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Sintel MP4 Surround 5.1 Full
13 mai 2011, par
Mis à jour : Février 2012
Langue : English
Type : Video
Autres articles (53)
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Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users. -
L’espace de configuration de MediaSPIP
29 novembre 2010, parL’espace de configuration de MediaSPIP est réservé aux administrateurs. Un lien de menu "administrer" est généralement affiché en haut de la page [1].
Il permet de configurer finement votre site.
La navigation de cet espace de configuration est divisé en trois parties : la configuration générale du site qui permet notamment de modifier : les informations principales concernant le site (...) -
Contribute to a better visual interface
13 avril 2011MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.
Sur d’autres sites (9374)
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I created a Python code to capture live video using FFmpeg, but the output screen only shows noise
16 octobre 2024, par chun3 hyunThe code below is Python code that made my computer screen video capture in real time via ffmpeg.


When I run the code below, it goes well until a new window named 'Captured Frame' is created. But this 'Captured Frame' window doesn't show the full screen of my computer, and the gray screen is generating a lot of noise.


import cv2
import numpy as np
import subprocess

def frame_capture():
 # Set FFmpeg command (capture desired window or area)
 ffmpeg_command = [
 'ffmpeg',
 '-f', 'gdigrab', # Windows screen capture (using gdigrab)
 '-framerate', '30', # Setting the Frame Speed
 '-i', 'desktop', # What to capture (for example, full screen)
 '-pix_fmt', 'bgr0',
 '-vcodec', 'rawvideo', # Video codec settings
 '-tune', 'zerolatency',
 '-an', # Disable audio
 '-sn', # Disable Caption
 '-f', 'rawvideo', '-'
 ]

 # Running the FFmpeg process
 process = subprocess.Popen(ffmpeg_command, stdout=subprocess.PIPE, bufsize=10**8)

 while True:
 # Read Frame from FFmpeg (Resolution Example: 1920x1080)
 raw_frame = process.stdout.read(1920 * 1080 * 3) # 1920x1080 resolution, BGR format
 if not raw_frame:
 break # Shut down the loop when you can no longer receive frames

 # Converting frame data to a numpy array
 frame = np.frombuffer(raw_frame, np.uint8).reshape((1080, 1920, 3))

 # Add frame processing code here
 # Example: Showing a frame on the screen
 cv2.imshow('Captured Frame', frame)

 # Press the 'q' key to end
 if cv2.waitKey(1) & 0xFF == ord('q'):
 break

 # End of process and release of resources
 process.stdout.close()
 process.wait()
 cv2.destroyAllWindows()
frame_capture()



What could I have done wrong ? When I directly input the FFmpeg command in the Windows command prompt(knows as 'cmd') as shown below to save the video (in .mp4 format), I can see that the screen is output normally in the saved file. It seems that FFmpeg itself is installed correctly, but I don't know what the cause is.


hwnd=132554 -pix_fmt yuv420p -vf "scale=iw-mod(iw\,2):ih-mod(ih\,2)" -draw_mouse 1 -t 10 output.mp4



The handle number written above was the handle of the active Chrome window on my computer.


My ffmpeg version is 2024-10-10-git-0f5592cfc7-full_build-www.gyan.dev My Python version is 3.12.4
My Windows version and build are as specified below.
:Windows 11 Home, 10.0.22631


Capturing the computer screen with FFmpeg. I tried it, but the output screen shows only noise.


