
Recherche avancée
Médias (1)
-
MediaSPIP Simple : futur thème graphique par défaut ?
26 septembre 2013, par
Mis à jour : Octobre 2013
Langue : français
Type : Video
Autres articles (20)
-
Installation en mode ferme
4 février 2011, parLe mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
C’est la méthode que nous utilisons sur cette même plateforme.
L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...) -
Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
La sauvegarde automatique de canaux SPIP
1er avril 2010, parDans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)
Sur d’autres sites (4228)
-
V4l2 to RTSP stream using FFmpeg library ver 5.1
10 août 2022, par wolverinTrying to transcode MJPEG in /dev/video0 to H264 RTSP server


The MJPEG packet is read correctly, transcoded by the procedure below without errors


BUT the image is corrupted after the middle of the picture and freezes




int WriteStream()
{
 int rt = 0;
 int64_t time_start = av_gettime_relative();

 if ((rt = avcodec_send_packet(pInpCdcCtx, pInpPkt)) < 0)
 goto ERROR;

 do {
 rt = avcodec_receive_frame(pInpCdcCtx, pInpFrm);
 if (rt == AVERROR_EOF || rt == AVERROR(EAGAIN))
 break;
 else if (rt < 0)
 goto ERROR_FRM;

int64_t time_dec = av_gettime_relative();

 if (pSwsCtx) /* it is NOT USED now because it is very slow, WHY??? and pOutFrm = pInpFrm */
 {
 pOutFrm->pts = pInpFrm->pts;

 sws_scale(pSwsCtx,
 (const uint8_t * const *) pInpFrm->data, pInpFrm->linesize, 0, pInpCdcCtx->height,
 pOutFrm->data, pOutFrm->linesize);
 }
 else
 {
 pInpFrm->key_frame = 0;
 pInpFrm->pict_type = AV_PICTURE_TYPE_NONE;
 }

int64_t time_sws = av_gettime_relative();


 if ((rt = avcodec_send_frame(pOutCdcCtx, pOutFrm)) < 0)
 goto ERROR_FRM;

 do {
 rt = avcodec_receive_packet(pOutCdcCtx, pOutPkt);
 if (rt == AVERROR_EOF || rt == AVERROR(EAGAIN))
 break;
 else if (rt < 0)
 goto ERROR_PKT;

int64_t time_enc = av_gettime_relative();

 fprintf(stdout, "Packet size inp: %d out: %d bytes Time decode: %.2f scale: %.2f encode: %.2f transcode: %.2f ms ...\r",
 pInpPkt->size, pOutPkt->size, (time_dec - time_start)/1000.0, (time_sws - time_dec)/1000.0, (time_enc - time_sws)/1000.0, (av_gettime_relative() - time_start)/1000.0);

 rt = av_interleaved_write_frame(pOutFmtCtx, pOutPkt);

 av_packet_unref(pOutPkt);
 } while (rt >= 0);

 av_frame_unref(pInpFrm);
 } while (rt >= 0);
 return 0;

ERROR_PKT:
 av_packet_unref(pOutPkt);
ERROR_FRM:
 av_frame_unref(pInpFrm);
ERROR:
 PrintError("Error transcoding", rt);
 return rt;
}



The dump looks like this


Input #0, video4linux2,v4l2, from '/dev/video0':
 Duration: N/A, start: 20815.488118, bitrate: N/A
 Stream #0:0: Video: mjpeg (Baseline), yuvj422p(pc, bt470bg/unknown/unknown), 640x480, 30 fps, 30 tbr, 1000k tbn
[libx264 @ 0x14e12c0] using cpu capabilities: ARMv6 NEON
[libx264 @ 0x14e12c0] profile High 4:2:2, level 3.0, 4:2:2 8-bit
[libx264 @ 0x14e12c0] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=4 lookahead_threads=4 sliced_threads=1 slices=4 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc_lookahead=0 rc=cbr mbtree=0 bitrate=500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=500 vbv_bufsize=1000 nal_hrd=none filler=0 ip_ratio=1.40 aq=0
Output #0, rtsp, to 'rtsp://127.0.0.1:554/cam':
 Stream #0:0: Video: h264, yuv422p(tv, bt470bg/unknown/unknown), 640x480, q=2-31, 500 kb/s, 30 tbr, 90k tbn



