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SPIP - plugins - embed code - Exemple
2 septembre 2013, par
Mis à jour : Septembre 2013
Langue : français
Type : Image
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Publier une image simplement
13 avril 2011, par ,
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (41)
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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 -
MediaSPIP Player : problèmes potentiels
22 février 2011, parLe lecteur ne fonctionne pas sur Internet Explorer
Sur Internet Explorer (8 et 7 au moins), le plugin utilise le lecteur Flash flowplayer pour lire vidéos et son. Si le lecteur ne semble pas fonctionner, cela peut venir de la configuration du mod_deflate d’Apache.
Si dans la configuration de ce module Apache vous avez une ligne qui ressemble à la suivante, essayez de la supprimer ou de la commenter pour voir si le lecteur fonctionne correctement : /** * GeSHi (C) 2004 - 2007 Nigel McNie, (...) -
List of compatible distributions
26 avril 2011, parThe table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)
Sur d’autres sites (2748)
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FFMPEG = I tried resizing a video, but got different resolution than I wanted [closed]
10 janvier 2024, par wakanasakaiI downloaded a video that had some black bars (left & right), so I used the following command in FFmpeg to make various changes to it. I tested it on a 10 second clip to see what the result would look like.


-ss 00:04:44 -to 00:04:54 -vf "crop=1870:20:20:0","scale=640x480:flags=lanczos","eq=gamma=1.5:saturation=1.3:contrast=1.2"

The original video is an mp4, with a resolution of 1920 x 1080. Besides trying to crop it & adjust the gamma, saturation, & contrast, I also tried to resize it to 640 x 480. Instead, it's resulting resolution is 44880 x 480 ! I have a link to it for anybody who wants to examine it directly. (It's only 487 kb.)
text


I've tried using FFmpeg before, & it never did anything so insane. (It cropped it, & adjusted the gamma a saturation (I didn't test the contrast until THIS time), but it did not resize it at all.)


Here is FFmpeg's log file for it. Guesses as to the cause of the insane result, & advice on how to achieve the DESIRED result (in 1 pass, if possible) are requested.


ffmpeg -hwaccel auto -y -i "/storage/emulated/0/bluetooth/Barbie & the Rockers=1080-Out of this world (1987).mp4" -ss 00:04:44 -to 00:04:54 -vf "crop=1870:20:20:0","scale=640x480:flags=lanczos","eq=gamma=1.5:saturation=1.3:contrast=1.2" "/storage/emulated/0/Movies/Barbie.mp4"

