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Valkaama DVD Label
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Autres articles (17)
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Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
Sur d’autres sites (5002)
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ffmpeg converting JPG slideshow to H264
22 décembre 2018, par pholI am trying to convert a set of jpg files to a slideshow with varying durations using ffconcat
output.txt contents :
ffconcat version 1.0
file slide_0001.jpg
duration 0.163
file slide_0002.jpg
duration 0.533
file slide_0003.jpg
duration 1.067
file slide_0004.jpg
duration 0.533
file slide_0005.jpg
etc.FFmpeg command :
ffmpeg -i output.txt output.mkv
I also tried :
ffmpeg -i output.txt -c:v copy output.mkv
However, when converting, the colours of the images become skewed.
White becomes pink / purple and dark green becomes light green.
The same happens when choosing different codecs and containers.
Is there a way to solve this ?EDIT :
I performed the same conversion again. I attached the log output as requested.
However, in the meantime I have figured out that converting without ffconcat duration and then altering timecodes with mp4fpsmod is more efficient in terms of storage (3 vs 40 MB) and gives less issues in different players. The result is nonetheless the same : colours are still wrong, both on my workstation (Ubuntu 18.04) and laptop (macOS Mojave).I tried to alter things with
pix_fmt
and-vf format
as can be seen in the second log output. This did not solve the problem.Background info :
The input jpg files are from a lecture recording made with MediaSite, which has both a video stream for the room as well as this slideshow stream for the slides.Example of input :
Example of output :
log output MKV conversion :$ ffmpeg -i outputnew.txt output12345.mkv
ffmpeg version 4.1 Copyright (c) 2000-2018 the FFmpeg developers
built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gpl --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-opencl --enable-videotoolbox
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Input #0, concat, from 'outputnew.txt':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 1280x720, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x7fb284802800] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7fb284802800] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit
[libx264 @ 0x7fb284802800] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, matroska, to 'output12345.mkv':
Metadata:
encoder : Lavf58.20.100
Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuvj444p(pc), 1280x720, q=-1--1, 25 fps, 1k tbn, 25 tbc
Metadata:
encoder : Lavc58.35.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
[mjpeg @ 0x7fb284061200] EOI missing, emulating=00:02:12.96 bitrate= 491.3kbits/s speed=14.3x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 487.2kbits/s speed=14.3x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 333.0kbits/s speed=22.3x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 338.8kbits/s speed=22.7x
Last message repeated 2 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 164.7kbits/s speed=41.6x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 122.7kbits/s speed=55.7x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 111.2kbits/s speed=60.5x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 105.3kbits/s speed=64.4x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 82.2kbits/s speed=82.7x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 79.7kbits/s speed=85.8x
Last message repeated 2 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 59.7kbits/s speed= 114x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 53.8kbits/s speed= 127x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 54.7kbits/s speed= 124x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 47.1kbits/s speed= 143x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 47.0kbits/s speed= 144x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 44.6kbits/s speed= 151x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 34.4kbits/s speed= 194x
Last message repeated 2 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 32.9kbits/s speed= 204x
Last message repeated 2 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 32.8kbits/s speed= 203x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 32.6kbits/s speed= 202x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 28.8kbits/s speed= 229x
Last message repeated 2 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 27.9kbits/s speed= 236x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 27.9kbits/s speed= 233x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 23.9kbits/s speed= 274x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 24.2kbits/s speed= 273x
Last message repeated 2 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 24.2kbits/s speed= 274x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 24.0kbits/s speed= 276x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 24.2kbits/s speed= 273x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 23.6kbits/s speed= 278x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 23.7kbits/s speed= 279x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 23.6kbits/s speed= 279x
