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Stereo master soundtrack
17 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Audio
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#7 Ambience
16 octobre 2011, par
Mis à jour : Juin 2015
Langue : English
Type : Audio
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#6 Teaser Music
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#5 End Title
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#3 The Safest Place
16 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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#4 Emo Creates
15 octobre 2011, par
Mis à jour : Février 2013
Langue : English
Type : Audio
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Sur d’autres sites (4709)
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WebM file not seekable in Chrome, when generated with ffmpeg
11 avril 2014, par ZoonI am having a mind-boggling problem, I just can't seem to resolve.
Providing a WebM file through PHP is nothing new in my world, and I even know how to work with HTTP 206 Partial Content. But for some reason Chrome does not like it.
A simple HTML5 video playback
<video width="640" height="360" poster="picture/preview/V00000006.jpg" controls="controls" preload="preload">
<source type="video/webm" src="/video/V00000006.webm">
</source></video>where
/video/V00000006.webm
is rewritten to a PHP-file in Apache, will playback just fine.
But in Chrome the seekbar is not effective. When clicking on the seekbar the player will freeze and no longer playback until page is refreshed. Firefox handles it just fine !If I change
/video/V00000006.webm
to be a direct link to the same video it works just fine. I even compared the network requests between the two versions (with and without PHP) and there is barely any difference in the first request, but the second is failing in the PHP-delivered video.Initial request and seek request for Apache-delivered video file :
Request URL :http://mytestserver.net/movie1152x720.webm Request Method:GET Status Code:206 Partial Content Request Headers Accept :*/* Accept-Encoding:identity ;q=1, * ;q=0 Accept-Language:da-DK,da ;q=0.8,en-US ;q=0.6,en ;q=0.4 Cache-Control:no-cache Connection:keep-alive Cookie:PHPSESSID=i562540rek172mnv3nk528acj0 ; userPassword= ; userEmail= Host:mytestserver.net Pragma:no-cache Range:bytes=0- Referer :http://mytestserver.net/video.html User-Agent:Mozilla/5.0 (X11 ; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36 Response Headers Accept-Ranges:bytes Connection:close Content-Length:4446451 Content-Range:bytes 0-4446450/4446451 Content-Type:video/webm Date:Fri, 11 Apr 2014 13:07:30 GMT ETag :"d2d0027-43d8f3-b91417c0" Last-Modified:Fri, 11 Apr 2014 12:46:31 GMT Server:Apache/2.2.3 (CentOS)
—
Request URL :http://mytestserver.net/movie1152x720.webm
Request Method:GET
Status Code:206 Partial Content
Request Headers
Accept :*/*
Accept-Encoding:identity ;q=1, * ;q=0
Accept-Language:da-DK,da ;q=0.8,en-US ;q=0.6,en ;q=0.4
Cache-Control:no-cache
Connection:keep-alive
Cookie:PHPSESSID=i562540rek172mnv3nk528acj0 ; userPassword= ; userEmail=
Host:mytestserver.net
Pragma:no-cache
Range:bytes=4445881-
Referer :http://mytestserver.net/video.html
User-Agent:Mozilla/5.0 (X11 ; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36
Response Headers