ffmpeg version 6.0 Copyright (c) 2000-2023 the FFmpeg developers
 built with gcc 4.9.x (GCC) 20150123 (prerelease)
 configuration: --enable-version3 --enable-gpl --enable-nonfree --disable-indev=v4l2 --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libvpx --enable-libvorbis --enable-libtheora --enable-libopus --enable-libfdk-aac --enable-libfreetype --enable-libass --enable-libfribidi --enable-fontconfig --enable-pthreads --enable-libxvid --enable-filters --enable-openssl --enable-librtmp --disable-protocol='udp,udplite' --enable-libopencore-amrwb --enable-libopencore-amrnb --enable-libvo-amrwbenc --enable-libspeex --enable-libsoxr --enable-libwebp --enable-libxml2 --enable-libopenh264 --enable-jni --prefix=/home/silentlexx/AndroidstudioProjects/ffmpeg/ffmpeg/build/arm-api18-r13b --sysroot=/home/silentlexx/Android/android-ndk-r13b/platforms/android-18/arch-arm --arch=arm --disable-shared --enable-static --enable-pic --enable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffnvcodec --disable-avdevice --disable-debug --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-symver --cross-prefix=/home/silentlexx/Android/android-ndk-r13b/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi- --target-os=android --enable-cross-compile --pkg-config-flags=--static --extra-libs='-lgnustl_static -lm -lpng -l:libz.so -lpthread' --enable-asm --enable-neon --enable-small
 libavutil 58. 2.100 / 58. 2.100
 libavcodec 60. 3.100 / 60. 3.100
 libavformat 60. 3.100 / 60. 3.100
 libavfilter 9. 3.100 / 9. 3.100
 libswscale 7. 1.100 / 7. 1.100
 libswresample 4. 10.100 / 4. 10.100
 libpostproc 57. 1.100 / 57. 1.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/bluetooth/Barbie & the Rockers=1080-Out of this world (1987).mp4':
 Metadata:
 major_brand : mp42
 minor_version : 512
 compatible_brands: mp41isomiso2
 creation_time : 2024-01-04T01:46:07.000000Z
 Duration: 00:45:33.10, start: 0.000000, bitrate: 3404 kb/s
 Stream #0:0[0x1](und): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 3272 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
 Metadata:
 creation_time : 2023-06-25T13:25:03.000000Z
 vendor_id : [0][0][0][0]
 Stream #0:1[0x2](eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 creation_time : 2023-06-25T13:25:03.000000Z
 vendor_id : [0][0][0][0]
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
 Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0xf38cd180] using SAR=561/8
[libx264 @ 0xf38cd180] using cpu capabilities: ARMv6 NEON
[libx264 @ 0xf38cd180] profile High, level 3.0, 4:2:0, 8-bit
[libx264 @ 0xf38cd180] 264 - core 158 r2984 3759fcb - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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 '/storage/emulated/0/Movies/Barbie.mp4':
 Metadata:
 major_brand : mp42
 minor_version : 512
 compatible_brands: mp41isomiso2
 encoder : Lavf60.3.100
 Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 640x480 [SAR 561:8 DAR 187:2], q=2-31, 30 fps, 15360 tbn (default)
 Metadata:
 creation_time : 2023-06-25T13:25:03.000000Z
 vendor_id : [0][0][0][0]
 encoder : Lavc60.3.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
 Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 creation_time : 2023-06-25T13:25:03.000000Z
 vendor_id : [0][0][0][0]
 encoder : Lavc60.3.100 aac
frame= 0 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A 
frame= 0 fps=0.0 q=0.0 size= 0kB time=00:00:00.16 bitrate= 2.4kbits/s speed=0.00197x 
frame= 0 fps=0.0 q=0.0 size= 0kB time=00:00:00.71 bitrate= 0.5kbits/s speed=0.00867x 
frame= 13 fps=0.2 q=29.0 size= 0kB time=00:00:01.48 bitrate= 0.3kbits/s speed=0.0178x 
frame= 45 fps=0.5 q=29.0 size= 0kB time=00:00:02.55 bitrate= 0.2kbits/s speed=0.0304x 
frame= 78 fps=0.9 q=29.0 size= 0kB time=00:00:03.66 bitrate= 0.1kbits/s speed=0.0434x 
frame= 114 fps=1.3 q=29.0 size= 0kB time=00:00:04.85 bitrate= 0.1kbits/s speed=0.057x 
frame= 146 fps=1.7 q=29.0 size= 0kB time=00:00:05.92 bitrate= 0.1kbits/s speed=0.0692x 
frame= 178 fps=2.1 q=29.0 size= 0kB time=00:00:07.03 bitrate= 0.1kbits/s speed=0.0817x 
frame= 209 fps=2.4 q=29.0 size= 256kB time=00:00:08.03 bitrate= 261.1kbits/s speed=0.0928x 
frame= 240 fps=2.8 q=29.0 size= 256kB time=00:00:09.07 bitrate= 231.0kbits/s speed=0.104x 
frame= 300 fps=3.4 q=-1.0 Lsize= 445kB time=00:00:09.98 bitrate= 365.2kbits/s speed=0.114x 
video:275kB audio:159kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.692692%
[libx264 @ 0xf38cd180] frame I:10 Avg QP:20.34 size: 2434
[libx264 @ 0xf38cd180] frame P:129 Avg QP:21.89 size: 1292
[libx264 @ 0xf38cd180] frame B:161 Avg QP:21.69 size: 555
[libx264 @ 0xf38cd180] consecutive B-frames: 20.0% 18.7% 20.0% 41.3%
[libx264 @ 0xf38cd180] mb I I16..4: 30.2% 66.5% 3.2%
[libx264 @ 0xf38cd180] mb P I16..4: 14.3% 17.7% 0.2% P16..4: 12.7% 2.7% 0.4% 0.0% 0.0% skip:52.1%
[libx264 @ 0xf38cd180] mb B I16..4: 2.1% 1.1% 0.0% B16..8: 21.9% 1.7% 0.0% direct: 1.5% skip:71.6% L0:46.0% L1:53.0% BI: 1.0%
[libx264 @ 0xf38cd180] 8x8 transform intra:54.9% inter:98.2%
[libx264 @ 0xf38cd180] coded y,uvDC,uvAC intra: 10.3% 14.9% 1.5% inter: 2.2% 5.4% 0.0%
[libx264 @ 0xf38cd180] i16 v,h,dc,p: 93% 2% 2% 4%
[libx264 @ 0xf38cd180] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 69% 1% 28% 0% 0% 1% 0% 0% 0%
[libx264 @ 0xf38cd180] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 76% 3% 17% 1% 1% 2% 0% 1% 0%
[libx264 @ 0xf38cd180] i8c dc,h,v,p: 45% 2% 53% 1%
[libx264 @ 0xf38cd180] Weighted P-Frames: Y:0.8% UV:0.8%
[libx264 @ 0xf38cd180] ref P L0: 57.0% 8.7% 24.0% 10.4%
[libx264 @ 0xf38cd180] ref B L0: 79.7% 17.3% 3.0%
[libx264 @ 0xf38cd180] ref B L1: 95.6% 4.4%
[libx264 @ 0xf38cd180] kb/s:224.32
[aac @ 0xf38cd880] Qavg: 457.489