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 24.0kbits/s speed= 276x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 23.5kbits/s speed= 281x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 20.4kbits/s speed= 325x
[mjpeg @ 0x7fb28502a000] EOI missing, emulating
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 20.1kbits/s speed= 329x
Last message repeated 1 times
[matroska @ 0x7fb284812e00] Starting new cluster due to timestampte= 20.1kbits/s speed= 330x
frame= 635 fps= 14 q=-1.0 Lsize= 37389kB time=04:22:06.76 bitrate= 19.5kbits/s speed= 343x
video:37378kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.029620%
[libx264 @ 0x7fb284802800] frame I:16 Avg QP:11.98 size:154224
[libx264 @ 0x7fb284802800] frame P:184 Avg QP:13.30 size: 79029
[libx264 @ 0x7fb284802800] frame B:435 Avg QP:13.19 size: 48887
[libx264 @ 0x7fb284802800] consecutive B-frames: 6.0% 4.4% 10.9% 78.7%
[libx264 @ 0x7fb284802800] mb I I16..4: 55.7% 0.0% 44.3%
[libx264 @ 0x7fb284802800] mb P I16..4: 32.4% 0.0% 21.5% P16..4: 13.3% 15.1% 11.3% 0.0% 0.0% skip: 6.4%
[libx264 @ 0x7fb284802800] mb B I16..4: 17.8% 0.0% 7.2% B16..8: 19.1% 19.4% 6.5% direct:14.6% skip:15.3% L0:47.0% L1:38.9% BI:14.1%
[libx264 @ 0x7fb284802800] coded y,u,v intra: 63.7% 26.1% 56.3% inter: 46.5% 24.6% 43.5%
[libx264 @ 0x7fb284802800] i16 v,h,dc,p: 19% 18% 58% 4%
[libx264 @ 0x7fb284802800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 20% 25% 4% 4% 3% 3% 3% 3%
[libx264 @ 0x7fb284802800] Weighted P-Frames: Y:5.4% UV:5.4%
[libx264 @ 0x7fb284802800] ref P L0: 43.2% 4.4% 30.8% 21.4% 0.2%
[libx264 @ 0x7fb284802800] ref B L0: 64.1% 27.3% 8.6%
[libx264 @ 0x7fb284802800] ref B L1: 85.3% 14.7%
[libx264 @ 0x7fb284802800] kb/s:19.25Log output mp4 conversion :
$ ffmpeg -i slide_%04d.jpg -vf format=rgba -pix_fmt yuv420p -vcodec libx264 -movflags +faststart -preset veryslow output12345.mp4
ffmpeg version 4.1 Copyright (c) 2000-2018 the FFmpeg developers
built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gpl --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-opencl --enable-videotoolbox
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Input #0, image2, from 'slide_%04d.jpg':
Duration: 00:00:25.36, start: 0.000000, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 1280x720, 25 fps, 25 tbr, 25 tbn, 25 tbc
File 'output12345.mp4' already exists. Overwrite ? [y/N] y
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[swscaler @ 0x7fb7e280b000] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 0x7fb7e1803c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7fb7e1803c00] profile High, level 5.0
[libx264 @ 0x7fb7e1803c00] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=16 deblock=1:0:0 analyse=0x3:0x133 me=umh subme=10 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=24 chroma_me=1 trellis=2 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=8 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=60 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'output12345.mp4':
Metadata:
encoder : Lavf58.20.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720, q=-1--1, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc58.35.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
[mp4 @ 0x7fb7e1801800] Starting second pass: moving the moov atom to the beginning of the file
frame= 634 fps=8.5 q=-1.0 Lsize= 2252kB time=00:00:25.24 bitrate= 731.0kbits/s speed=0.337x
video:2245kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.307448%
[libx264 @ 0x7fb7e1803c00] frame I:5 Avg QP:19.12 size: 49393
[libx264 @ 0x7fb7e1803c00] frame P:131 Avg QP:22.18 size: 9379
[libx264 @ 0x7fb7e1803c00] frame B:498 Avg QP:23.78 size: 1652
[libx264 @ 0x7fb7e1803c00] consecutive B-frames: 3.2% 1.6% 3.3% 29.7% 7.9% 16.1% 7.7% 16.4% 14.2%
[libx264 @ 0x7fb7e1803c00] mb I I16..4: 45.7% 37.9% 16.4%
[libx264 @ 0x7fb7e1803c00] mb P I16..4: 6.0% 5.3% 1.3% P16..4: 19.9% 1.9% 3.7% 0.3% 0.1% skip:61.5%
[libx264 @ 0x7fb7e1803c00] mb B I16..4: 0.3% 0.4% 0.1% B16..8: 17.5% 1.0% 0.2% direct: 0.3% skip:80.2% L0:52.3% L1:46.9% BI: 0.8%
[libx264 @ 0x7fb7e1803c00] 8x8 transform intra:43.0% inter:48.9%
[libx264 @ 0x7fb7e1803c00] direct mvs spatial:99.2% temporal:0.8%
[libx264 @ 0x7fb7e1803c00] coded y,uvDC,uvAC intra: 16.9% 25.8% 16.6% inter: 1.1% 1.9% 1.2%
[libx264 @ 0x7fb7e1803c00] i16 v,h,dc,p: 61% 28% 6% 6%
[libx264 @ 0x7fb7e1803c00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 9% 50% 3% 4% 3% 3% 3% 5%
[libx264 @ 0x7fb7e1803c00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 23% 19% 5% 7% 6% 6% 5% 10%
[libx264 @ 0x7fb7e1803c00] i8c dc,h,v,p: 46% 40% 13% 1%
[libx264 @ 0x7fb7e1803c00] Weighted P-Frames: Y:5.3% UV:5.3%
[libx264 @ 0x7fb7e1803c00] ref P L0: 33.2% 3.1% 11.6% 7.3% 8.8% 6.4% 6.5% 3.1% 3.2% 2.6% 2.4% 2.5% 2.8% 2.8% 2.3% 1.4%
[libx264 @ 0x7fb7e1803c00] ref B L0: 42.0% 15.1% 12.0% 5.4% 4.9% 4.3% 4.0% 1.9% 2.0% 1.8% 1.7% 1.8% 1.7% 1.1% 0.5%
[libx264 @ 0x7fb7e1803c00] ref B L1: 83.5% 16.5%
[libx264 @ 0x7fb7e1803c00] kb/s:725.10Player :
QuickTime, VLC and Kodi on both Linux and Mac.EDIT 2 :
Input files : https://drive.google.com/open?id=1kbBkSDSwe6ywgQ8lkjqkh-MKCzGA4bj8 -
unable to steam rtsp from mp4(h264) file using ffmpeg on os x : Connection refused Could not write header for output file
28 janvier 2023, par TalGim ussing the following command on my macbook os high sierra to stream rtsp from mp4 file using ffmpeg :


