuring filters. ___ 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] FFmpeg 0.5.14 released
Just curious: is FFmpeg 0.5 still maintained? 0.5.14 was released on 2014-07-20 and promoted in a tweet. https://twitter.com/FFmpeg/status/491747465071448065 Jan ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] FFmpeg 0.5.14 released
Am 31.07.2014 um 17:19 schrieb Jan Ehrhardt: Just curious: is FFmpeg 0.5 still maintained? 0.5.14 was released on 2014-07-20 and promoted in a tweet. https://twitter.com/FFmpeg/status/491747465071448065 looks so but surely only critical security fixes http://ffmpeg.org/releases/ you won't get any help here for it signature.asc Description: OpenPGP digital signature ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] FFmpeg 0.5.14 released
On Thu, Jul 31, 2014 at 17:22:25 +0200, Reindl Harald wrote: Just curious: is FFmpeg 0.5 still maintained? 0.5.14 was released on 2014-07-20 and promoted in a tweet. looks so but surely only critical security fixes You can follow the commits here: https://github.com/FFmpeg/FFmpeg/commits/release/0.5 Just a few though. Apparently, someone doesn't think it needs to die. ;-) (Not that I do. I am opinionless for the moment.) Moritz ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
[FFmpeg-user] Need help with ffmpeg configurations
Hello, We need someone that is very good with ffmpeg configurations to help us with our settings. We are using FFMPEG to encode an 8 mbs stream to 250kb, 750kb, 1.5 mbs, 3 mbs.. are are having issues with the quality and reliability of the streams. 1. Slow loading of stream from video player 2. Sometimes streams just pauses during playback but then if we pause/play it works again. 3. Artifacts seen 4. Better video quality We need someone to be able to help us with the reliability and put into place logic where the streams can encode 24/7/365 . We also need someone to examine our settings per channel and recommend the best settings for the best quality for each channel. Are you able to help with this or can recommend someone to help with this? The right person would also become our 'Go To Person' for all ffmpeg needs so there is a possibility for long term relationships. Thanks for your time and hope to hear from you. Tan ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Need help with ffmpeg configurations
Tan Tran tan at choose.tv writes: We are using FFMPEG to encode an 8 mbs stream to 250kb, 750kb, 1.5 mbs, 3 mbs.. are are having issues with the quality and reliability of the streams. Please provide your command line and the console output. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] FFmpeg 0.5.14 released
Jan Ehrhardt phpdev at ehrhardt.nl writes: Just curious: is FFmpeg 0.5 still maintained? There are two important things: Please don't ask for support and please don't suggest 0.5 to other people (if you believe you have to use it). Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Issues with video and audio streams not starting at beginning of file when using filter_complex.
On Wed, 30 Jul 2014 07:17:40 -0700 (PDT) ac83 aclout...@c-spanarchives.org wrote: Hello, We're testing out some transcoding using filter_complex, but can't seem to produce video that both starts on an I-frame and starts at the same time as the audio. In the past we've just done -ss x -i ... -t y and things have worked, but with filter_complex we're consistently seeing the audio start before the video which causes our video streaming server to play them out of sync. I've tried a large variation of commands.. using trim and atrim w/ and w/out setpts etc.. ffmpeg -y -ss 21 -i /var/scratch/processRaw/f/20140729154103013_hd.trp/20140729154103013_hd.trp [trimmed] This is quite the command and filtergraph. Could you provide the most simple command and console output that still has the issue? Try to narrow down the culprit. How can we reproduce the issue? Does it occur only with specific inputs? What player are you using? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Libav (Avconv) Imposition on Users who want FFmpeg