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swscale/x86/input.asm : add x86-optimized planer rgb2yuv functions
24 novembre 2021, par Mark Reidswscale/x86/input.asm : add x86-optimized planer rgb2yuv functions
sse2 only operates on 2 lanes per loop for to_y and to_uv functions, due
to the lack of pmulld instruction. Emulating pmulld with 2 pmuludq and shuffles
proved too costly and made to_uv functions slower then the c implementation.For to_y on sse2 only float functions are generated,
I was are not able outperform the c implementation on the integer pixel formats.For to_a on see4 only the float functions are generated.
sse2 and sse4 generated nearly identical performing code on integer pixel formats,
so only sse2/avx2 versions are generated.planar_gbrp_to_y_512_c : 1197.5
planar_gbrp_to_y_512_sse4 : 444.5
planar_gbrp_to_y_512_avx2 : 287.5
planar_gbrap_to_y_512_c : 1204.5
planar_gbrap_to_y_512_sse4 : 447.5
planar_gbrap_to_y_512_avx2 : 289.5
planar_gbrp9be_to_y_512_c : 1380.0
planar_gbrp9be_to_y_512_sse4 : 543.5
planar_gbrp9be_to_y_512_avx2 : 340.0
planar_gbrp9le_to_y_512_c : 1200.5
planar_gbrp9le_to_y_512_sse4 : 442.0
planar_gbrp9le_to_y_512_avx2 : 282.0
planar_gbrp10be_to_y_512_c : 1378.5
planar_gbrp10be_to_y_512_sse4 : 544.0
planar_gbrp10be_to_y_512_avx2 : 337.5
planar_gbrp10le_to_y_512_c : 1200.0
planar_gbrp10le_to_y_512_sse4 : 448.0
planar_gbrp10le_to_y_512_avx2 : 285.5
planar_gbrap10be_to_y_512_c : 1380.0
planar_gbrap10be_to_y_512_sse4 : 542.0
planar_gbrap10be_to_y_512_avx2 : 340.5
planar_gbrap10le_to_y_512_c : 1199.0
planar_gbrap10le_to_y_512_sse4 : 446.0
planar_gbrap10le_to_y_512_avx2 : 289.5
planar_gbrp12be_to_y_512_c : 10563.0
planar_gbrp12be_to_y_512_sse4 : 542.5
planar_gbrp12be_to_y_512_avx2 : 339.0
planar_gbrp12le_to_y_512_c : 1201.0
planar_gbrp12le_to_y_512_sse4 : 440.5
planar_gbrp12le_to_y_512_avx2 : 286.0
planar_gbrap12be_to_y_512_c : 1701.5
planar_gbrap12be_to_y_512_sse4 : 917.0
planar_gbrap12be_to_y_512_avx2 : 338.5
planar_gbrap12le_to_y_512_c : 1201.0
planar_gbrap12le_to_y_512_sse4 : 444.5
planar_gbrap12le_to_y_512_avx2 : 288.0
planar_gbrp14be_to_y_512_c : 1370.5
planar_gbrp14be_to_y_512_sse4 : 545.0
planar_gbrp14be_to_y_512_avx2 : 338.5
planar_gbrp14le_to_y_512_c : 1199.0
planar_gbrp14le_to_y_512_sse4 : 444.0
planar_gbrp14le_to_y_512_avx2 : 279.5
planar_gbrp16be_to_y_512_c : 1364.0
planar_gbrp16be_to_y_512_sse4 : 544.5
planar_gbrp16be_to_y_512_avx2 : 339.5
planar_gbrp16le_to_y_512_c : 1201.0
planar_gbrp16le_to_y_512_sse4 : 445.5
planar_gbrp16le_to_y_512_avx2 : 280.5
planar_gbrap16be_to_y_512_c : 1377.0
planar_gbrap16be_to_y_512_sse4 : 545.0
planar_gbrap16be_to_y_512_avx2 : 338.5
planar_gbrap16le_to_y_512_c : 1201.0
planar_gbrap16le_to_y_512_sse4 : 442.0
planar_gbrap16le_to_y_512_avx2 : 279.0
planar_gbrpf32be_to_y_512_c : 4113.0
planar_gbrpf32be_to_y_512_sse2 : 2438.0
