[FFmpeg-user] Question about -re flag and how to avoid audio latency
Hi, I am using ffmpeg to capture audio through a pulseaudio monitor sink and pipe it to a webserver so that I can do streaming: ffmpeg -loglevel panic -re -ac 2 -ar 44100 -f pulse -i audio.monitor -acodec flac -f flac -ac 2 -ar 44100 pipe: As you can see, I am using the -re flag, and I am not very sure if this is useful in this case. Does it really make any difference to add it or not?. In addition, I get certain latency that increases with time and it can reach even 8 seconds being mp3 the most affected codec. I am researching about it to better understand. However, what would you suggest me to try in order to reduce latency for audio streaming?. I would be glad to know your suggestions. Best regards, (Please, add my address to the reply, I am not subscribed). -- Muammar El Khatib. http://muammar.me | http://proyectociencia.org ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] FFmpeg Intel icl compile (configure) issue
Has anyone solved this issue already??? I´m having the EXACT same issue... I´m trying to compile ffmpeg 3.1.2 (Also tried with 2.3.3) with ICL 2014 and it does not work... It must be something from MSYS2 environment... If I compile it under MSYS 1.0 environment it works fine (And I´ve been using it for years). But now I need MSYS2 environment because I need to use Intel Quick Sync and use the library libmfx, but I can´t make it worn under MSYS1 because it says pkg-config could not locate libmfx... So.. a dilema... ICL won´t work on MSYS2 and under MSYS1 I can´t use libmfx... -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/FFmpeg-Intel-icl-compile-configure-issue-tp4674939p4677268.html Sent from the FFmpeg-users mailing list archive at Nabble.com. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ERROR: opus not found using pkg-config
Am 25.08.2016 um 15:28 schrieb Ashutosh Kumar: I am getting error on ff-mpeg installing time. ERROR: opus not found using pkg-config so just install opus-devel / opus-dev or just don't enable it at ./configure - what's the problem? signature.asc Description: OpenPGP digital signature ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] High CPU use on Raspberry Pi with hardware encoding
Using ffmpeg 3.1.2 on a raspberry pi 2 with osmc/raspbian and getting around 80 fps while the cpu is around %130. Is this what can be expected using the h264_omx hardware encoder? I've read various places online that people were getting around 160 fps with very little cpu utilization. Just looking for other's experiences. Regards, Brian top Tasks: 1 total, 0 running, 1 sleeping, 0 stopped, 0 zombie %Cpu(s): 35.0 us, 4.5 sy, 0.0 ni, 60.5 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem:751052 total, 239308 used, 511744 free, 6644 buffers KiB Swap:0 total,0 used,0 free.75692 cached Mem PID USER PR NIVIRTRESSHR S %CPU %MEM TIME+ COMMAND 21604 osmc 20 0 160608 13800 7856 S 133.7 1.8 0:09.78 ./ffmpeg -i ../local/VTS_01_2.VOB -c:v h264_omx -c:a copy out.mp4 ffmpeg command [osmc@osmc FFmpeg-n3.1.2]$ ./ffmpeg -i ../local/VTS_01_2.VOB -c:v h264_omx -c:a copy out.mp4 ffmpeg version 3.1.2 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.9.2 (Debian 4.9.2-10) configuration: --enable-static --enable-omx-rpi --enable-mmal --enable-openssl libavutil 55. 28.100 / 55. 28.100 libavcodec 57. 48.101 / 57. 48.101 libavformat57. 41.100 / 57. 41.100 libavdevice57. 0.101 / 57. 0.101 libavfilter 6. 47.100 / 6. 