I hope this thread is still accepting replies. I have written a text, below is part of it, and before posting it, I wish to inform those among people from Debian who I am thankful to, and they are Steve Langasek and Ian Jackson, as well as to this FFmpeg mailing list, whose developers I am thankful for the FFmpeg program, and also to Christian Marillat whose deb-multimedia,org repo I use for FFmpeg and other programs. The text will contain a very specific mention of FFmpeg in Debian's Tails GNU/Linux so it is relevant for all the recipients. I am planning to post it on: Debian Development http://forums.debian.net/viewforum.php?f=19 right after successful sending of this mail. Here is part of the text, beginning lines first, and ending lines. Pls. visit the Debian Development of the Debian Forums to read, hopefully, the entire text, whose title will be: Defeat and Hope for GNU/Linux == beginning I've read some (only some) of the discussions of the thread: https://lists.debian.org/debian-ctte/2014/02/threads.html#00441 for the Bug#727708: multiple init systems - formal resolution proposal E.g., one message that I liked is this one: https://lists.debian.org/debian-ctte/2014/02/msg00370.html and I wish to thank the members of the Debian Technical Committee: Steve Langasek and Ian Jackson whose views and standpoints I admire and would follow wrt to the issue. I wish to thank them for trying to bring reason into Debian. == beginning == ending Miroslav Rovis Zagreb, Croatia, www.CroatiaFidelis.hr publictimestamp.org/ptb/PTB-21260 sha256 2014-07-31 21:01:46 UTC E412D171157979E215F7354748BABF3FE01773D004AD0E75DF6CAA075808F294 == ending On 2014-04-24 11:31, Reindl Harald wrote: Am 24.04.2014 09:49, schrieb Dainius (GreatEmerald): This change is being done due to various reasons like matching default with Fedora and Debian this is another lie in that context * Fedora does *not* ship ffmpeg at all for patent reasons * rpmfusion does * rpmfusion does *not* ship libav, still the origin ffmpeg Jason Garrett-Glaser is spreading lies over years he even told me on the x264 list that the command ffmpeg is deprecated and ffmpeg is dead and replaced by libav at all ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Libav (Avconv) Imposition on Users who want FFmpeg
On 2014-08-01 01:10, miro.ro...@croatiafidelis.hr wrote: I hope this thread is still accepting replies. I have written a text, below is part of it, and before posting it, I wish to inform those among people from Debian who I am thankful to, and they are Steve Langasek and Ian Jackson, as well as to this FFmpeg mailing list, whose developers I am thankful for the FFmpeg program, and also to Christian Marillat whose deb-multimedia,org repo I use for FFmpeg and other programs. The text will contain a very specific mention of FFmpeg in Debian's Tails GNU/Linux so it is relevant for all the recipients. I am planning to post it on: Debian Development http://forums.debian.net/viewforum.php?f=19 right after successful sending of this mail. And it is there. Just like the last time, in April, when I started this topic, who knows if there we will see any server ...ehrr... fluctuations exactly now... Here it is, at the time of this writing: Defeat and Hope for GNU/Linux http://forums.debian.net/viewtopic.php?f=19t=116472 And now Good Night! to all good Free Open Software loving people! Mirolsav Rovis Zagreb, Croatia www.CroatiaFidelis.hr ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
[FFmpeg-user] FFmpeg and OPW
Hi all OPW (Outreach Program for Women) is twice per year (compared to google summer of code which is just once a year) FFmpeg can participate in the next round but we need to fund at least 1 intern/student (6250 USD) for that. OPW is not run by a large corporation with deep pockets. Thus my mail here, if you are/represent a company or know one who does and who uses and benefits from FFmpeg, and has the financial resources, please consider to donate or ask/forward this mail. Why should you donate? Well the money will be used to fund a intern working on and improving FFmpeg. (assuming there will be a intern who wants to work on FFmpeg in OPW) Maybe it will be a failure, maybe it will lead to some minor improvments in FFmpeg, maybe it will majorly improve FFmpeg. And maybe we gain a new long term contributor. And improvments in FFmpeg again benefit you as company or user of FFmpeg. Also if you donate 6250$ to OPW for ffmpeg you get your logo at https://gnome.org/opw/ Either way for FFmpeg to be part of the next OPW round we need at least 1 payment commitment of 6250 USD by the end of August at the latest Please keep o...@ffmpeg.org in CC if you have questions or want to donate. PS: there are 2 ways to donate, one is directly to OPW/Gnome, this way you get your logo at gnome.org/opw if you donate at least 6250USD or through https://co.clickandpledge.com/advanced/default.aspx?wid=56226 for smaller sums. PS2: in case we get more than 6250$, on our SPI (clickandpledge) account the additional funding may be used for future ffmpeg-OPW rounds or things similar in spirit to OPW and GSOC. Thanks! -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Everything should be made as simple as possible, but not simpler. -- Albert Einstein signature.asc Description: Digital signature ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