planar_gbrpf32be_to_y_512_sse4 : 1068.0
planar_gbrpf32be_to_y_512_avx2 : 904.5
planar_gbrpf32le_to_y_512_c : 3818.5
planar_gbrpf32le_to_y_512_sse2 : 2024.5
planar_gbrpf32le_to_y_512_sse4 : 1241.5
planar_gbrpf32le_to_y_512_avx2 : 657.0
planar_gbrapf32be_to_y_512_c : 3707.0
planar_gbrapf32be_to_y_512_sse2 : 2444.0
planar_gbrapf32be_to_y_512_sse4 : 1077.0
planar_gbrapf32be_to_y_512_avx2 : 909.0
planar_gbrapf32le_to_y_512_c : 3822.0
planar_gbrapf32le_to_y_512_sse2 : 2024.5
planar_gbrapf32le_to_y_512_sse4 : 1176.0
planar_gbrapf32le_to_y_512_avx2 : 658.5planar_gbrp_to_uv_512_c : 2325.8
planar_gbrp_to_uv_512_sse2 : 1726.8
planar_gbrp_to_uv_512_sse4 : 771.8
planar_gbrp_to_uv_512_avx2 : 506.8
planar_gbrap_to_uv_512_c : 2281.8
planar_gbrap_to_uv_512_sse2 : 1726.3
planar_gbrap_to_uv_512_sse4 : 768.3
planar_gbrap_to_uv_512_avx2 : 496.3
planar_gbrp9be_to_uv_512_c : 2336.8
planar_gbrp9be_to_uv_512_sse2 : 1924.8
planar_gbrp9be_to_uv_512_sse4 : 852.3
planar_gbrp9be_to_uv_512_avx2 : 552.8
planar_gbrp9le_to_uv_512_c : 2270.3
planar_gbrp9le_to_uv_512_sse2 : 1512.3
planar_gbrp9le_to_uv_512_sse4 : 764.3
planar_gbrp9le_to_uv_512_avx2 : 491.3
planar_gbrp10be_to_uv_512_c : 2281.8
planar_gbrp10be_to_uv_512_sse2 : 1917.8
planar_gbrp10be_to_uv_512_sse4 : 855.3
planar_gbrp10be_to_uv_512_avx2 : 541.3
planar_gbrp10le_to_uv_512_c : 2269.8
planar_gbrp10le_to_uv_512_sse2 : 1515.3
planar_gbrp10le_to_uv_512_sse4 : 759.8
planar_gbrp10le_to_uv_512_avx2 : 487.8
planar_gbrap10be_to_uv_512_c : 2382.3
planar_gbrap10be_to_uv_512_sse2 : 1924.8
planar_gbrap10be_to_uv_512_sse4 : 855.3
planar_gbrap10be_to_uv_512_avx2 : 540.8
planar_gbrap10le_to_uv_512_c : 2382.3
planar_gbrap10le_to_uv_512_sse2 : 1512.3
planar_gbrap10le_to_uv_512_sse4 : 759.3
planar_gbrap10le_to_uv_512_avx2 : 484.8
planar_gbrp12be_to_uv_512_c : 2283.8
planar_gbrp12be_to_uv_512_sse2 : 1936.8
planar_gbrp12be_to_uv_512_sse4 : 858.3
planar_gbrp12be_to_uv_512_avx2 : 541.3
planar_gbrp12le_to_uv_512_c : 2278.8
planar_gbrp12le_to_uv_512_sse2 : 1507.3
planar_gbrp12le_to_uv_512_sse4 : 760.3
planar_gbrp12le_to_uv_512_avx2 : 485.8
planar_gbrap12be_to_uv_512_c : 2385.3
planar_gbrap12be_to_uv_512_sse2 : 1927.8
planar_gbrap12be_to_uv_512_sse4 : 855.3
planar_gbrap12be_to_uv_512_avx2 : 539.8
planar_gbrap12le_to_uv_512_c : 2377.3
planar_gbrap12le_to_uv_512_sse2 : 1516.3
planar_gbrap12le_to_uv_512_sse4 : 759.3
planar_gbrap12le_to_uv_512_avx2 : 484.8
planar_gbrp14be_to_uv_512_c : 2283.8
planar_gbrp14be_to_uv_512_sse2 : 1935.3
planar_gbrp14be_to_uv_512_sse4 : 852.3
planar_gbrp14be_to_uv_512_avx2 : 540.3
planar_gbrp14le_to_uv_512_c : 2276.8
planar_gbrp14le_to_uv_512_sse2 : 1514.8
planar_gbrp14le_to_uv_512_sse4 : 762.3
planar_gbrp14le_to_uv_512_avx2 : 484.8
planar_gbrp16be_to_uv_512_c : 2383.3
planar_gbrp16be_to_uv_512_sse2 : 1881.8
planar_gbrp16be_to_uv_512_sse4 : 852.3
planar_gbrp16be_to_uv_512_avx2 : 541.8