47.100 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 [mpeg2video @ 0x19f3b20] Invalid frame dimensions 0x0. Last message repeated 7 times Input #0, mpeg, from '../local/VTS_01_2.VOB': Duration: 00:00:15.46, start: 13.026022, bitrate: 555235 kb/s Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, smpte170m), 720x480 [SAR 8:9 DAR 4:3], Closed Captions, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc Stream #0:1[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 384 kb/s Stream #0:2[0x1bf]: Data: dvd_nav_packet File 'out.mp4' already exists. Overwrite ? [y/N] y [h264_omx @ 0x19f54d0] Using OMX.broadcom.video_encode [mp4 @ 0x1a41dd0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead. Last message repeated 1 times [mp4 @ 0x1a41dd0] track 1: codec frame size is not set Output #0, mp4, to 'out.mp4': Metadata: encoder : Lavf57.41.100 Stream #0:0: Video: h264 (h264_omx) ([33][0][0][0] / 0x0021), yuv420p, 720x480 [SAR 8:9 DAR 4:3], q=2-31, 200 kb/s, 29.97 fps, 30k tbn, 29.97 tbc Metadata: encoder : Lavc57.48.101 h264_omx Stream #0:1: Audio: ac3 ([165][0][0][0] / 0x00A5), 48000 Hz, stereo, 384 kb/s Stream mapping: Stream #0:0 -> #0:0 (mpeg2video (native) -> h264 (h264_omx)) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help frame= 975 fps= 79 q=-0.0 Lsize=2341kB time=00:00:32.49 bitrate= 590.0kbits/s dup=18 drop=0 speed=2.63x video:822kB audio:1504kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.596250% Exiting normally, received signal 2. [osmc@osmc FFmpeg-n3.1.2]$ ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg video conversation command is not working
Hi ffmpeg team,
Kindly find the attachment for the error log that occur when we try to
install ffmpeg 3.1.2, if any other details you need means kindly let us
know.
Thanks,
On Thu, Aug 25, 2016 at 11:02 AM, Madhav G wrote:
> Hi ffmpeg Team,
>
> Good day,
>
> We are waiting for your reply, kindly I request you to give some solution
> on our issue.
>
> Thanks,
>
> On Wed, Aug 24, 2016 at 3:52 PM, Madhav G wrote:
>
>> *Hi ffmpeg team,*
>>
>> We are using your software past 2 years with following version and OS,
>>
>> CentOS - 6.8
>> Php - 5.3.29
>> ffmpeg - 0.6.5
>> ffmpeg-php - 0.6.0
>>
>> till last month its has been worked well after that video does not
>> converted, just new file will be created with 0 MB file, to solve it we
>> have check your website and document then we came to know that, old version
>> is the problem, so we try to install new version ffmpeg 3.1.2 its has been
>> installed but dependency file ffmpeg-php does not get upgraded, because of
>> that following
>>
>>
>>
>> * command line in the php is not working,exec("ffmpeg -i sample_20.mp4
>> outfile.avi");*
>>
>>
>>
>> *Error message :"Error while opening encoder for output stream #0.1 -
>> maybe incorrect parameters such as bit_rate, rate, width or height"*
>>
>> *same time the command working well in command prompt.*
>>
>> I have attached the error log file that we got during the installation
>> time kindly check it out.
>>
>> I hope you have understand my situation kindly advise us to install full
>> package successfully and run the command in the php.
>>
>> Thanks for your help,
>>
>> --
>> --
>>
>> *Best Regards,*
>>
>> *Madhav,*
>>
>> Asst Manager - Project
>>
>> *NDOT Technologies Pvt Ltd,*
>>
>> Block No 3,
>> 1,2 & 3rd Floor,
>> Mullai Nagar,
>>
>> Coimbatore - 641041.
>>
>> *Phone:* +91 422-434-2518, 519
>>
>> *Mail:-*
>>
>> *US :* +1 (323) 744 -6443
>> [image: Facebook] [image: Linked_in]
>> [image: Twitter]
>>
>>
>> Enterprise Mobility – CRM - ERP – Mobile - Web - Software - Hire Team -
>> Ecommerce
>>
>> *INDIA (HQ)* - Singapore - United States - Dubai - Morocco – Spain -
>> Venezuela
>>
>>
>> DISCLAIMER:
>> The information contained in this message (including any attachments) is
>> confidential and may be privileged. If you have received it by mistake
>> please notify the sender by return e-mail and permanently delete this
>> message and any attachments from your system. Any dissemination, use,
>> review, distribution, printing or copying of this message in whole or in
>> part is strictly prohibited. Please note that e-mails are susceptible to
>> change. NDOT Technologies Pvt Ltd (including its group companies) shall not
>> be liable for the improper or incomplete transmission of the information
>> contained in this email.
