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The pirate bay depuis la Belgique
1er avril 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Image
Autres articles (52)
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Les autorisations surchargées par les plugins
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autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
Support audio et vidéo HTML5
10 avril 2011MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)
Sur d’autres sites (8382)
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ffmpeg ignores set bitrate
13 mars 2023, par col__panicI have a folder of h264 files I am trying to convert to hevc with a lower bitrate set with -b:v flag. For context I am using python running in a Docker container. The issue is that when ffmpeg completes, the output bitrate is extremely low.


As you can see from the ffmpeg command below, I am expecting around 900k bitrate. But as the command runs, it shows around 18k bitrate.


ffmpeg -y -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -i /tmp/input.ts -an -c:v hevc_nvenc -b:v 914k -b_ref_mode 0 -tag:v hvc1 /tmp/output.mp4 
ffmpeg version N-109685-gac37b2c2b1 Copyright (c) 2000-2023 the FFmpeg developers
 built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)
 configuration: --enable-nonfree --enable-cuda-nvcc --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64
 libavutil 57. 44.100 / 57. 44.100
 libavcodec 59. 58.100 / 59. 58.100
 libavformat 59. 36.100 / 59. 36.100
 libavdevice 59. 8.101 / 59. 8.101
 libavfilter 8. 54.100 / 8. 54.100
 libswscale 6. 8.112 / 6. 8.112
 libswresample 4. 9.100 / 4. 9.100
-vsync is deprecated. Use -fps_mode
Passing a number to -vsync is deprecated, use a string argument as described in the manual.
Input #0, mpegts, from '/tmp/input.ts':
 Duration: 01:04:53.85, start: 85937.219044, bitrate: 2613 kb/s
 Program 1 
 Stream #0:0[0x101]: Video: h264 (Constrained Baseline) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720, 90k tbr, 90k tbn
 Stream #0:1[0x202]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 130 kb/s
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> hevc (hevc_nvenc))
Press [q] to stop, [?] for help
Output #0, mp4, to '/tmp/output.mp4':
 Metadata:
 encoder : Lavf59.36.100
 Stream #0:0: Video: hevc (Main) (hvc1 / 0x31637668), cuda(progressive), 1280x720, q=2-31, 914 kb/s, 90k fps, 90k tbn
 Metadata:
 encoder : Lavc59.58.100 hevc_nvenc
 Side data:
 cpb: bitrate max/min/avg: 0/0/914000 buffer size: 1828000 vbv_delay: N/A
frame=113118 fps=412 q=49.0 Lsize= 8925kB time=01:04:53.82 bitrate= 18.8kbits/s speed=14.2x 
video:8215kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 8.636624%


And then checking the output shows that it is around 18kb/s.


ffmpeg -i /tmp/output.mp4 
...
 Duration: 01:04:53.82, start: 0.000000, bitrate: 18 kb/s


For reference the input file is 2600kb/s.


ffmpeg -i /tmp/input.ts 
...
 Duration: 01:04:53.85, start: 85937.219044, bitrate: 2613 kb/s



This seems like an issue with the file itself, given that I have run the same command and had it work. Also note that even when I leave out the -b:v flag, the output is about the same.


I have tried setting -minrate:v -maxrate:v -bufsize:v and -ss 00:00:00 flags as well and they did not help.


Also there was another post that mentioned the audio track being an issue and to rule that out, I tried using -an and that didn't help either.


I saw another post that mentioned the order of the parameters being an issue but I don't think that's the issue because this same command has run successfully on other input files.


Any ideas ?