planar_gbrp16le_to_uv_512_c : 2378.3
planar_gbrp16le_to_uv_512_sse2 : 1476.8
planar_gbrp16le_to_uv_512_sse4 : 765.3
planar_gbrp16le_to_uv_512_avx2 : 485.8
planar_gbrap16be_to_uv_512_c : 2382.3
planar_gbrap16be_to_uv_512_sse2 : 1886.3
planar_gbrap16be_to_uv_512_sse4 : 853.8
planar_gbrap16be_to_uv_512_avx2 : 550.8
planar_gbrap16le_to_uv_512_c : 2381.8
planar_gbrap16le_to_uv_512_sse2 : 1488.3
planar_gbrap16le_to_uv_512_sse4 : 765.3
planar_gbrap16le_to_uv_512_avx2 : 491.8
planar_gbrpf32be_to_uv_512_c : 4863.0
planar_gbrpf32be_to_uv_512_sse2 : 3347.5
planar_gbrpf32be_to_uv_512_sse4 : 1800.0
planar_gbrpf32be_to_uv_512_avx2 : 1199.0
planar_gbrpf32le_to_uv_512_c : 4725.0
planar_gbrpf32le_to_uv_512_sse2 : 2753.0
planar_gbrpf32le_to_uv_512_sse4 : 1474.5
planar_gbrpf32le_to_uv_512_avx2 : 927.5
planar_gbrapf32be_to_uv_512_c : 4859.0
planar_gbrapf32be_to_uv_512_sse2 : 3269.0
planar_gbrapf32be_to_uv_512_sse4 : 1802.0
planar_gbrapf32be_to_uv_512_avx2 : 1201.5
planar_gbrapf32le_to_uv_512_c : 6338.0
planar_gbrapf32le_to_uv_512_sse2 : 2756.5
planar_gbrapf32le_to_uv_512_sse4 : 1476.0
planar_gbrapf32le_to_uv_512_avx2 : 908.5planar_gbrap_to_a_512_c : 383.3
planar_gbrap_to_a_512_sse2 : 66.8
planar_gbrap_to_a_512_avx2 : 43.8
planar_gbrap10be_to_a_512_c : 601.8
planar_gbrap10be_to_a_512_sse2 : 86.3
planar_gbrap10be_to_a_512_avx2 : 34.8
planar_gbrap10le_to_a_512_c : 602.3
planar_gbrap10le_to_a_512_sse2 : 48.8
planar_gbrap10le_to_a_512_avx2 : 31.3
planar_gbrap12be_to_a_512_c : 601.8
planar_gbrap12be_to_a_512_sse2 : 111.8
planar_gbrap12be_to_a_512_avx2 : 41.3
planar_gbrap12le_to_a_512_c : 385.8
planar_gbrap12le_to_a_512_sse2 : 75.3
planar_gbrap12le_to_a_512_avx2 : 39.8
planar_gbrap16be_to_a_512_c : 386.8
planar_gbrap16be_to_a_512_sse2 : 79.8
planar_gbrap16be_to_a_512_avx2 : 31.3
planar_gbrap16le_to_a_512_c : 600.3
planar_gbrap16le_to_a_512_sse2 : 40.3
planar_gbrap16le_to_a_512_avx2 : 30.3
planar_gbrapf32be_to_a_512_c : 1148.8
planar_gbrapf32be_to_a_512_sse2 : 611.3
planar_gbrapf32be_to_a_512_sse4 : 234.8
planar_gbrapf32be_to_a_512_avx2 : 183.3
planar_gbrapf32le_to_a_512_c : 851.3
planar_gbrapf32le_to_a_512_sse2 : 263.3
planar_gbrapf32le_to_a_512_sse4 : 199.3
planar_gbrapf32le_to_a_512_avx2 : 156.8Reviewed-by : Paul B Mahol <onemda@gmail.com>
Signed-off-by : James Almer <jamrial@gmail.com> -
ffmpeg chains parameters and options while being used in a loop
10 janvier 2024, par Simon NazarenkoI got a code that generates videos from scratch (got gifs, captions and audio). It works amazing when done once, however, when put in a loop and it should create more than 1 video it freezes being caused by memory leak. Upon investigation I realized that ffmpeg (v1.1.0) chains the loop iterations carrying the parameters and options from the first iteration to the second. It then breaks (overwrites) the first video and infinitely writes the second.