>>
>
>
>
> --
> --
>
> *Best Regards,*
>
> *Madhav,*
>
> Asst Manager - Project
>
> *NDOT Technologies Pvt Ltd,*
>
> Block No 3,
> 1,2 & 3rd Floor,
> Mullai Nagar,
>
> Coimbatore - 641041.
>
> *Phone:* +91 422-434-2518, 519
>
> *Mail:-*
>
> *US :* +1 (323) 744 -6443
> [image: Facebook] [image: Linked_in]
> [image: Twitter]
>
>
> Enterprise Mobility – CRM - ERP – Mobile - Web - Software - Hire Team -
> Ecommerce
>
> *INDIA (HQ)* - Singapore - United States - Dubai - Morocco – Spain -
> Venezuela
>
>
> DISCLAIMER:
> The information contained in this message (including any attachments) is
> confidential and may be privileged. If you have received it by mistake
> please notify the sender by return e-mail and permanently delete this
> message and any attachments from your system. Any dissemination, use,
> review, distribution, printing or copying of this message in whole or in
> part is strictly prohibited. Please note that e-mails are susceptible to
> change. NDOT Technologies Pvt Ltd (including its group companies) shall not
> be liable for the improper or incomplete transmission of the information
> contained in this email.
>
--
--
*Best Regards,*
*Madhav,*
Asst Manager - Project
*NDOT Technologies Pvt Ltd,*
Block No 3,
1,2 & 3rd Floor,
Mullai Nagar,
Coimbatore - 641041.
*Phone:* +91 422-434-2518, 519
*Mail:-*
*US :* +1 (323) 744 -6443
[image: Facebook] [image: Linked_in]
[image: Twitter]
Enterprise Mobility – CRM - ERP – Mobile - Web - Software - Hire Team -
Ecommerce
*INDIA (HQ)* - Singapore - United States - Dubai - Morocco – Spain -
Venezuela
DISCLAIMER:
The information contained in this message (including any attachments) is
confidential and may be privileged. If you have received it by mistake
please notify the sender by return e-mail and permanently delete this
message and any attachments from your system. Any
[FFmpeg-user] ERROR: opus not found using pkg-config
Hi, I am getting error on ff-mpeg installing time. ERROR: opus not found using pkg-config If you think configure made a mistake, make sure you are using the latest version from Git. If the latest version fails, report the problem to the ff-mpeg-u...@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net. Include the log file "config.log" produced by configure as this will help solve the problem. -- Thanks Ashutosh Kumar ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] What is Segmentation fault: 11 ?
