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Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
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
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How do I properly reduce the resolution of a 360 video using ffmpeg ?
10 avril 2017, par user3799235I have tried reduction with the following technique from a scale of
2048:1024with something like :ffmpeg -i eagle360half.mp4 -vf scale=1024:512 video360_1024.mp4however the playback then becomes warped and warbly (visually similar to a bad vhs tape). I can only speculate that this has something to do with the meridians and equirectangular projections. How would I properly scale/ reduce resolution of a 360 video usingffmpeg, or is this possible with some other cli tool ?Here is the output of mediainfo, ffmpeg, and then mediainfo again :
#######################MEDIAINFO OUTPUT PRE-ENCODING#################
$ mediainfo 360timessquare.mp4
General
Complete name : 360timessquare.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 235 MiB
Duration : 14mn 18s
Overall bit rate mode : Variable
Overall bit rate : 2 297 Kbps
Encoded date : UTC 2016-10-21 19:11:41
Tagged date : UTC 2016-10-21 19:11:41
gsst : 0
gstd : 858209
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 14mn 18s
Bit rate : 2 168 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.094
Stream size : 222 MiB (94%)
Title : ISO Media file produced by Google Inc.
Encoded date : UTC 2016-10-21 19:11:41
Tagged date : UTC 2016-10-21 19:11:41
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 14mn 18s
Bit rate mode : Variable
Bit rate : 126 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 12.8 MiB (5%)
Title : ISO Media file produced by Google Inc.
Encoded date : UTC 2016-10-21 19:11:41
Tagged date : UTC 2016-10-21 19:11:41
########################FFMPEG LOG:#############################
$ffmpeg -i 360timessquare.mp4 -s 542x320 -o 360timessquare542x320.mp4
ffmpeg version 2.4 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 26 2015 22:27:26 with gcc 4.8.3 (GCC) 20140911 (Red Hat 4.8.3-9)
configuration: --prefix=/usr --bindir=/usr/bin --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libfreetype --enable-fontconfig --enable-libspeex --enable-libtheora --enable-frei0r --enable-libopencv --enable-zlib --enable-shared --disable-htmlpages --disable-podpages --disable-txtpages
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Unrecognized option 'o'.
Error splitting the argument list: Option not found
[kevin@clipcentric 360Video]$ ffmpeg -i 360timessquare.mp4 -vf -s 542x320 360timessquare542x320.mp4
ffmpeg version 2.4 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 26 2015 22:27:26 with gcc 4.8.3 (GCC) 20140911 (Red Hat 4.8.3-9)
configuration: --prefix=/usr --bindir=/usr/bin --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libfreetype --enable-fontconfig --enable-libspeex --enable-libtheora --enable-frei0r --enable-libopencv --enable-zlib --enable-shared --disable-htmlpages --disable-podpages --disable-txtpages
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '360timessquare.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2016-10-21 19:11:41
Duration: 00:14:18.09, start: 0.000000, bitrate: 2296 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 2168 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
[NULL @ 0x14a0120] Unable to find a suitable output format for '542x320'
542x320: Invalid argument
[kevin@clipcentric 360Video]$ ffmpeg -i 360timessquare.mp4 -s 542x320 360timessquare542x320.mp4
ffmpeg version 2.4 Copyright (c) 2000-2014 the FFmpeg developers
built on Sep 26 2015 22:27:26 with gcc 4.8.3 (GCC) 20140911 (Red Hat 4.8.3-9)
configuration: --prefix=/usr --bindir=/usr/bin --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libfreetype --enable-fontconfig --enable-libspeex --enable-libtheora --enable-frei0r --enable-libopencv --enable-zlib --enable-shared --disable-htmlpages --disable-podpages --disable-txtpages
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 1.100 / 56. 1.100
libavformat 56. 4.101 / 56. 4.101
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 1.100 / 5. 1.100
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '360timessquare.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2016-10-21 19:11:41
Duration: 00:14:18.09, start: 0.000000, bitrate: 2296 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 2168 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
[libx264 @ 0x25f7a60] using SAR=2560/2439
[libx264 @ 0x25f7a60] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2 FMA3 LZCNT BMI2
[libx264 @ 0x25f7a60] profile High, level 2.1
[libx264 @ 0x25f7a60] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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 '360timessquare542x320.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
encoder : Lavf56.4.101
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 542x320 [SAR 2560:2439 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
encoder : Lavc56.1.100 libx264
Stream #0:1(und): Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s (default)
Metadata:
creation_time : 2016-10-21 19:11:41
handler_name : ISO Media file produced by Google Inc.