This is my dependency


const ffmpeg = require("fluent-ffmpeg")()
 .setFfprobePath(ffprobe.path)
 .setFfmpegPath(ffmpegInstaller.path)



It looks like this


async function convertGifToVideo(
 gifFile,
 audioFile,
 subtitlesFile,
 tempDirectory
) {
 return new Promise((resolve, reject) => {
 const outputFile = `${tempDirectory}/video_${Date.now()}.mp4`
 
 ffmpeg
 .input(gifFile)
 .inputFormat("gif")
 .inputOptions("-stream_loop -1")
 .input(audioFile)
 .outputOptions("-shortest")
 .outputOptions(`-vf subtitles=${subtitlesFile}`)
 .outputOptions("-report")
 .output(outputFile)
 .on("end", () => {
 console.log(`Combined ${gifFile} and ${audioFile} into ${outputFile}`)
 resolve(outputFile)
 })
 .on("error", (err, stdout, stderr) => {
 console.error("Error combining GIF and audio:", err)
 console.error("ffmpeg stdout:", stdout)
 console.error("ffmpeg stderr:", stderr)
 reject(err)
 })
 .run()
 })
}



And it's called in a loop


for (const key in script) {
 if (script.hasOwnProperty(key)) {
 ...stuff

 const videoFileName = await convertGifToVideo(
 gifFileName,
 audioFileName,
 subtitlesFileName,
 tempDirectory
 )
 }
 }



Here is a piece of log from the first video generation




ffmpeg started on 2024-01-10 at 02:58:52
Report written to "ffmpeg-20240110-025852.log"
Command line :
/home/simon/Documents/AFYTUBE/node_modules/@ffmpeg-installer/linux-x64/ffmpeg -f gif -stream_loop -1 -i ./temp/gif_funny_frogs.gif -i ./temp/funny_frogs.mp3 -y -shortest -vf "subtitles=./temp/funny_frogs.srt" -report ./temp/video_1704880732780.mp4




Here is a piece of log from the second one




/home/simon/Documents/AFYTUBE/node_modules/@ffmpeg-installer/linux-x64/ffmpeg -f gif -stream_loop -1 -i ./temp/gif_funny_frogs.gif -i ./temp/funny_frogs.mp3 -f gif -stream_loop -1 -i ./temp/gif_leg_exercises.gif -i ./temp/leg_exercises.mp3 -y -shortest -vf "subtitles=./temp/funny_frogs.srt" -report -shortest -vf "subtitles=./temp/leg_exercises.srt" -report ./temp/video_1704880732780.mp4 ./temp/video_1704880750879.mp4




Any ideas what I am doing wrong ?