Am 24.08.16 um 22:49 schrieb Carl Eugen Hoyos: > Please test current FFmpeg. $ lldb -- ./ffmpeg_g -i /Users/Downloads/Test.mp4 (lldb) target create "./ffmpeg_g" Current executable set to './ffmpeg_g' (x86_64). (lldb) settings set -- target.run-args "-i" "/Users/Downloads/Test.mp4" (lldb) run Process 83355 launched: './ffmpeg_g' (x86_64) ffmpeg version N-81454-gfeb2ea6 Copyright (c) 2000-2016 the FFmpeg developers built with Apple LLVM version 8.0.0 (clang-800.0.33.1) configuration: --enable-lto libavutil 55. 29.100 / 55. 29.100 libavcodec 57. 54.100 / 57. 54.100 libavformat57. 48.100 / 57. 48.100 libavdevice57. 0.102 / 57. 0.102 libavfilter 6. 55.100 / 6. 55.100 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 Process 83355 stopped * thread #1: tid = 0x639aa, 0x000100916541 ffmpeg_g`ff_mpv_common_init + 1105, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT) frame #0: 0x000100916541 ffmpeg_g`ff_mpv_common_init + 1105 ffmpeg_g`ff_mpv_common_init: -> 0x100916541 <+1105>: movdqa %xmm0, 0xaa8(%rbx) 0x100916549 <+1113>: leaq -0x291eb0(%rip), %rax ; put_h264_chroma_mc4_8_c 0x100916550 <+1120>: movd %rax, %xmm0 0x100916555 <+1125>: leaq -0x2923bc(%rip), %rax ; put_h264_chroma_mc8_8_c (lldb) thread backtrace all * thread #1: tid = 0x639aa, 0x000100916541 ffmpeg_g`ff_mpv_common_init + 1105, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT) * frame #0: 0x000100916541 ffmpeg_g`ff_mpv_common_init + 1105 frame #1: 0x000100631ead ffmpeg_g`ff_h263_decode_frame + 4077 frame #2: 0x000100a9d7ef ffmpeg_g`avcodec_decode_video2 + 383 frame #3: 0x000100a9f51b ffmpeg_g`do_decode + 107 frame #4: 0x0001004136ba ffmpeg_g`try_decode_frame + 826 frame #5: 0x000100411128 ffmpeg_g`avformat_find_stream_info + 3624 frame #6: 0x00010010e605 ffmpeg_g`open_input_file + 1893 frame #7: 0x00010010fd74 ffmpeg_g`open_files + 244 frame #8: 0x00010011b805 ffmpeg_g`main + 3429 frame #9: 0x7fffc5a09255 libdyld.dylib`start + 1 (lldb) ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Compiling FFMPEG 2.8.7 fails testing
Hi! 2016-08-25 13:26 GMT+02:00 MacFH - C E Macfarlane : > I know that this group only applies to latest gits, but I'm not ready to use > FFMPEG v3, and so am using the last version of 2, and searching for this > error didn't find anything useful, so I hope you can help ... There are three possibilities: There is a bug in 2.8 that was fixed meanwhile. If you test current git head, you will immediately find out and be able to fix your issue. (No effort for me.) The bug you found still exists. In this case, I will try to reproduce, meaning I have to find an arm system, find out which of your compilation option triggers the issue, etc, (A major effort for me.) There is a compiler bug. This situation is more difficult;-( Please make sure you are neither using an old, nor a compiler with a low micro version number. What I am trying to say is: Of course it is easier for me if you do not test current git head, but for FFmpeg users in general (and you), it may make more sense if you'd test it. [...] > ./configure --prefix=/opt/share --enable-libx264 --enable-small > --enable-gpl --enable-shared --disable-debug --disable-runtime-cpudetect > --disable-doc --disable-armv6 --disable-armv6t2 --disable-neon --disable-vfp > --disable-vfpv3 I suspect --disable-runtime-cpudetect is never useful. Are you really using FFmpeg on arm hardware without neon support? [...] > 4) make check This is not the suggested method to test FFmpeg (I sincerely hope it is not mentioned somewhere in the documentation), "make fate" is. To continue tests after a failure, use "make -k fate" (not FFmpeg-related). Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Piping output of ffmpeg into ffmbc