encoder : Lavc56.1.100 libfdk_aac
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
frame=21452 fps= 66 q=-1.0 Lsize= 64454kB time=00:14:18.09 bitrate= 615.3kbits/s
video:50428kB audio:13439kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.918954%
[libx264 @ 0x25f7a60] frame I:86 Avg QP:19.09 size: 45669
[libx264 @ 0x25f7a60] frame P:18026 Avg QP:22.11 size: 2541
[libx264 @ 0x25f7a60] frame B:3340 Avg QP:29.11 size: 572
[libx264 @ 0x25f7a60] consecutive B-frames: 75.9% 6.9% 9.6% 7.6%
[libx264 @ 0x25f7a60] mb I I16..4: 3.4% 30.9% 65.7%
[libx264 @ 0x25f7a60] mb P I16..4: 0.1% 0.3% 0.3% P16..4: 25.1% 6.6% 7.4% 0.0% 0.0% skip:60.2%
[libx264 @ 0x25f7a60] mb B I16..4: 0.0% 0.1% 0.1% B16..8: 13.3% 2.4% 1.3% direct: 1.9% skip:81.0% L0:25.9% L1:66.1% BI: 8.0%
[libx264 @ 0x25f7a60] 8x8 transform intra:38.5% inter:48.3%
[libx264 @ 0x25f7a60] coded y,uvDC,uvAC intra: 81.5% 84.3% 58.6% inter: 14.3% 14.5% 2.8%
[libx264 @ 0x25f7a60] i16 v,h,dc,p: 7% 49% 7% 37%
[libx264 @ 0x25f7a60] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 25% 17% 5% 7% 7% 11% 8% 9%
[libx264 @ 0x25f7a60] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 18% 14% 7% 8% 10% 11% 9% 7%
[libx264 @ 0x25f7a60] i8c dc,h,v,p: 51% 25% 15% 9%
[libx264 @ 0x25f7a60] Weighted P-Frames: Y:1.5% UV:0.3%
[libx264 @ 0x25f7a60] ref P L0: 77.6% 15.9% 5.2% 1.3% 0.0%
[libx264 @ 0x25f7a60] ref B L0: 94.0% 5.1% 0.9%
[libx264 @ 0x25f7a60] ref B L1: 96.1% 3.9%
[libx264 @ 0x25f7a60] kb/s:481.43
#################POST ENCODING #####################
$ mediainfo 360timessquare542x320.mp4
General
Complete name : 360timessquare542x320.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 62.9 MiB
Duration : 14mn 18s
Overall bit rate : 615 Kbps
Encoded date : UTC 1904-01-01 00:00:00
Tagged date : UTC 1904-01-01 00:00:00
Writing application : Lavf56.4.101
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L2.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 14mn 18s
Bit rate : 481 Kbps
Width : 542 pixels
Height : 320 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.111
Stream size : 49.2 MiB (78%)
Writing library : x264 core 142
Encoding settings : 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
Encoded date : UTC 1904-01-01 00:00:00
Tagged date : UTC 1904-01-01 00:00:00
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 14mn 18s
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 13.1 MiB (21%)
Encoded date : UTC 1904-01-01 00:00:00
Tagged date : UTC 1904-01-01 00:00:00 -
FFmpeg rtp streaming opus file problems
22 avril 2017, par Yuriy Aizenbergi have the next situation.
- Have file on remote VPS server.
