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The Slip - Artworks
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
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Podcasting Legal guide
16 mai 2011, par
Mis à jour : Mai 2011
Langue : English
Type : Texte
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Creativecommons informational flyer
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Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (53)
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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 -
Emballe médias : à quoi cela sert ?
4 février 2011, parCe plugin vise à gérer des sites de mise en ligne de documents de tous types.
Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ; -
Keeping control of your media in your hands
13 avril 2011, parThe vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)
Sur d’autres sites (8663)
-
Problem playing a sound with pydub Error : pydub.exceptions.CouldntDecodeError : Decoding failed. ffmpeg returned error code : 1
28 mai 2020, par studioDKRI have a problem getting a file played in the browser with pydub. I think the function is working, but I just don't get the right file path to it, or something else is missing. Would love to get your help !



I get the pydob error message : pydub.exceptions.CouldntDecodeError : Decoding failed. ffmpeg returned error code : 1



Here is the error I get :



[2020-05-28 16:04:33,023] ERROR in app: Exception on /overview [POST]
Traceback (most recent call last):
 File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask/app.py", line 2447, in wsgi_app
 response = self.full_dispatch_request()
 File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask/app.py", line 1952, in full_dispatch_request
 rv = self.handle_user_exception(e)
 File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask/app.py", line 1821, in handle_user_exception
 reraise(exc_type, exc_value, tb)
 File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask/_compat.py", line 39, in reraise
 raise value
 File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask/app.py", line 1950, in full_dispatch_request
 rv = self.dispatch_request()
 File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/flask/app.py", line 1936, in dispatch_request
 return self.view_functions[rule.endpoint](**req.view_args)
 File "/Users/Micha/Documents/GitHub/podprod/app.py", line 109, in overview
 sound = AudioSegment.from_file(filepath)
 File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/pydub/audio_segment.py", line 723, in from_file
 raise CouldntDecodeError(
pydub.exceptions.CouldntDecodeError: Decoding failed. ffmpeg returned error code: 1

Output from ffmpeg/avlib:

b'ffmpeg version 4.2.3 Copyright (c) 2000-2020 the FFmpeg developers\n built with Apple clang version 11.0.3 (clang-1103.0.32.59)\n configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.3 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags=-fno-stack-check --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack\n libavutil 56. 31.100 / 56. 31.100\n libavcodec 58. 54.100 / 58. 54.100\n libavformat 58. 29.100 / 58. 29.100\n libavdevice 58. 8.100 / 58. 8.100\n libavfilter 7. 57.100 / 7. 57.100\n libavresample 4. 0. 0 / 4. 0. 0\n libswscale 5. 5.100 / 5. 5.100\n libswresample 3. 5.100 / 3. 5.100\n libpostproc 55. 5.100 / 55. 5.100\n/Users/Micha/documents/github/podprod/uploads/test2.wav: Invalid data found when processing input\n'



This is the Flask route with the function I am writing.



@app.route("/overview", methods=["GET", "POST"])
def overview():

 entries = []

 # Open a file
 path = app.config["FILE_UPLOADS"]

 with os.scandir(path) as dirs:
 for entry in dirs:
 entries.append(entry.name)

 if request.method == "POST":
 filename = request.form['filename']

 filepath = os.path.join(app.config["FILE_UPLOADS"], filename)

 # Play the sound
 sound = AudioSegment.from_file(filepath)
 play(sound)

 return render_template('overview.html', entries=entries)



Here is the HTML template :



{% extends 'main_template.html' %}

 {% block title %}PodProd Podcast Overview{% endblock %}

 {% block main %}

 <div class="container">

 <h1>Here is an overview of your files</h1>

 <table class="table table-striped">
 <tr>
 <th>Filename</th>
 <th>Action</th>
 </tr>
 {% for result in entries %}
 {% if ".wav" in result %}
 <tr>
 <td>{{ result }}</td>
 <td><form action="" method="POST"> <button type="submit" class="btn btn-primary" value="{{" result="result">Play</button></form>
 </td></tr>
 {% endif %}
 {% endfor %}
 </table>

 </div>

 {% endblock %}


-
FFMPEG Streaming to twitch low bitrate
17 juillet 2020, par El_PresidenteI have a python script that will produce frames for a video stream. To stream it to twitch I decided to use ffmpeg (as it is the only option I found). However, the bitrate of my stream is very low (70 KB), although in ffmpeg options it's set to 3000K.


