Concat deux vidéos différentes

Question

Je veux concaténer 2 vidéos: La première est title.avi faire avec une image

ffmpeg -loop 1 -framerate 10 -i Title.JPG t5 -pix_fmt yuv420p title.avi

la deuxième video.avi provient d'une caméra

les infos de title.avi

ffmpeg -i title.avi 

    ffmpeg version 2.1.5 Copyright (c) 2000-2014 the FFmpeg developers 
     built on Jun 30 2014 00:37:24 with gcc 4.8.2 (GCC) 
     configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/man --enable-shared --disable-static --disable-debug --enable-pthreads --enable-x11grab --disable-libfaac --enable-libcaca --enable-librtmp --enable-libmp3lame --enable-libmodplug --enable-libspeex --enable-libwavpack --enable-libtheora --enable-libv4l2 --enable-libvorbis --enable-libx264 --enable-libschroedinger --enable-libass --enable-libxvid --enable-gpl --enable-postproc --enable-libopus --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvpx --enable-libcdio --enable-openal --enable-avresample --enable-version3 --disable-ssse3 --arch=i486 --cpu=i686 
     libavutil  52. 48.101/52. 48.101 
     libavcodec  55. 39.101/55. 39.101 
     libavformat 55. 19.104/55. 19.104 
     libavdevice 55. 5.100/55. 5.100 
     libavfilter  3. 90.100/3. 90.100 
     libavresample 1. 1. 0/1. 1. 0 
     libswscale  2. 5.101/2. 5.101 
     libswresample 0. 17.104/0. 17.104 
     libpostproc 52. 3.100/52. 3.100 
    Input #0, avi, from 'essai.avi': 
     Metadata: 
     encoder   : Lavf55.19.104 
     Duration: 00:00:02.00, start: 0.000000, bitrate: 233 kb/s 
     Stream #0:0: Video: h264 (High) (H264/0x34363248), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 59.94 tbn, 119.88 tbc 
    At least one output file must be specified 

Les infos de video.avi

ffmpeg -i video.avi 
ffmpeg version 2.1.5 Copyright (c) 2000-2014 the FFmpeg developers 
    built on Jun 30 2014 00:37:24 with gcc 4.8.2 (GCC) 
    configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/man --enable-shared --disable-static --disable-debug --enable-pthreads --enable-x11grab --disable-libfaac --enable-libcaca --enable-librtmp --enable-libmp3lame --enable-libmodplug --enable-libspeex --enable-libwavpack --enable-libtheora --enable-libv4l2 --enable-libvorbis --enable-libx264 --enable-libschroedinger --enable-libass --enable-libxvid --enable-gpl --enable-postproc --enable-libopus --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvpx --enable-libcdio --enable-openal --enable-avresample --enable-version3 --disable-ssse3 --arch=i486 --cpu=i686 
    libavutil  52. 48.101/52. 48.101 
    libavcodec  55. 39.101/55. 39.101 
    libavformat 55. 19.104/55. 19.104 
    libavdevice 55. 5.100/55. 5.100 
    libavfilter  3. 90.100/3. 90.100 
    libavresample 1. 1. 0/1. 1. 0 
    libswscale  2. 5.101/2. 5.101 
    libswresample 0. 17.104/0. 17.104 
    libpostproc 52. 3.100/52. 3.100 
Guessed Channel Layout for Input Stream #0.1 : stereo 
Input #0, avi, from 'partA.avi': 
    Metadata: 
    encoder   : Lavf55.19.104 
    Duration: 00:00:25.00, start: 0.000000, bitrate: 16089 kb/s 
    Stream #0:0: Video: h264 (Constrained Baseline) (avc1/0x31637661), yuvj420p(pc, smpte170m), 1280x720 [SAR 1:1 DAR 16:9], 15038 kb/s, 119.88 fps, 59.94 tbr, 119.88 tbn, 119.88 tbc 
    Stream #0:1: Audio: pcm_s16le ([1][0][0][0]/0x0001), 32000 Hz, stereo, s16, 1024 kb/s 
At least one output file must be specified 

Je veux concaténer ensemble, mais cela ne fonctionne. Mplayer arrête de lire à la fin de la première vidéo.

Le résultat de la commande

>ffmpeg -f concat -i assemble -c copy out.avi 
ffmpeg version 2.1.5 Copyright (c) 2000-2014 the FFmpeg developers 
    built on Jun 30 2014 00:37:24 with gcc 4.8.2 (GCC) 
    configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/man --enable-shared --disable-static --disable-debug --enable-pthreads --enable-x11grab --disable-libfaac --enable-libcaca --enable-librtmp --enable-libmp3lame --enable-libmodplug --enable-libspeex --enable-libwavpack --enable-libtheora --enable-libv4l2 --enable-libvorbis --enable-libx264 --enable-libschroedinger --enable-libass --enable-libxvid --enable-gpl --enable-postproc --enable-libopus --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvpx --enable-libcdio --enable-openal --enable-avresample --enable-version3 --disable-ssse3 --arch=i486 --cpu=i686 
    libavutil  52. 48.101/52. 48.101 
    libavcodec  55. 39.101/55. 39.101 
    libavformat 55. 19.104/55. 19.104 
    libavdevice 55. 5.100/55. 5.100 
    libavfilter  3. 90.100/3. 90.100 
    libavresample 1. 1. 0/1. 1. 0 
    libswscale  2. 5.101/2. 5.101 
    libswresample 0. 17.104/0. 17.104 
    libpostproc 52. 3.100/52. 3.100 
Input #0, concat, from 'assemble': 
    Duration: N/A, bitrate: N/A 
    Stream #0:0: Video: h264 (High) (H264/0x34363248), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 59.94 tbn, 119.88 tbc 
Output #0, avi, to 'anni2.avi': 
    Metadata: 
    ISFT   : Lavf55.19.104 
    Stream #0:0: Video: h264 (H264/0x34363248), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 59.94 fps, 59.94 tbn, 59.94 tbc 
Stream mapping: 
    Stream #0:0 -> #0:0 (copy) 
Press [q] to stop, [?] for help 
[concat @ 0x8cfd250] Invalid stream index 1 
    Last message repeated 319 times 
[concat @ 0x8cfd250] Invalid stream index 1time=00:00:24.04 bitrate=6321.2kbits/s  
    Last message repeated 478 times 
frame= 1619 fps=0.0 q=-1.0 Lsize= 46007kB time=00:00:54.00 bitrate=6979.0kbits/s  
video:45926kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.177626% 

Vous avez probablement faire les vidéos de la même chose, mais quoi? et comment?

Merci d'avance.

Answer 1

Essayez

ffmpeg -loop 1 -framerate 120 -i title.jpg -f lavfi -i anullsrc 
    -c:v libx264 -profile:v baseline -pix_fmt yuv420p -x264opts stitchable 
    -c:a pcm_s16le -ar 32000 -ac 2 -sample_fmt s16 -t 5 title.avi 

pour générer la première vidéo.

Answer 2

Nous pouvons le faire en codifiant les 2 vidéos comme

ffmpeg -i title.avi -c:v libx264 -preset slow -crf 15 -c:a copy title_coded.avi 
ffmpeg -i video.avi -c:v libx264 -preset slow -crf 15 -c:a copy video_coded.avi 

Mais j'aurais préféré pas reencoder video.avi de ne pas perdre la qualité, par réencodage ne title.avi avoir les mêmes caractéristiques comme video.avi