Erik, You have solved my problem. Now i understand how IMX works and now I don't have to rely on a pipe from ffmpeg to ffmbc in order to process certain files. In fact i'll just use ffmpeg for everything, even what was working with ffmbc. The quality from ffmpeg looks slightly better to me. One last question. Is there a website dedicated to encoding media for Avid, and other broadcast devices, with ffmpeg. I know there is the ffmpeg manual but that is a bit overwhelming and doesn't deal with requirments Avid has. When i last researched this not to long ago I found ffmbc and i thought that ffmpeg could do produce media for fast import in Avid. Obviously this was wrong. The reason I ask is because i feel at some point my boss is going to want me to start processing archival thats HD for Avid so it would be good to start learning. Thanks for all your help. On Thu, Aug 25, 2016 at 3:48 AM, Erik Dobberkau wrote: > 2016-08-24 22:12 GMT+02:00 Keith Reilly : > > > with line 5 I get an error from the output of ffmpeg: > > [NULL @ 0x7ff76100d200] Unable to find a suitable output format for > > '[-rc_max_vbv_use' > > [-rc_max_vbv_use: Invalid argument > > > > Keith, > > I was using square brackets to indicate these parameters as optional, so > you need to leave these square brackets out if you want to apply the > parameters. > > With your video filters line, "scale=720:576:interl=0:in_ > > color_matrix=bt709:out_color_matrix=bt601,pad=720:608:0:32, > > tinterlace=4:flags=vlpf,setdar=16/9", i changed scale=720:576 to 720:486 > > since when i looked up what the NTSC standard for IMX was i read it was > > 720X486. This worked find with your padding but when i take that out Avid > > will fast import but not playback. After comparing this output from > ffmpeg > > (720x486 with no padding) to the ffmbc counterpart i saw that the > > resolution of ffmbc was actually 720x512. So when I changed this in > ffmpeg, > > scale=720:512, i can fast import and playback just fine. The problem > there > > is that the aspect ratio is slightly off and the very top of the image is > > cut off. Also i took note that Avid reports this file with a raster of > > 720x486 even though it is clearly 720x512. > > My conclusion is that with Avid, when using the IMX format, it > will > > ignore the top 24 lines of resolution. So I need to create a video that > > has, at least for NTSC, 24 lines of padding at the top since Avid will > > treat the video as 720:486 by cutting off the top. > > > This seems insane but that is what i'm looking at. I can clearly see the > > top of the video in VLC > > but in Avid it is gone. And I think the reason why the image is not > > centered with your command is because i change the scale for NTSC but not > > the padding and it threw everything off. Is this correct? It looks like > it > > is to me from all the testing i did but it seems so strange that things > > would behave this way. I tried to google this but it did not clear > anything > > up. > > > > > > Well, you almost got it. IMX format requires VBI to be put somewhere, > that's why you have 486 lines (not 480 as I stated previously) of active > video and 26 black lines at the top (in NTSC). Avid MC reports active video > frame size. VLC is "stupid" and will display the whole video frame, > including areas which in terms of broadcast video are inactive and will be > cut off after transmission. (It's always helpful to know how stuff was done > before there were -almost- only files.) > In conclusion you need to scale your video to 720x486 and the add 26 (not > 24) lines/pixels at the top when encoding. > This is not insane at all, it just makes IMX a not-so-easy format to > handle. If you apply said changes to your command it should work out. > > Erik > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Decklink Recording Yields No Audio