- I want that this file (opus codec) can be accessible through RTP on my android phone.
-
I tried ffmpeg with next command :
ffmpeg -ar 44800 -i bon_jovi_loverboy.opus -acodec libopus -ac 1 -ab 96k -vn -f rtp rtp://127.0.0.1:5004 -loglevel 56
But got next error :
bon_jovi_loverboy.opus: Invalid data found when processing inputFull log :
root@cs82932 :/home/rstream/rtstream/src# ffmpeg -ar 44800 -i bon_jovi_loverboy.opus -acodec libopus -ac 1 -ab 96k -vn -f rtp rtp ://127.0.0.1:5004 -loglevel 56
ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1 16.04.4) 20160609
configuration : —prefix=/usr —extra-version=0ubuntu0.16.04.1 —build-suffix=-ffmpeg —toolchain=hardened —libdir=/usr/lib/x86_64-linux-gnu —incdir=/usr/include/x86_64-linux-gnu —cc=cc —cxx=g++ —enable-gpl —enable-shared —disable-stripping —disable-decoder=libopenjpeg —disable-decoder=libschroedinger —enable-avresample —enable-avisynth —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-libcdio —enable-libflite —enable-libfontconfig —enable-libfreetype —enable-libfribidi —enable-libgme —enable-libgsm —enable-libmodplug —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-librtmp —enable-libschroedinger —enable-libshine —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libssh —enable-libtheora —enable-libtwolame —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx265 —enable-libxvid —enable-libzvbi —enable-openal —enable-opengl —enable-x11grab —enable-libdc1394 —enable-libiec61883 —enable-libzmq —enable-frei0r —enable-libx264 —enable-libopencv
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Splitting the commandline.
Reading option ’-ar’ ... matched as option ’ar’ (set audio sampling rate (in Hz)) with argument ’44800’.Reading option ’-i’ ... matched as input url with argument ’bon_jovi_loverboy.opus’.
Reading option ’-acodec’ ... matched as option ’acodec’ (force audio codec (’copy’ to copy stream)) with argument ’libopus’.
Reading option ’-ac’ ... matched as option ’ac’ (set number of audio channels) with argument ’1’.
Reading option ’-ab’ ... matched as option ’ab’ (audio bitrate (please use -b:a)) with argument ’96k’.
Reading option ’-vn’ ... matched as option ’vn’ (disable video) with argument ’1’.
Reading option ’-f’ ... matched as option ’f’ (force format) with argument ’rtp’.
Reading option ’rtp ://127.0.0.1:5004’ ... matched as output url.
Reading option ’-loglevel’ ... matched as option ’loglevel’ (set logging level) with argument ’56’.
Finished splitting the commandline.
Parsing a group of options : global .
Applying option loglevel (set logging level) with argument 56.Successfully parsed a group of options.
Parsing a group of options : input url bon_jovi_loverboy.opus.
Applying option ar (set audio sampling rate (in Hz)) with argument 44800.
Successfully parsed a group of options.
Opening an input file : bon_jovi_loverboy.opus.[AVIOContext @ 0x965e60] Statistics : 36389 bytes read, 0 seeks
bon_jovi_loverboy.opus : Invalid data found when processing inputWhat wrong ? Thanks
UPD
I update ffmpeg and streaming looks successfully.