# This script copies the video frame by frame
import cv2
import subprocess as sp
twitch_stream_key = 'MY_TWITCH_STREAM_KEY'
input_file = 'video.mp4'

cap = cv2.VideoCapture(input_file)
ret, frame = cap.read()
height, width, ch = frame.shape

ffmpeg = 'FFMPEG'
dimension = '{}x{}'.format(width, height)

fps = cap.get(cv2.CAP_PROP_FPS)
command = []
command.extend([
 'FFMPEG',
 '-loglevel', 'verbose',
 '-y', # overwrite previous file/stream
 '-analyzeduration', '1',
 '-f', 'rawvideo',
 '-r', '%d' % fps, # set a fixed frame rate
 '-vcodec', 'rawvideo',
 # size of one frame
 '-s', '%dx%d' % (width, height),
 '-pix_fmt', 'rgb24', # The input are raw bytes
 '-thread_queue_size', '1024',
 '-i', '-', # The input comes from a pipe
]) 
command.extend([
 '-ar', '8000',
 '-ac', '1',
 '-f', 's16le',
 '-i', 'work.mp3',
])
command.extend([
 # VIDEO CODEC PARAMETERS
 '-vcodec', 'libx264',
 '-r', '%d' % fps,
 '-b:v', '3000k',
 '-s', '%dx%d' % (width, height),
 '-preset', 'faster', '-tune', 'zerolatency',
 '-crf', '23',
 '-pix_fmt', 'yuv420p',

 '-minrate', '3000k', '-maxrate', '3000k',
 '-bufsize', '12000k',
 '-g', '60', # key frame distance
 '-keyint_min', '1',

 # AUDIO CODEC PARAMETERS
 '-acodec', 'libmp3lame', '-ar', '44100', '-b:a', '160k',
 # '-bufsize', '8192k',
 '-ac', '1',
 '-map', '0:v', '-map', '1:a',

 '-threads', '2',
 # STREAM TO TWITCH
 '-f', 'flv', 'rtmp://live-hel.twitch.tv/app/%s' %
 twitch_stream_key
])
proc = sp.Popen(command, stdin=sp.PIPE, stderr=sp.PIPE)

while True:
 ret, frame = cap.read() 
 if not ret: 
 break 
 proc.stdin.write(frame.tostring())

cap.release()
proc.stdin.close()
proc.stderr.close()
proc.wait()


How can I increase the bitrate ? Maybe you can point me towards some different solution on how I can stream python frames to twitch or any other rtmp server.


Here is the complete log, the audio is also broken, it's just noise :


ffmpeg version git-2020-06-01-dd76226 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 9.3.1 (GCC) 20200523
 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
 libavutil 56. 49.100 / 56. 49.100
 libavcodec 58. 90.100 / 58. 90.100
 libavformat 58. 44.100 / 58. 44.100
 libavdevice 58. 9.103 / 58. 9.103
 libavfilter 7. 84.100 / 7. 84.100
 libswscale 5. 6.101 / 5. 6.101
 libswresample 3. 6.100 / 3. 6.100
 libpostproc 55. 6.100 / 55. 6.100
Input #0, rawvideo, from 'pipe:':
 Duration: N/A, start: 0.000000, bitrate: 1443225 kb/s
 Stream #0:0: Video: rawvideo, 1 reference frame (RGB[24] / 0x18424752), rgb24, 1920x1080, 1443225 kb/s, 29 tbr, 29 tbn, 29 tbc
[s16le @ 0000026d64eb5340] Estimating duration from bitrate, this may be inaccurate
Guessed Channel Layout for Input Stream #1.0 : mono
Input #1, s16le, from 'work.mp3':
 Metadata:
 encoded_by : iTunes v7.0
 Duration: 00:09:36.13, bitrate: 128 kb/s
 Stream #1:0: Audio: pcm_s16le, 8000 Hz, mono, s16, 128 kb/s
[tcp @ 0000026d64ee34c0] Starting connection attempt to 99.181.64.78 port 1935
[tcp @ 0000026d64ee34c0] Successfully connected to 99.181.64.78 port 1935
Stream mapping:
 Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
 Stream #1:0 -> #0:1 (pcm_s16le (native) -> mp3 (libmp3lame))
[graph 0 input from stream 0:0 @ 0000026d64f47c00] w:1920 h:1080 pixfmt:rgb24 tb:1/29 fr:29/1 sar:0/1
[scaler_out_0_0 @ 0000026d64f4c780] w:1920 h:1080 flags:'bicubic' interl:0
[scaler_out_0_0 @ 0000026d64f4c780] w:1920 h:1080 fmt:rgb24 sar:0/1 -> w:1920 h:1080 fmt:yuv420p sar:0/1 flags:0x4
[libx264 @ 0000026d64edf840] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000026d64edf840] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0000026d64edf840] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=2 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=4 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=2 lookahead_threads=2 sliced_threads=1 slices=2 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=1 keyint=60 keyint_min=1 scenecut=40 intra_refresh=0 rc_lookahead=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=3000 vbv_bufsize=12000 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
[graph_1_in_1_0 @ 0000026d651319c0] tb:1/8000 samplefmt:s16 samplerate:8000 chlayout:0x4
[format_out_0_1 @ 0000026d65132d80] auto-inserting filter 'auto_resampler_0' between the filter 'Parsed_anull_0' and the filter 'format_out_0_1'
[auto_resampler_0 @ 0000026d651331c0] ch:1 chl:mono fmt:s16 r:8000Hz -> ch:1 chl:mono fmt:s16p r:44100Hz
Output #0, flv, to 'rtmp://live-hel.twitch.tv/app/live_*************':
 Metadata:
 encoder : Lavf58.44.100
 Stream #0:0: Video: h264 (libx264), 1 reference frame ([7][0][0][0] / 0x0007), yuv420p(progressive), 1920x1080, q=-1--1, 3000 kb/s, 29 fps, 1k tbn, 29 tbc
 Metadata:
 encoder : Lavc58.90.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 3000000/0/3000000 buffer size: 12000000 vbv_delay: N/A
 Stream #0:1: Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 44100 Hz, mono, s16p, delay 1105, 160 kb/s
 Metadata:
 encoder : Lavc58.90.100 libmp3lame