Accept-Ranges:bytes
Connection:close
Content-Length:570
Content-Range:bytes 4445881-4446450/4446451
Content-Type:video/webm
Date:Fri, 11 Apr 2014 13:09:02 GMT
ETag :"d2d0027-43d8f3-b91417c0"
Last-Modified:Fri, 11 Apr 2014 12:46:31 GMT
Server:Apache/2.2.3 (CentOS)Initial request and seek request for PHP-streamed video :
Request URL :http://mytestserver.net/video/V00000006.webm Request Method:GET Status Code:206 Partial Content Request Headers Accept :*/* Accept-Encoding:identity ;q=1, * ;q=0 Accept-Language:da-DK,da ;q=0.8,en-US ;q=0.6,en ;q=0.4 Cache-Control:no-cache Connection:keep-alive Cookie:PHPSESSID=i562540rek172mnv3nk528acj0 ; userPassword= ; userEmail= Host:mytestserver.net Pragma:no-cache Range:bytes=0- Referer :http://mytestserver.net/video.html User-Agent:Mozilla/5.0 (X11 ; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36 Response Headers Accept-Ranges:bytes Cache-Control:no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Connection:close Content-Length:8566268 Content-Range:bytes 0-8566267/8566268 Content-Type:video/webm Date:Fri, 11 Apr 2014 13:31:27 GMT Expires:Thu, 19 Nov 1981 08:52:00 GMT Pragma:no-cache Server:Apache/2.2.3 (CentOS) X-Powered-By:PHP/5.3.27
—
Request URL :http://mytestserver.net/video/V00000006.webm
Request Headers CAUTION : Provisional headers are shown.
Accept-Encoding:identity ;q=1, * ;q=0
Cache-Control:no-cache
Pragma:no-cache
Range:bytes=4338314-
Referer :http://mytestserver.net/video.html
User-Agent:Mozilla/5.0 (X11 ; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36Notice how the second request does not complete, Provisional headers are shown.
I have tried altering the cache headers, setting it to the future, setting them blank and using file attachment headers.
I tried fiddling around a lot with the serving code, but lately I have ended up with a simple example.
<?php
$path = 'test.webm';
$size=filesize($path);
$fm=@fopen($path,'rb');
if(!$fm) {
header ("HTTP/1.0 404 Not Found");
die();
}
$begin=0;
$end = $size-1;
if(isset($_SERVER['HTTP_RANGE'])) {
if(preg_match('/bytes=\h*(\d+)-(\d*)[\D.*]?/i', $_SERVER['HTTP_RANGE'], $matches)) {
$begin=intval($matches[0]);
if(!empty($matches[1])) {
$end=intval($matches[1]);
}
}
}
if($begin>0||$end<$size)
header('HTTP/1.0 206 Partial Content');
else
header('HTTP/1.0 200 OK');
header("Content-Type: video/webm");
header('Accept-Ranges: bytes');
header('Content-Length:'.($end-$begin+1));
header("Content-Disposition: inline;");
header("Content-Range: bytes $begin-$end/$size");
header("Content-Transfer-Encoding: binary\n");
header('Connection: close');
ob_get_clean();
flush();
$f = fopen($path, 'r');
fseek($f, $offset);
$pos = 0;
$length = $end-$begin;
while($pos < $length)
{
$chunk = min($length-$pos, 1024);
echo fread($f, $chunk);
flush();
$pos += $chunk;
}
?>Please note, entering the PHP-delivered video URL directly into the browser does not make a difference from showing it in a HTML page.
I hope someone has an answer to why seeking might not work. Let me know if you have any suggestions.
Thanks !
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How can I convert a video raw frame to image using ffmpeg [closed]
8 mai 2024, par SeanI have a video stream (from a DJI Drone) coming to a websocket server.The websocket server saves the data using the technique described in this answer.