The app itself is working fine


./ffmpeg -f v4l2 -input_format mjpeg -video_size 640x480 -i /dev/video0 -c:v libx264 -pix_fmt yuv422p -preset ultrafast -r 30 -b:v 500k -minrate:v 300k -maxrate:v 500k -bufsize 1000k -f rtsp -rtsp_transport udp rtsp ://192.168.36.212:554/cam


maybe somehow it is necessary to set pts, dts and pkt_pos ?


-
ffmpeg overlay png on mp4 on specific time
2 octobre 2018, par Lina Sharifi MoghaddamI am trying to overlay an image on mp4 video from second 3 to the end.
I am using the belowffmpeg -i out.mp4 -i scaledSquare.png -filter_complex " [0:v][1] overlay=100:100:enable=’gte(t,3)’" -y test.mp4
Output is a below, test.mp4 does not have the overlayed shape
ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
libavutil 56. 14.100 / 56. 14.100
libavcodec 58. 18.100 / 58. 18.100
libavformat 58. 12.100 / 58. 12.100
libavdevice 58. 3.100 / 58. 3.100
libavfilter 7. 16.100 / 7. 16.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 1.100 / 5. 1.100
libswresample 3. 1.100 / 3. 1.100
libpostproc 55. 1.100 / 55. 1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.12.100
Duration: 00:00:05.43, start: 0.000000, bitrate: 372 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 3360x2100 [SAR 1:1 DAR 8:5], 40214 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 73 kb/s (default)
Metadata:
handler_name : SoundHandler
Input #1, png_pipe, from 'scaledSquare.png':
Duration: N/A, bitrate: N/A
Stream #1:0: Video: png, rgba(pc), 900x450 [SAR 1:2 DAR 1:1], 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 (h264) -> overlay:main (graph 0)
Stream #1:0 (png) -> overlay:overlay (graph 0)
overlay (graph 0) -> Stream #0:0 (libx264)
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x7f95f0001800] using SAR=1/1
[libx264 @ 0x7f95f0001800] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7f95f0001800] profile High, level 5.1
[libx264 @ 0x7f95f0001800] 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=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=12 lookahead_threads=2 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 'test.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.12.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 3360x2100 [SAR 1:1 DAR 8:5], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
Metadata:
encoder : Lavc58.18.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 69 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc58.18.100 aac
frame= 1 fps=0.0 q=28.0 Lsize= 246kB time=00:00:05.38 bitrate= 374.4kbits/s speed=18.4x
video:195kB audio:49kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.736449%
[libx264 @ 0x7f95f0001800] frame I:1 Avg QP:27.64 size:199019
[libx264 @ 0x7f95f0001800] mb I I16..4: 21.9% 56.5% 21.6%
[libx264 @ 0x7f95f0001800] 8x8 transform intra:56.5%
[libx264 @ 0x7f95f0001800] coded y,uvDC,uvAC intra: 15.5% 0.6% 0.5%
[libx264 @ 0x7f95f0001800] i16 v,h,dc,p: 25% 75% 0% 0%
[libx264 @ 0x7f95f0001800] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 76% 9% 14% 0% 0% 0% 0% 0% 0%
[libx264 @ 0x7f95f0001800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 41% 27% 9% 2% 4% 4% 5% 3% 5%
[libx264 @ 0x7f95f0001800] i8c dc,h,v,p: 97% 3% 0% 0%
[libx264 @ 0x7f95f0001800] kb/s:39803.80
[aac @ 0x7f95f0003000] Qavg: 4519.618But if I remove the enable option, the shaped is overlayed for the whole duration of the video properly :