EDIT :
nvm fixed it


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concat two videos with same format
24 mars 2023, par ttbI'm trying to concat two videos that have very similar formats :


Stream #0:0[0x1](und): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(tv), 1920x1080 [SAR 1:1 DAR 16:9], 1141 kb/s, 23.98 fps, 23.98 tbr, 24k tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 224 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]


and


Stream #0:0(und): Video: hevc (hev1 / 0x31766568), yuv420p10le(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 24k tbn (default)
 Metadata:
 creation_time : 2023-03-24T21:10:17.000000Z
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 encoder : Lavc60.6.101 libx265
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
 Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 341 kb/s (default)
 Metadata:
 creation_time : 2023-03-24T21:10:17.000000Z
 handler_name : Surround
 vendor_id : [0][0][0][0]


But the video ends up freezing when played. Not sure what's wrong, I matched everything ?


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ffmpeg :how to apply animation in multiple images
2 mars 2023, par Pavan GhanateI am trying to merge number of selected images from gallery to a video template in order to make video status or short video in a android app, I am able to merge the selected images in the video using below cammand now i want to add animation


ArrayList<string> cmd2 = new ArrayList<>();
 cmd2.add("-y");
 cmd2.add("-i");
 if (video_temp_path!= null){
 cmd2.add(video_temp_path);
 }else {
 cmd2.add(Environment.getExternalStorageDirectory().getPath()
 + "/Download/happy.mp4");
 }


 for (int no = 0; no < paths.length; no++) {
 cmd2.add("-i");

 cmd2.add(paths[no]);

 }

 cmd2.add("-filter_complex");



 cmd2.add("[0][1]overlay=x=100:y=200:enable='between(t,3,8)'[v1];" +
 "[v1][2]overlay=x=100:y=200:enable='between(t,10,15)'[v2];" +
 "[v2][3]overlay=x=100:y=200:enable='gt(t,17)'[v3]");
 cmd2.add("-map");
 cmd2.add("[v3]");
 cmd2.add("-map");
 cmd2.add( "0:a");
 cmd2.add(Environment.getExternalStorageDirectory().getPath()
 + "/Download/output.mp4");
</string>

but now i want to add fade in out animation to images so I am using this cammand generated by chatgpt but its giving me error


ArrayList<string> cmd2 = new ArrayList<>();
 cmd2.add("-y");
 cmd2.add("-i");

 if (video_temp_path != null) {
 cmd2.add(video_temp_path);
 } else {
 cmd2.add(Environment.getExternalStorageDirectory().getPath() +
 "/Download/happy.mp4");
}

for (int no = 0; no < paths.length; no++) {
 cmd2.add("-loop");
 cmd2.add("1"); // loop the image

 cmd2.add("-t");
 cmd2.add("5"); // duration of the image

 cmd2.add("-i");
 cmd2.add(paths[no]);

 cmd2.add("-filter_complex");
 cmd2.add("[1:v]fade=in:st=0:d=1[tin];" +
 "[1:v]fade=out:st=4:d=1[tout];" +
 "[0:v][tin]overlay=x=100:y=200" +
 "[v1];" +
 "[v1][tout]overlay=x=100:y=200:enable='between(t,10,15)'[v2];" +
 "[v2][2:v]overlay=x=100:y=200:enable='gt(t,17)'[v3]");

 cmd2.add("-map");
 cmd2.add("[v3]");
 cmd2.add("-map");
 cmd2.add("0:a");
}

cmd2.add(Environment.getExternalStorageDirectory().getPath() +
 "/Download/output.mp4");
</string>

error is


Option map (set input stream mapping) cannot be applied to input url /storage/emulated/0/Pictures/temp/1677570327312.jpg -- you are trying to apply an input option to an output file or vice versa. Move this option before the file it belongs to.


2023-03-01 12:50:50.707 5950-6326/com.android.mergevideo E/mobile-ffmpeg : Error parsing options for input file /storage/emulated/0/Pictures/temp/1677570327312.jpg.
2023-03-01 12:50:50.707 5950-6326/com.android.mergevideo E/mobile-ffmpeg : Error opening input files :
2023-03-01 12:50:50.707 5950-6326/com.android.mergevideo E/mobile-ffmpeg : Invalid argument


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