sudo ffmpeg -re -i ./Big_Buck_Bunny_1080_10s_1MB.mp4 -c:v libx264 -preset superfast -tune zerolatency -c:a aac -ar 44100 -f rtsp -rtsp_transport udp rtsp://127.0.0.1:8888/live



but get the following error :


[tcp @ 0x7fb979e22ec0] Connection to tcp://127.0.0.1:1935?timeout=0 failed: Connection refused
Could not write header for output file #0 (incorrect codec parameters ?): Connection refused
Error initializing output stream 0:0 -- 
Conversion failed!



here is the whole output of the command :


ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
 built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
 configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.1 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
 libavutil 56. 51.100 / 56. 51.100
 libavcodec 58. 91.100 / 58. 91.100
 libavformat 58. 45.100 / 58. 45.100
 libavdevice 58. 10.100 / 58. 10.100
 libavfilter 7. 85.100 / 7. 85.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 7.100 / 5. 7.100
 libswresample 3. 7.100 / 3. 7.100
 libpostproc 55. 7.100 / 55. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './Big_Buck_Bunny_1080_10s_1MB.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 title : Big Buck Bunny, Sunflower version
 artist : Blender Foundation 2008, Janus Bager Kristensen 2013
 composer : Sacha Goedegebure
 encoder : Lavf57.63.100
 comment : Creative Commons Attribution 3.0 - http://bbb3d.renderfarming.net
 genre : Animation
 Duration: 00:00:10.00, start: 0.000000, bitrate: 815 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 812 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
 Metadata:
 handler_name : VideoHandler
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x7fb97a00de00] using SAR=1/1
[libx264 @ 0x7fb97a00de00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7fb97a00de00] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x7fb97a00de00] 264 - core 160 r3011 cde9a93 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x3 me=dia subme=1 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=12 lookahead_threads=12 sliced_threads=1 slices=12 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=1 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[tcp @ 0x7fb979e22ec0] Connection to tcp://127.0.0.1:1935?timeout=0 failed: Connection refused
Could not write header for output file #0 (incorrect codec parameters ?): Connection refused
Error initializing output stream 0:0 -- 
Conversion failed!



tried with and without sudo, tried changing rtsp ://... to http://
also tried udp but get same output..


chacked that the port is not in use(8888) and different ports (1935...) but still the same.


i installed ffmpeg via brew install...


when i run some test server on my localhost i never have issues ussing an unused port


really stuck here and any help would be amazing...thank you


EDIT :
Problem was in the command i used : "rtsp ://127.0.0.1:8888/live" - but i did not have a running server capable of accepting the data from ffmpeg and redestributing it - so i had to first run such server and only after that to run ffmpeg :


Servers which can receive from FFmpeg (to restream to multiple clients) include ffserver (linux only, though with cygwin it might work on windows), or Wowza Media Server, or Flash Media Server, Red5, or various others. Even VLC can pick up the stream from ffmpeg, then redistribute it, acting as a server.


i used the VLC option. You can read about it here : http://trac.ffmpeg.org/wiki/StreamingGuide