ffmpeg -i out.mp4 -i scaledSquare.png -filter_complex " [0:v][1] overlay=100:100" -y test2.mp4
ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
libavutil 56. 14.100 / 56. 14.100
libavcodec 58. 18.100 / 58. 18.100
libavformat 58. 12.100 / 58. 12.100
libavdevice 58. 3.100 / 58. 3.100
libavfilter 7. 16.100 / 7. 16.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 1.100 / 5. 1.100
libswresample 3. 1.100 / 3. 1.100
libpostproc 55. 1.100 / 55. 1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'out.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.12.100
Duration: 00:00:05.43, start: 0.000000, bitrate: 372 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 3360x2100 [SAR 1:1 DAR 8:5], 40214 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 73 kb/s (default)
Metadata:
handler_name : SoundHandler
Input #1, png_pipe, from 'scaledSquare.png':
Duration: N/A, bitrate: N/A
Stream #1:0: Video: png, rgba(pc), 900x450 [SAR 1:2 DAR 1:1], 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 (h264) -> overlay:main (graph 0)
Stream #1:0 (png) -> overlay:overlay (graph 0)
overlay (graph 0) -> Stream #0:0 (libx264)
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x7fb361801800] using SAR=1/1
[libx264 @ 0x7fb361801800] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7fb361801800] profile High, level 5.1
[libx264 @ 0x7fb361801800] 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=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=12 lookahead_threads=2 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 'test2.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.12.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 3360x2100 [SAR 1:1 DAR 8:5], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
Metadata:
encoder : Lavc58.18.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 69 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc58.18.100 aac
frame= 1 fps=0.0 q=28.0 Lsize= 244kB time=00:00:05.38 bitrate= 370.6kbits/s speed=20.8x
video:193kB audio:49kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.744060%
[libx264 @ 0x7fb361801800] frame I:1 Avg QP:27.56 size:196459
[libx264 @ 0x7fb361801800] mb I I16..4: 23.5% 55.3% 21.2%
[libx264 @ 0x7fb361801800] 8x8 transform intra:55.3%
[libx264 @ 0x7fb361801800] coded y,uvDC,uvAC intra: 15.4% 0.8% 0.6%
[libx264 @ 0x7fb361801800] i16 v,h,dc,p: 23% 76% 0% 0%
[libx264 @ 0x7fb361801800] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 79% 8% 12% 0% 0% 0% 0% 0% 1%
[libx264 @ 0x7fb361801800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 42% 27% 8% 2% 4% 4% 5% 3% 5%
[libx264 @ 0x7fb361801800] i8c dc,h,v,p: 95% 4% 1% 0%
[libx264 @ 0x7fb361801800] kb/s:39291.80
[aac @ 0x7fb361804a00] Qavg: 4519.618as additional test I did :
ffmpeg -i out.mp4 -i scaledSquare.png -filter_complex " [0:v][1] overlay=100:100:enable=’gte(t,0)’" -y test3.mp4
which supposed to add the shape from all times greater than 0, which works fine , shape is getting added for the whole duration of output.
So I am not sure why the enable option does not work when I specify something like enable=’gte(t,3)’ or enable=’between(t,1,3)’ here.
and just for additional information :
I created the original mp4 file (out.mp4) by adding an mp3 file to one png image as belowffmpeg -i images/08.png -i audio_123e4567-e89b-12d3-a456-426655440000.mp3 -pix_fmt yuv420p out.mp4
-
file input from http (url) in melt plugin