ffmpeg -stream_loop -1 -i 4a6u7-ptl2w.opus -acodec libopus -ac 1 -ab
96k -vn -f rtp rtp://95.213.195.192:5004/f.opus
ffmpeg version 3.2.4-1~16.04.york1 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 5.4.1 (Ubuntu 5.4.1-5ubuntu2~16.04.york1) 20170210
configuration: --prefix=/usr --extra-version='1~16.04.york1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Input #0, ogg, from '4a6u7-ptl2w.opus':
Duration: 00:02:34.21, start: 0.000000, bitrate: 69 kb/s
Stream #0:0: Audio: opus, 48000 Hz, stereo, fltp
Metadata:
ENCODER : Lavc57.77.100 libopus
Output #0, rtp, to 'rtp://95.213.195.192:5004/f.opus':
Metadata:
encoder : Lavf57.56.101
Stream #0:0: Audio: opus (libopus), 48000 Hz, mono, flt, 96 kb/s
Metadata:
encoder : Lavc57.64.101 libopus
SDP:
v=0
o=- 0 0 IN IP4 127.0.0.1
s=No Name
c=IN IP4 95.213.195.192
t=0 0
a=tool:libavformat 57.56.101
m=audio 5004 RTP/AVP 97
b=AS:96
a=rtpmap:97 opus/48000/2
Stream mapping:
Stream #0:0 -> #0:0 (opus (native) -> opus (libopus))
Press [q] to stop, [?] for help
size= 44893kB time=00:52:18.12 bitrate= 117.2kbits/s speed=56.5xBut when i try to connect by rtp from local PC (VLC Player) i get the exception :
core error: socket bind error: Cannot assign requested address
core error: open of `rtp://95.213.195.192:5004/f.opus' failedWhen i try ffplay on remote pc (same where ffmpeg) :
ffplay rtp://95.213.195.192:5004/f.opus
ffplay version 3.2.4-1~16.04.york1 Copyright (c) 2003-2017 the FFmpeg developers
built with gcc 5.4.1 (Ubuntu 5.4.1-5ubuntu2~16.04.york1) 20170210
configuration: --prefix=/usr --extra-version='1~16.04.york1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libavresample 3. 1. 0 / 3. 1. 0
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
Segmentation faultCan you help me ? Thanks
95.213.195.192 - IP of my remote server with file
-
FFMPEG to create an MPEG-DASH stream with VP8
24 avril 2017, par Kenneth WordenI’m trying to use FFMPEG to stream a live video feed from my webcam
/dev/video0. Following scattered tutorials and scarce documentation (is this a known problem for the encoding community ?) I arrived at the following bash script :#!/bin/bash
ffmpeg \
-y \
-f v4l2 \
-i /dev/video0 \
-s 640x480 \
-input_format mjpeg \
-r 24 \
-map 0:0 \
-pix_fmt yuv420p \
-codec:v libvpx \
-s 640x480 \
-threads 4 \
-b:v 50k \
-tile-columns 4 \
-frame-parallel 1 \
-keyint_min 24 -g 24 \
-f webm_chunk \
-header "stream.hdr" \
-chunk_start_index 1 \
stream_%d.chk &
sleep 2
ffmpeg \
-f webm_dash_manifest -live 1 \
-i stream.hdr \
-c copy \
-map 0 \
-f webm_dash_manifest -live 1 \
-adaptation_sets "id=0,streams=0" \
-chunk_start_index 1 \
-chunk_duration_ms 1000 \
-time_shift_buffer_depth 30000 \
-minimum_update_period 60000 \
stream_manifest.mpdWhen I run this script, my webcam light turns on, the
stream.hdrandstream_manifest.mpdfiles are written, and chunks start to be created (i.e.stream_1.chk,stream_2.chk, etc...). However, FFMPEG throws the following error :Could not write header for output file #0 (incorrect codec parameters
?) : Invalid data found when processing inputI will explain what I think I am doing with this script, and hopefully this will expose any errors in my thinking.
First, we invoke FFMPEG to use Video for Linux 2 (v4l2) to read from my webcam (
/dev/video0) of a resolution 640x480. The input format ismjpegwith a framerate of 24fps.I then declare that FFMPEG should "map" (copy) the video stream output by v4l2 to a file. I specify the pixel format (YUV420P) and use libvpx (VP8 encoding) to encode the video stream. I set the size to be 640x480, use 4 threads, set the bitrate to be 50kbps, do some magic with tile-columns and frame-parallel options, and set the I-frames to be 24 frames apart.
I then create a
stream.hdrfile. The starting index is 1. This command continues to run infinitely until I kill it, grabbing new video from my webcam and outputting it into chunks.I then sleep for 2 seconds to give the previous command time to generate a header file.