Hi, I assume that you have correctly set the audio to embedded in Desktop Video Utility ? Your console ouput is what I get with my decklink card (studio 4k) which is working fine for audio capture. The audio input stream is recognized. The Shuttle is notoriously bugged. Do you capture audio in other applications ? ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Decklink Recording Yields No Audio
Adam Lott wrote: >I'm >including screenshots of my results to better show what >happened. Please copy and paste the console output on this list. This makes answering much easier. Thank you! Reto ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] Compiling FFMPEG 2.8.7 fails testing
I know that this group only applies to latest gits, but I'm not ready to use FFMPEG v3, and so am using the last version of 2, and searching for this error didn't find anything useful, so I hope you can help ... I'm trying to test an apparently successful compilation of FFMPEG v2.8.7 on a NAS with ARM hardware, as follows: 1) Apparently successfully, I've compiled and installed x264. 2) Configured FFMPEG as follows (have to cut down the exec size because this is a NAS with limited resources): ./configure --prefix=/opt/share --enable-libx264 --enable-small --enable-gpl --enable-shared --disable-debug --disable-runtime-cpudetect --disable-doc --disable-armv6 --disable-armv6t2 --disable-neon --disable-vfp --disable-vfpv3 3) make ... apparently successful. 4) make check ... fails with ... TESTapi-flac Test api-flac failed. Look at tests/data/fate/api-flac.err for details ... but following help previously given here tried both ... make SAMPLES=fate-suite fate-rsync make SAMPLES=fate-suite fate ... and (but shouldn't 'make check' be configuring itself to use the newly built libraries so that I shouldn't need to give the first command explicitly?) ... export LD_LIBRARY_PATH="/root/build/ffmpeg-2.8.7/libavcodec:/root/build/ffmpeg-2.8. 7/libavdevice: /root/build/ffmpeg-2.8.7/libavfilter:/root/build/ffmpeg-2.8.7/libavformat:/r oot/build/ffmpeg-2.8.7/libavresample:/root/b uild/ffmpeg-2.8.7/libavutil:/root/build/ffmpeg-2.8.7/libpostproc:/root/build /ffmpeg-2.8.7/library.mak:/root/build/ffmpeg -2.8.7/libswresample:/root/build/ffmpeg-2.8.7/libswscale:/opt/share/lib:/opt /lib:/usr/lib:/usr/local/lib:/var/lib:/lib:/ usr/local/zy-pkgs/lib:/opt/arm-none-linux-gnueabi/lib" make check .., and both methods now fail with ... TESTfilter-pixfmts-pullup --- ./tests/ref/fate/filter-pixfmts-pullup 2016-03-29 03:25:35.0 +0100 +++ tests/data/fate/filter-pixfmts-pullup 2016-08-24 02:49:02.570659000 +0100 @@ -1,12 +1,12 @@ -gray415c928947f83f9b45c24ad15a094bda -yuv410p 0f29d0b6394871e1e6cde484b4f351f4 -yuv411p ec059b1992e1acda472b9b2dd3e4506b -yuv420p dba6303cd02cc39cb0db7b546793d565 -yuv422p d7d3224dd900bb1b96608a28a704360d -yuv440p d4c5f20701cfceb4bbf7d75cfcc13514 -yuv444p 7e405274037e7f2ab845d7413a71e16d -yuvj411pdc602e7bd3449d16e17e695815616b1e -yuvj420pb98ec86eeef2d512aeb2fc4d32ffa656 -yuvj422pf09c3240bb662477b76ce4da34b4feed -yuvj440p8d3ab69e2bd2f9be323c18922533 -yuvj444p2dc27560eed5d685354796de853c +gray91dc4bbdef5565d3d544fbd518735c8a +yuv410p 63d9ee24a4a9ad1e6bbf7d77804dcf02 +yuv411p 58b3f60a4118e1bf1142037d5c99ce68 +yuv420p c9628343e7f3035c3a8eddac79ce41ee +yuv422p 5c1867e6c9f2e2eb00513ee6474f8e52 +yuv440p bba5c1a2a0058f248eee59a0bcca7a0e +yuv444p 4ca3403246cce4686718489f33477efd +yuvj411p5f7913849fbce83f76e93f9db8800a77 +yuvj420pbaadc4d8ec958ff0d02f8cd48686f85b +yuvj422pa8a620f543221d87c187fb79506b2f92 +yuvj440pa76f545076ef075035fa2f0adc2af349 +yuvj444pa09d8823efe444ae15d9cdc26e8a3158 Test filter-pixfmts-pullup failed. Look at tests/data/fate/filter-pixfmts-pullup.err for details. Here's the contents of tests/data/fate/filter-pixfmts-pullup.err: detected 1 logical cores [scale @ 0x111080] w:iw h:ih flags:'bilinear' interl:0 detected 1 logical cores [scale @ 0x111080] w:iw h:ih flags:'bilinear' interl:0 detected 1 logical cores ffmpeg version 2.8.7 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.2.3 (GCC) configuration: --prefix=/opt/share --enable-libx264 --enable-small --enable-gpl --enable-nonfree --enable-shared --disable-debug --disable-runtime-cpudetect --disable-doc --disable-armv6 --disable-armv6t2 --disable-neon --disable-vfp --disable-vfpv3 libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100 libavformat56. 