-
Video watermarking with ffmpeg (output video size too big )
22 janvier 2020, par kartik bansali am running ffmpeg on video of size around 2 Mb and after watermarking them size of my video file is around 13-17 Mb. AM i doing something wrong. Please Help
My code is
ffmpeg -i "C:\flask\mobile_form\Videos\20191231140058_987654567.mp4" -i "C:\flask\mobile_form\resizeLogo.jpg" -filter_complex "[0:v][1:v]overlay=10:10,drawtext=text=Hello:fontsize=24:x=main_w-200:y=main_h-100,drawtext=text=World:fontsize=24:x=main_w-200:y=main_h-60" "C:\flask\mobile_form\waterMark\second.mp4"This is my full log, It is not giving any error but i want my output file to be smaller.
ffmpeg version git-2020-01-15-0dc0837 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9.2.1 (GCC) 20200111
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
libavutil 56. 38.100 / 56. 38.100
libavcodec 58. 65.103 / 58. 65.103
libavformat 58. 35.102 / 58. 35.102
libavdevice 58. 9.103 / 58. 9.103
libavfilter 7. 71.100 / 7. 71.100
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100Continued
Metadata:
encoder : Chrome
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)
Stream #0:1(eng): Video: vp8, yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 1k tbr, 1k tbn, 1k tbc (default)
Metadata:
alpha_mode : 1
Duration: 00:00:00.04, start: 0.000000, bitrate: 1727 kb/s
Stream #1:0: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 255x122 [SAR 120:120 DAR 255:122], 25 tbr, 25 tbn, 25 tbc
Fontconfig error: Cannot load default config file
[Parsed_drawtext_1 @ 000001ba5309d4c0] Using "C:/WINDOWS/fonts/mingliub.ttc"
Fontconfig error: Cannot load default config file
[Parsed_drawtext_2 @ 000001ba53051640] Using "C:/WINDOWS/fonts/mingliub.ttc"
Stream mapping:
Stream #0:1 (vp8) -> overlay:main (graph 0)
Stream #1:0 (mjpeg) -> overlay:overlay (graph 0)
drawtext (graph 0) -> Stream #0:0 (libx264)
Stream #0:0 -> #0:1 (opus (native) -> aac (native))
Press [q] to stop, [?] for help
Fontconfig error: Cannot load default config file
[Parsed_drawtext_1 @ 000001ba53c06280] Using "C:/WINDOWS/fonts/mingliub.ttc"
Fontconfig error: Cannot load default config file
[Parsed_drawtext_2 @ 000001ba53c40d40] Using "C:/WINDOWS/fonts/mingliub.ttc"
[swscaler @ 000001ba53caf380] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 000001ba5304e240] using SAR=1/1
[libx264 @ 000001ba5304e240] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001ba5304e240] profile High, level 5.2, 4:2:0, 8-bit
[libx264 @ 000001ba5304e240] 264 - core 159 - 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=15 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 'C:\Users\3427521kar\Desktop\New folder (2)\output30.mp4':
Metadata:
encoder : Lavf58.35.102
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 1k fps, 16k tbn, 1k tbc (default)
Metadata:
encoder : Lavc58.65.103 libx264
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, mono, fltp, 69 kb/s (default)
Metadata:
[libx264 @ 000001ba5304e240] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 000001ba5304e240] ref P L0: 77.1% 13.5% 8.3% 1.0% 0.0%
[libx264 @ 000001ba5304e240] ref B L0: 75.0% 24.5% 0.5%
[libx264 @ 000001ba5304e240] ref B L1: 94.1% 5.9%
[libx264 @ 000001ba5304e240] kb/s:1380.55
[aac @ 000001ba53067100] Qavg: 129.494here is the full log of my code
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