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How to convert multiple jpg images to MP4 format using FFmpeg ?
30 janvier 2024, par PDLAOZEI- 

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I first used the FFmpeg command line to implement this function.

ffmpeg -framerate 1 -pattern_type glob -i "./image/*.jpg" -c:v libx264 -crf 25 -vf format=yuv420p -movflags +faststart test.mp4

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Then I use FFmpeg's api to convert multiple jpg into MP4 format, the process is probably.








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- Find the AV_CODEC_ID_MPEG4 encoder.
- Turn on the encoder.
- Set video stream parameters.
- Open the output file.
- Write file header.
- Allocate image frame rate and buffer.
- Write each jpg image to the video (write in a loop).
7-1. read jpg image.
7-2. Find video stream information.
7-3. Decoded image frame.
7-4. Transcode to yuv420p.
7-5. Encode and write video frames.
- Finally, free memory.


















update the reproducible example


#include <iostream>
#include <vector>
#include <string>
#include <chrono>
#include <thread>

#include <filesystem>
#include <algorithm>
#include <iomanip>
#include <sys></sys>stat.h>

extern "C"
{
#include <libavcodec></libavcodec>avcodec.h>
#include <libavformat></libavformat>avformat.h>
#include <libswscale></libswscale>swscale.h>
#include <libavutil></libavutil>imgutils.h>
}

namespace fs = std::filesystem;

bool compareFilenames(const std::string &str1, const std::string &str2)
{
 //ToDo Sort
}

int main()
{
 
 fs::path folderPath = "" //replace your image foldePath

 std::vector imageFiles;
 for (const auto &entry : fs::directory_iterator(folderPath))
 {
 if (entry.is_regular_file() && entry.path().extension() == ".jpg")
 {
 imageFiles.push_back(entry.path());
 }
 }

 std::sort(imageFiles.begin(), imageFiles.end(), compareFilenames);

 std::string outputVideoFile = "output.mp4";

 AVFormatContext *formatContext = nullptr;
 AVCodecContext *codecContext = nullptr;
 AVStream *videoStream = nullptr;

 av_register_all();
 avformat_alloc_output_context2(&formatContext, nullptr, nullptr, outputVideoFile.c_str());


 AVCodec *codec = avcodec_find_encoder(AV_CODEC_ID_MPEG4);//AV_CODEC_ID_H264
 videoStream = avformat_new_stream(formatContext, codec);
 codecContext = avcodec_alloc_context3(codec);

 codecContext->codec_id = codec->id;
 codecContext->codec_type = AVMEDIA_TYPE_VIDEO;
 codecContext->pix_fmt = AV_PIX_FMT_YUV420P;
 codecContext->width = 1920;
 codecContext->height = 1080;
 codecContext->time_base = {1, 2}; 
 codecContext->bit_rate = 100000000;
 codecContext->gop_size = 1;

 avcodec_open2(codecContext, codec, nullptr);
 avcodec_parameters_from_context(videoStream->codecpar, codecContext);

 avio_open(&formatContext->pb, outputVideoFile.c_str(), AVIO_FLAG_WRITE);
 avformat_write_header(formatContext, NULL);

 AVFrame *frame = av_frame_alloc();

 std::vector imageBuffer(codecContext->width * codecContext->height * 3);
 AVPacket packet;

 for (const std::string &imageFile : imageFiles)
 {

 AVFormatContext *inputFormatContext = avformat_alloc_context();
 avformat_open_input(&inputFormatContext, imageFile.c_str(), nullptr, nullptr);

 avformat_find_stream_info(inputFormatContext, nullptr);

 AVCodec *inputCodec = nullptr;
 AVCodecContext *inputCodecContext = nullptr;
 int videoStreamIndex = -1;

 for (unsigned int i = 0; i < inputFormatContext->nb_streams; i++)
 {
 if (inputFormatContext->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
 {
 videoStreamIndex = i;
 inputCodec = avcodec_find_decoder(inputFormatContext->streams[i]->codecpar->codec_id);
 inputCodecContext = avcodec_alloc_context3(inputCodec);
 avcodec_parameters_to_context(inputCodecContext, inputFormatContext->streams[i]->codecpar);
 avcodec_open2(inputCodecContext, inputCodec, NULL);
 break;
 }
 }