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ffmpeg blured bars on vertical movie - Error while opening encoder
14 mars 2021, par hexedecimalI'm trying to use ffmpeg to prepare a mp4 file which is vertical recorded for upload to youtube.
(on a synology DS220+)
In the output file I want to have no black bars on the side but blured sodebars of the movie itself.
This I'm trying to do whit this code (in the end I want to automate this process, but maybe there is a better way to do this) :


ffmpeg -i input.mp4 -lavfi "[0:v]scale=1920*2:1080*2,boxblur=luma_radius=min(h\,w)/20:luma_power=1:chroma_radius=min(cw\,ch)/20:chroma_power=1[bg];[0:v]scale=-1:1080[ov];[bg][ov]overlay=(W-w)/2:(H-h)/2,crop=w=1920:h=1080" output.mp4 



unfortunaly i get a error message :


Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height



In mine search on the internet I have tried multiple ways to get this done but whit all the same error result.
This was making me think that the ffmpeg install is faulty or I was trying wrong code.


Could somebody help me whit this "project"


full responce below :


username@ip:/volume1/location$ ffmpeg -i input.mp4 -lavfi "[0:v]scale=1920*2:1080*2,boxblur=luma_radius=min(h\,w)/20:luma_power=1:chroma_radius=min(cw\,ch)/20:chroma_power=1[bg];[0:v]scale=-1:1080[ov];[bg][ov]overlay=(W-w)/2:(H-h)/2,crop=w=1920:h=1080" output.mp4
ffmpeg version 2.7.7 Copyright (c) 2000-2015 the FFmpeg developers
 built with gcc 4.9.3 (crosstool-NG 1.20.0) 20150311 (prerelease)
 configuration: --prefix=/usr --incdir='${prefix}/include/ffmpeg' --arch=i686 --target-os=linux --cross-prefix=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu- --enable-cross-compile --enable-optimizations --enable-pic --enable-gpl --enable-shared --disable-static --enable-version3 --enable-nonfree --enable-libfaac --enable-encoders --enable-pthreads --disable-bzlib --disable-protocol=rtp --disable-muxer=image2 --disable-muxer=image2pipe --disable-swscale-alpha --disable-ffserver --disable-ffplay --disable-doc --disable-devices --disable-bzlib --disable-altivec --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --disable-vaapi --disable-decoder=amrnb --disable-decoder=ac3 --disable-decoder=ac3_fixed --disable-encoder=zmbv --disable-encoder=dca --disable-encoder=ac3 --disable-encoder=ac3_fixed --disable-encoder=eac3 --disable-decoder=dca --disable-decoder=eac3 --disable-decoder=truehd --disable-decoder=hevc --disable-muxer=hevc --disable-demuxer=hevc --disable-parser=hevc --cc=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-ccache-gcc --enable-yasm --enable-libx264 --enable-encoder=libx264
 libavutil 54. 27.100 / 54. 27.100
 libavcodec 56. 41.100 / 56. 41.100
 libavformat 56. 36.100 / 56. 36.100
 libavdevice 56. 4.100 / 56. 4.100
 libavfilter 5. 16.101 / 5. 16.101
 libswscale 3. 1.101 / 3. 1.101
 libswresample 1. 2.100 / 1. 2.100
 libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf56.36.100
 Duration: 00:00:36.12, start: 0.000000, bitrate: 2529 kb/s
 Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt709/bt709), 406x720 [SAR 405:406 DAR 9:16], 2394 kb/s, 30 fps, 30 tbr, 12k tbn, 60 tbc (default)
 Metadata:
 handler_name : VideoHandler
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
File 'output.mp4' already exists. Overwrite ? [y/N] y
[libx264 @ 0x1cdc4a0] using SAR=81/256
[libx264 @ 0x1cdc4a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0x1cdc4a0] profile High, level 4.0
[libx264 @ 0x1cdc4a0] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'output.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf56.36.100
 Stream #0:0: Video: h264 (libx264), yuv420p, 1920x1080 [SAR 81:256 DAR 9:16], q=-1--1, 30 fps, 30 tbn, 30 tbc (default)
 Metadata:
 encoder : Lavc56.41.100 libx264
 Stream #0:1(und): Audio: aac, 0 channels, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 encoder : Lavc56.41.100 libfaac
Stream mapping:
 Stream #0:0 (h264) -> scale (graph 0)
 Stream #0:0 (h264) -> scale (graph 0)
 crop (graph 0) -> Stream #0:0 (libx264)
 Stream #0:1 -> #0:1 (aac (native) -> aac (libfaac))
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height