And that’s really it. The next invocation of FFMPEG simply creates the MPEG-DASH manifest file given the header generated in the previous step.
So what’s going on ? Why can I not view the video in a web browser (I’m using Dash.js) ? I serve the manifest, header, and chunks on a Node.js server so that trivial issue is not the problem.
Edit : Here is my full console output.
ffmpeg version 3.0.7-0ubuntu0.16.10.1 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 6.2.0 (Ubuntu 6.2.0-5ubuntu12) 20161005
configuration: --prefix=/usr --extra-version=0ubuntu0.16.10.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librubberband --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-chromaprint --enable-libx264
libavutil 55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat 57. 25.100 / 57. 25.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 31.100 / 6. 31.100
libavresample 3. 0. 0 / 3. 0. 0
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
[video4linux2,v4l2 @ 0x55847e244ea0] The driver changed the time per frame from 1/24 to 1/30
[mjpeg @ 0x55847e245c00] Changing bps to 8
Input #0, video4linux2,v4l2, from '/dev/video0':
Duration: N/A, start: 64305.102081, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 640x480, -5 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
Codec AVOption frame-parallel (Enable frame parallel decodability features) specified for output file #0 (stream_%d.chk) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
Codec AVOption tile-columns (Number of tile columns to use, log2) specified for output file #0 (stream_%d.chk) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
[swscaler @ 0x55847e24b720] deprecated pixel format used, make sure you did set range correctly
[libvpx @ 0x55847e248a20] v1.5.0
Output #0, webm_chunk, to 'stream_%d.chk':
Metadata:
encoder : Lavf57.25.100
Stream #0:0: Video: vp8 (libvpx), yuv420p, 640x480, q=-1--1, 50 kb/s, 30 fps, 30 tbn, 30 tbc
Metadata:
encoder : Lavc57.24.102 libvpx
Side data:
unknown side data type 10 (24 bytes)
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg (native) -> vp8 (libvpx))
Press [q] to stop, [?] for help
frame= 21 fps=0.0 q=0.0 size=N/A time=00:00:00.70 bitrate=N/A dup=5 drop=frame= 36 fps= 35 q=0.0 size=N/A time=00:00:01.20 bitrate=N/A dup=5 drop=frame= 51 fps= 33 q=0.0 size=N/A time=00:00:01.70 bitrate=N/A dup=5 drop=ffmpeg version 3.0.7-0ubuntu0.16.10.1 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 6.2.0 (Ubuntu 6.2.0-5ubuntu12) 20161005
configuration: --prefix=/usr --extra-version=0ubuntu0.16.10.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librubberband --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-chromaprint --enable-libx264
libavutil 55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat 57. 25.100 / 57. 25.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 31.100 / 6. 31.100
libavresample 3. 0. 0 / 3. 0. 0
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, webm_dash_manifest, from 'stream.hdr':
Metadata:
encoder : Lavf57.25.100
Duration: N/A, bitrate: N/A
Stream #0:0: Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
Metadata:
webm_dash_manifest_file_name: stream.hdr
webm_dash_manifest_track_number: 1
Output #0, webm_dash_manifest, to 'stream_manifest.mpd':
Metadata:
encoder : Lavf57.25.100
Stream #0:0: Video: vp8, yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
Metadata:
webm_dash_manifest_file_name: stream.hdr
webm_dash_manifest_track_number: 1
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Could not write header for output file #0 (incorrect codec parameters ?): Invalid data found when processing input
frame= 67 fps= 33 q=0.0 size
frame= 82 fps= 32 q=0.0 size=N/A time=00:00:02.73 bitrate=N/A dup=5 drop=
frame= 97 fps= 32 q=0.0 size=N/A time=00:00:03.23 bitrate=N/A dup=5 drop=
frame= 112 fps= 32 q=0.0 size=N/A time=00:00:03.73 bitrate=N/A dup=5 ...
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