Technical Details



The frame is :


- 

- From a H265 video generated by the drone
- has size : height 1080 , width 1440
- FPS : 30
- Size : 45235










This is the raw video data as we receive from the getData() function of the video frame returned by the addStreamDataListener method


Goal



I want that the saved frame (I have noted the peculiar size) to be converted to ffpmeg.


Attempt(s) to solve



I have tried :


ffmpeg -f rawvideo -s 720x480 -i images/fileName1715180324575.dat output.jpg



as well as


ffmpeg -f rawvideo -pix_fmt rgb24 -s 1080x1440 -i images/fileName1715180324575.dat output.jpg



and various other combinations


Error



I get :


ffmpeg version n6.1.1 Copyright (c) 2000-2023 the FFmpeg developers


built with gcc 13.2.1 (GCC) 20230801
 configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libharfbuzz --enable-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-vapoursynth --enable-version3 --enable-vulkan
 libavutil 58. 29.100 / 58. 29.100
 libavcodec 60. 31.102 / 60. 31.102
 libavformat 60. 16.100 / 60. 16.100
 libavdevice 60. 3.100 / 60. 3.100
 libavfilter 9. 12.100 / 9. 12.100
 libswscale 7. 5.100 / 7. 5.100
 libswresample 4. 12.100 / 4. 12.100
 libpostproc 57. 3.100 / 57. 3.100
[rawvideo @ 0x5d0fc4e5f600] Packet corrupt (stream = 0, dts = 0).
[rawvideo @ 0x5d0fc4e5f600] Estimating duration from bitrate, this may be inaccurate
Input #0, rawvideo, from 'images/fileName1715180324575.dat':
 Duration: N/A, start: 0.000000, bitrate: 933120 kb/s
 Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 1080x1440, 933120 kb/s, 25 tbr, 25 tbn
Stream mapping:
 Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[in#0/rawvideo @ 0x5d0fc4e5f500] corrupt input packet in stream 0
[rawvideo @ 0x5d0fc4e697c0] Invalid buffer size, packet size 45235 < expected frame_size 4665600
[vist#0:0/rawvideo @ 0x5d0fc4e69640] Error submitting packet to decoder: Invalid argument
[swscaler @ 0x5d0fc4e86580] deprecated pixel format used, make sure you did set range correctly
[vost#0:0/mjpeg @ 0x5d0fc4e6c6c0] No filtered frames for output stream, trying to initialize anyway.
Output #0, image2, to 'output.jpg':
 Metadata:
 encoder : Lavf60.16.100
 Stream #0:0: Video: mjpeg, yuvj444p(pc, progressive), 1080x1440, q=2-31, 200 kb/s, 25 fps, 25 tbn
 Metadata:
 encoder : Lavc60.31.102 mjpeg
 Side data:
 cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
[vist#0:0/rawvideo @ 0x5d0fc4e69640] Decode error rate 1 exceeds maximum 0.666667
[out#0/image2 @ 0x5d0fc4e69380] video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#0/image2 @ 0x5d0fc4e69380] Output file is empty, nothing was encoded(check -ss / -t / -frames parameters if used)
frame= 0 fps=0.0 q=0.0 Lsize=N/A time=N/A bitrate=N/A speed=N/A 
Conversion failed!



or


ffmpeg version n6.1.1 Copyright (c) 2000-2023 the FFmpeg developers
 built with gcc 13.2.1 (GCC) 20230801
 configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libharfbuzz --enable-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-vapoursynth --enable-version3 --enable-vulkan
 libavutil 58. 29.100 / 58. 29.100
 libavcodec 60. 31.102 / 60. 31.102
 libavformat 60. 16.100 / 60. 16.100
 libavdevice 60. 3.100 / 60. 3.100
 libavfilter 9. 12.100 / 9. 12.100
 libswscale 7. 5.100 / 7. 5.100
 libswresample 4. 12.100 / 4. 12.100
 libpostproc 57. 3.100 / 57. 3.100
[rawvideo @ 0x5a4c0b8685c0] Packet corrupt (stream = 0, dts = 0).
[rawvideo @ 0x5a4c0b8685c0] Estimating duration from bitrate, this may be inaccurate
Input #0, rawvideo, from 'images/fileName1715180324575.dat':
 Duration: N/A, start: 0.000000, bitrate: 103680 kb/s
 Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480, 103680 kb/s, 25 tbr, 25 tbn
Stream mapping:
 Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[in#0/rawvideo @ 0x5a4c0b8684c0] corrupt input packet in stream 0
[rawvideo @ 0x5a4c0b872700] Invalid buffer size, packet size 45235 < expected frame_size 518400
[vist#0:0/rawvideo @ 0x5a4c0b872580] Error submitting packet to decoder: Invalid argument
[swscaler @ 0x5a4c0b88f480] deprecated pixel format used, make sure you did set range correctly
[vost#0:0/mjpeg @ 0x5a4c0b875600] No filtered frames for output stream, trying to initialize anyway.
Output #0, image2, to 'output.jpg':
 Metadata:
 encoder : Lavf60.16.100
 Stream #0:0: Video: mjpeg, yuvj420p(pc, progressive), 720x480, q=2-31, 200 kb/s, 25 fps, 25 tbn
 Metadata:
 encoder : Lavc60.31.102 mjpeg
 Side data:
 cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
[vist#0:0/rawvideo @ 0x5a4c0b872580] Decode error rate 1 exceeds maximum 0.666667
[out#0/image2 @ 0x5a4c0b8722c0] video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#0/image2 @ 0x5a4c0b8722c0] Output file is empty, nothing was encoded(check -ss / -t / -frames parameters if used)
frame= 0 fps=0.0 q=0.0 Lsize=N/A time=N/A bitrate=N/A speed=N/A 
Conversion failed!



or similar errors.


Question



How can I extract the image from a video frame using ffmpeg ? Thank you


A sample of the image file may be found here : github


-
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