 AVFrame *inputFrame = av_frame_alloc();
 while (av_read_frame(inputFormatContext, &packet) >= 0)
 {
 if (packet.stream_index == videoStreamIndex)
 {
 int response = avcodec_send_packet(inputCodecContext, &packet);

 while (response >= 0)
 {
 response = avcodec_receive_frame(inputCodecContext, inputFrame);
 if (response == AVERROR(EAGAIN) || response == AVERROR_EOF)
 {
 break;
 }
 else if (response < 0)
 {
 std::cerr << "Failed to receive frame from input decoder" << std::endl;
 break;
 }

 AVFrame *yuvFrame = av_frame_alloc();
 av_image_alloc(yuvFrame->data, yuvFrame->linesize, codecContext->width, codecContext->height, codecContext->pix_fmt, 1);

 SwsContext *yuvSwsContext = sws_getContext(inputFrame->width, inputFrame->height, AV_PIX_FMT_RGB24,
 codecContext->width, codecContext->height, codecContext->pix_fmt,
 0, nullptr, nullptr, nullptr);

 sws_scale(yuvSwsContext, inputFrame->data, inputFrame->linesize, 0, inputFrame->height,
 yuvFrame->data, yuvFrame->linesize);


 memcpy(imageBuffer.data(), yuvFrame->data[0], codecContext->width * codecContext->height);
 memcpy(imageBuffer.data() + codecContext->width * codecContext->height, yuvFrame->data[1], codecContext->width * codecContext->height / 4);
 memcpy(imageBuffer.data() + codecContext->width * codecContext->height * 5 / 4, yuvFrame->data[2], codecContext->width * codecContext->height / 4);

 frame->data[0] = imageBuffer.data();
 frame->data[1] = frame->data[0] + codecContext->width * codecContext->height;
 frame->data[2] = frame->data[1] + codecContext->width * codecContext->height / 4;
 frame->linesize[0] = codecContext->width;
 frame->linesize[1] = codecContext->width / 2;
 frame->linesize[2] = codecContext->width / 2;
 frame->width = codecContext->width;
 frame->height = codecContext->height;
 frame->format = codecContext->pix_fmt;
 frame->pts = av_rescale_q(videoStream->nb_frames, videoStream->time_base, videoStream->codec->time_base);

 av_init_packet(&packet);
 packet.data = nullptr;
 packet.size = 0;

 avcodec_send_frame(codecContext, frame);

 while (avcodec_receive_packet(codecContext, &packet) >= 0)
 {
 av_packet_rescale_ts(&packet, codecContext->time_base, videoStream->time_base);
 packet.stream_index = videoStream->index;

 av_write_frame(formatContext, &packet);
 av_packet_unref(&packet);
 }

 av_freep(&yuvFrame->data[0]);
 av_freep(&yuvFrame);
 sws_freeContext(yuvSwsContext);
 }
 }

 av_packet_unref(&packet);
 }

 av_frame_free(&inputFrame);
 avcodec_close(inputCodecContext);
 avformat_close_input(&inputFormatContext);
 }

 av_write_trailer(formatContext);

 av_frame_free(&frame);
 avcodec_close(codecContext);
 av_free(codecContext);
 avio_close(formatContext->pb);
 avformat_free_context(formatContext);

 return 0;
}


</iomanip></algorithm></filesystem></thread></chrono></string></vector></iostream>

But the encoding format is mpeg, which cannot be opened in the player included with windows, and the prompt is an unsupported format.


Although the vlc player can be opened and played normally, I need to play it normally on the player that comes with windows, because the output video will be played on the browser.


So I changed AV_CODEC_ID_MPEG4 to AV_CODEC_ID_H264, and the result is that although the file size of the output image is very large, only one picture is displayed during playback. I don't know what the problem is.


I was thinking about writing a new one, but I had no idea how to write a new one.
I would appreciate it if someone could write me an example.


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Use ffmpeg to pan right over an image and then pan left to the original location
4 février 2024, par user1517922I'm using this command to pan to the right for 5 seconds on an image (like a 1080x1080 window moving across a larger image, 500px from the top) :


ffmpeg -loop 1 -r 30 -i image.jpg -vf crop=w=1080:h=1080:x=n:y=500 -frames:v 150 -pix_fmt yuv420p -preset fast -crf 30 video.mp4

I'd like to pan back to the left for 5 seconds to end up at the same spot.


The desired affect is when the video is on loop the square window pans right for 5 seconds then back left for 5 seconds then repeats, smooth and without flicker.


I suspect I need to use zoompan, but I haven't had success trying that.


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