40.101 / 56. 40.101 libavdevice56. 4.100 / 56. 4.100 libavfilter 5. 40.101 / 5. 40.101 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 libpostproc53. 3.100 / 53. 3.100 Input #0, image2, from '/root/build/ffmpeg-2.8.7/tests/vsynth1/%02d.pgm': Duration: 00:00:02.00, start: 0.00, bitrate: N/A Stream #0:0: Video: pgmyuv, yuv420p, 352x288, 25 fps, 25 tbr, 25 tbn, 25 tbc [Parsed_telecine_0 @ 0x79580] Telecine pattern 23 yields up to 2 frames per frame, pts advance factor: 4/5 Output #0, nut, to 'md5:': Stream #0:0: Video: rawvideo (Y800 / 0x30303859), gray, 352x288, q=2-31, 200 kb/s, 31.25 fps, 64k tbn, 31.25 tbc Metadata: encoder : Lavc rawvideo Stream mapping: Stream #0:0 -> #0:0 (pgmyuv (native) -> rawvideo (native)) frame= 25 fps= 11 q=-0.0 Lsize=2476kB time
Re: [FFmpeg-user] Piping output of ffmpeg into ffmbc
2016-08-24 22:12 GMT+02:00 Keith Reilly : > with line 5 I get an error from the output of ffmpeg: > [NULL @ 0x7ff76100d200] Unable to find a suitable output format for > '[-rc_max_vbv_use' > [-rc_max_vbv_use: Invalid argument > Keith, I was using square brackets to indicate these parameters as optional, so you need to leave these square brackets out if you want to apply the parameters. With your video filters line, "scale=720:576:interl=0:in_ > color_matrix=bt709:out_color_matrix=bt601,pad=720:608:0:32, > tinterlace=4:flags=vlpf,setdar=16/9", i changed scale=720:576 to 720:486 > since when i looked up what the NTSC standard for IMX was i read it was > 720X486. This worked find with your padding but when i take that out Avid > will fast import but not playback. After comparing this output from ffmpeg > (720x486 with no padding) to the ffmbc counterpart i saw that the > resolution of ffmbc was actually 720x512. So when I changed this in ffmpeg, > scale=720:512, i can fast import and playback just fine. The problem there > is that the aspect ratio is slightly off and the very top of the image is > cut off. Also i took note that Avid reports this file with a raster of > 720x486 even though it is clearly 720x512. > My conclusion is that with Avid, when using the IMX format, it will > ignore the top 24 lines of resolution. So I need to create a video that > has, at least for NTSC, 24 lines of padding at the top since Avid will > treat the video as 720:486 by cutting off the top. > This seems insane but that is what i'm looking at. I can clearly see the > top of the video in VLC > but in Avid it is gone. And I think the reason why the image is not > centered with your command is because i change the scale for NTSC but not > the padding and it threw everything off. Is this correct? It looks like it > is to me from all the testing i did but it seems so strange that things > would behave this way. I tried to google this but it did not clear anything > up. > > Well, you almost got it. IMX format requires VBI to be put somewhere, that's why you have 486 lines (not 480 as I stated previously) of active video and 26 black lines at the top (in NTSC). Avid MC reports active video frame size. VLC is "stupid" and will display the whole video frame, including areas which in terms of broadcast video are inactive and will be cut off after transmission. (It's always helpful to know how stuff was done before there were -almost- only files.) In conclusion you need to scale your video to 720x486 and the add 26 (not 24) lines/pixels at the top when encoding. This is not insane at all, it just makes IMX a not-so-easy format to handle. If you apply said changes to your command it should work out. Erik ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