26 décembre 2017, par Anuj TBEI’m using MELT plugin for generating crossfade animation using series of images.
I found the corssfade animation script from here.
and the script is
melt -verbose \
-profile atsc_720p_25 \
001.png out=50 \
002.png out=75 -mix 25 -mixer luma \
003.png out=75 -mix 25 -mixer luma \
004.png out=75 -mix 25 -mixer luma \
005.png out=75 -mix 25 -mixer luma \
-consumer avformat:output.mp4 vcodec=libx264 an=1But instead of providing file from local path, I want to use
http
url likemelt -verbose \
-profile atsc_720p_25 \
http://example.com/image1.jpg out=50 \
http://example.com/image2.jpg out=75 -mix 25 -mixer luma \
http://example.com/image3.jpg out=75 -mix 25 -mixer luma \
http://example.com/image4.jpg out=75 -mix 25 -mixer luma \
http://example.com/image5.jpg out=75 -mix 25 -mixer luma \
-consumer avformat:output.mp4 vcodec=libx264 an=1But it gives
No LADSPA plugins were found!
Check your LADSPA_PATH environment variable.and full output is
No LADSPA plugins were found!
Check your LADSPA_PATH environment variable.
[mjpeg @ 0x168a320] Changeing bps to 8
[mjpeg @ 0x12725a0] Changeing bps to 8
[mjpeg @ 0x1691120] Changeing bps to 8
[mjpeg @ 0x1bc5ac0] Changeing bps to 8
[mjpeg @ 0x1907ae0] Changeing bps to 8
[mjpeg @ 0x1d09a20] Changeing bps to 8
[mjpeg @ 0x13a2b00] Changeing bps to 8
[mjpeg @ 0x1e4e6e0] Changeing bps to 8
[mjpeg @ 0x1d0b8c0] Changeing bps to 8
[mjpeg @ 0x1d190c0] Changeing bps to 8
+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
|1=-10| |2= -5| |3= -2| |4= -1| |5= 0| |6= 1| |7= 2| |8= 5| |9= 10|
+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
+---------------------------------------------------------------------+
| H = back 1 minute, L = forward 1 minute |
| h = previous frame, l = next frame |
| g = start of clip, j = next clip, k = previous clip |
| 0 = restart, q = quit, space = play |
+---------------------------------------------------------------------+
[libx264 @ 0x7f7f980c7aa0] using SAR=1/1
[libx264 @ 0x7f7f980c7aa0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7f7f980c7aa0] profile High, level 3.1
[libx264 @ 0x7f7f980c7aa0] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=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
[mjpeg @ 0x7f7f88433200] Changeing bps to 8
[mjpeg @ 0x7f7f88832980] Changeing bps to 8
[mjpeg @ 0x7f7f88052ac0] Changeing bps to 8
[mjpeg @ 0x7f7f88c5abe0] Changeing bps to 8
[mjpeg @ 0x7f7f88bdd560] Changeing bps to 8
[mjpeg @ 0x7f7f88beb2a0] Changeing bps to 8
[mjpeg @ 0x7f7f88c838a0] Changeing bps to 8
[mjpeg @ 0x7f7f894a1100] Changeing bps to 8
[mjpeg @ 0x7f7f88b6a3a0] Changeing bps to 8
[mjpeg @ 0x7f7f88b78840] Changeing bps to 8
[swscaler @ 0x7f7f88c5f740] YUV color matrix differs for YUV->YUV, using intermediate RGB to convert
[swscaler @ 0x7f7f88c5f740] YUV color matrix differs for YUV->YUV, using intermediate RGB to convert
[swscaler @ 0x7f7f898cc980] Warning: data is not aligned! This can lead to a speedloss
[swscaler @ 0x7f7f88c5f740] YUV color matrix differs for YUV->YUV, using intermediate RGB to convert
[swscaler @ 0x7f7f88c5f740] YUV color matrix differs for YUV->YUV, using intermediate RGB to convert
[swscaler @ 0x7f7f88c5f740] YUV color matrix differs for YUV->YUV, using intermediate RGB to convert
[mjpeg @ 0x7f7f89ff25a0] Changeing bps to 8
Segmentation fault (core dumped)Also, the generated video file is broken
How can I provide http input ?