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Valkaama DVD Cover Outside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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Mis à jour : Février 2013
Langue : English
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Valkaama DVD Cover Inside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
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Type : Audio
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Mis à jour : Septembre 2011
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Type : Audio
Autres articles (112)
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Sur d’autres sites (6517)
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ffmpeg - Live stream to web browser [on hold]
21 octobre 2016, par Sreejith C MI was looking for a solution to stream my desktop live on my Windows system and found out ffmpeg is a good solution using dshow and everything is working fine and well. I’m using a C# wrapper for ffmpeg to record my desktop and I can save it in a local file.
The problem I have is that, I have to watch the stream on my Web browser ( Chrome / Firefox ). I can’t use Media Server’s like wowza, red5 and also can’t use ffserver.
I tried the ffmpeg wiki https://trac.ffmpeg.org/wiki and documentation but couldn’t figure out how to do this.
Please help me to figure out this, how I can do this.
-
moviepy VideoFileClip IndexError : list index out of range, OSError : MoviePy error : failed to read the duration of file
21 mai 2022, par Mohamed MedhatWe are recording videos from the browser with the following encoding
'video/webm ; codecs="vp8, opus"', then we upload these videos to an AWS S3 bucket.
Our ML model works on these videos, and one of the models needs to extarct the audio and process it.
Here is a code snapit for extracting the audio


import speech_recognition as sr
import moviepy.editor as me
from denoise2 import denoise
from sentence_transformers import SentenceTransformer
from sklearn.metrics.pairwise import cosine_similarity
import math

model_name = 'bert-base-nli-mean-tokens'
model = SentenceTransformer(model_name)


class recomm:
 y = 0.0

 def __init__(self, path, keywords):
 video_clip = me.VideoFileClip(r"{}".format(path))
 path2 = "y2.wav"
 video_clip.audio.write_audiofile(r"{}".format(path2), nbytes=2)
 recognizer = sr.Recognizer()
 """a = AudioSegment.from_wav(path2)
 a = a + 5
 a.export(path2, "wav")"""
 audio_clip = sr.AudioFile("{}".format(path2))
 with audio_clip as source:
 audio_file = recognizer.record(source)
 sent = []
 result = ""
 try:
 result = recognizer.recognize_google(audio_file)
 except sr.UnknownValueError:
 print("Can not process audio ")
 if not result:
 self.y = 0
 else:
 print(result)
 sent.append(result)
 sent = sent + keywords
 sent_vec3 = model.encode(sent)
 x = cosine_similarity(
 [sent_vec3[0]],
 sent_vec3[1:]
 )
 for i in range(len(x)):
 self.y = self.y + x[0][i]
 self.y = (self.y / (len(sent) - 1)) * 1000.0

 def res(self):
 if self.y < 0:
 self.y = 0
 return self.y



And that's the traceback,
the error occurred at this line


video_clip = me.VideoFileClip(r"{}".format(path))



Traceback (most recent call last):
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/moviepy/video/io/ffmpeg_reader.py", line 286, in ffmpeg_parse_infos
match = re.findall("([0-9][0-9]:[0-9][0-9]:[0-9][0-9].[0-9][0-9])", line)[0]
IndexError: list index out of range

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "main.py", line 90, in
main()
File "main.py", line 85, in main
interviews_channel.start_consuming()
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/pika/adapters/blocking_connection.py", line 1865, in start_consuming
self._process_data_events(time_limit=None)
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/pika/adapters/blocking_connection.py", line 2026, in _process_data_events
self.connection.process_data_events(time_limit=time_limit)
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/pika/adapters/blocking_connection.py", line 833, in process_data_events
self._dispatch_channel_events()
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/pika/adapters/blocking_connection.py", line 567, in _dispatch_channel_events
impl_channel._get_cookie()._dispatch_events()
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/pika/adapters/blocking_connection.py", line 1492, in _dispatch_events
consumer_info.on_message_callback(self, evt.method,
File "main.py", line 79, in callback
processing(json.loads(body))
File "main.py", line 34, in processing
r = recomm(path, keywords)
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/recommendation.py", line 17, in init
video_clip = me.VideoFileClip(r"{}".format(path))
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/moviepy/video/io/VideoFileClip.py", line 88, in init
self.reader = FFMPEG_VideoReader(filename, pix_fmt=pix_fmt,
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/moviepy/video/io/ffmpeg_reader.py", line 35, in init
infos = ffmpeg_parse_infos(filename, print_infos, check_duration,
File "/home/medo/Dev/Smart-remotely-interviewing-system/backend/Process-interview/test/lib/python3.8/site-packages/moviepy/video/io/ffmpeg_reader.py", line 289, in ffmpeg_parse_infos
raise IOError(("MoviePy error: failed to read the duration of file %s.\n"
OSError: MoviePy error: failed to read the duration of file 74b74292-3642-486a-8319-255bb7e7da5a-1647363285285.webm.
Here are the file infos returned by ffmpeg:

ffmpeg version 4.2.2-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8 (Debian 8.3.0-6)
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Input #0, matroska,webm, from '74b74292-3642-486a-8319-255bb7e7da5a-1647363285285.webm':
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, 29.42 fps, 29.42 tbr, 1k tbn, 1k tbc (default)
Metadata:
alpha_mode : 1
At least one output file must be specified



-
getting 2 video streams in output.mkv ?
3 janvier 2024, par KiritoIn short, I have 1 video.mkv and 1 subtitle.ass. Using ffmpeg, I am adding subtitles to the video without removing the previous subtitles that came with the video. The problem is that some videos' output.mkv files are getting a duplicate video stream. Not all the videos I tested have this issue. I have added the log of one of those for reference.


Here is my code :


ffmpeg -i input_video.mkv -i subtitle_path.ass -c:v copy -c:a copy -c:s copy -map 0:v:0
 -map 0:m:language:jpn -map 0:s -map 1 -metadata:s:s:3 language=ara -max_interleave_delta 0 -y output_path.mkv



\TEST> ffmpeg -i input_video.mkv -i subtitle_path.ass -c:v copy -c:a copy -c:s copy -map 0:v:0 -map 0:m:language:jpn -map 0:s -map 1 -metadata:s:s:3 language=ara -max_interleave_delta 0 -y output_path.mkv
ffmpeg version 2023-12-28-git-c1340f3439-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
 built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
 configuration: --enable-gpl --enable-version3 --enable-static --pkg-config=pkgconf --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-dxva2 --enable-d3d11va --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
 libavutil 58. 36.100 / 58. 36.100
 libavcodec 60. 36.100 / 60. 36.100
 libavformat 60. 20.100 / 60. 20.100
 libavdevice 60. 4.100 / 60. 4.100
 libavfilter 9. 14.102 / 9. 14.102
 libswscale 7. 6.100 / 7. 6.100
 libswresample 4. 13.100 / 4. 13.100
 libpostproc 57. 4.100 / 57. 4.100
Input #0, matroska,webm, from 'input_video.mkv':
 Metadata:
 encoder : libebml v1.3.5 + libmatroska v1.4.8
 creation_time : 2018-04-21T21:21:39.000000Z
 Duration: 00:24:26.56, start: 0.000000, bitrate: 2453 kb/s
 Stream #0:0(jpn): Video: h264 (High), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn (default)
 Metadata:
 BPS-eng : 2291326
 DURATION-eng : 00:24:26.465000000
 NUMBER_OF_FRAMES-eng: 35160
 NUMBER_OF_BYTES-eng: 420018724
 _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:1(jpn): Audio: aac (LC), 48000 Hz, stereo, fltp (default)
 Metadata:
 BPS-eng : 159375
 DURATION-eng : 00:24:26.560000000
 NUMBER_OF_FRAMES-eng: 68745
 NUMBER_OF_BYTES-eng: 29216626
 _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:2(eng): Subtitle: ass (default)
 Metadata:
 BPS-eng : 99
 DURATION-eng : 00:21:35.870000000
 NUMBER_OF_FRAMES-eng: 302
 NUMBER_OF_BYTES-eng: 16109
 _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:3(spa): Subtitle: ass
 Metadata:
 BPS-eng : 92
 DURATION-eng : 00:20:05.580000000
 NUMBER_OF_FRAMES-eng: 254
 NUMBER_OF_BYTES-eng: 13877
 _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:4(por): Subtitle: ass
 Metadata:
 BPS-eng : 91
 DURATION-eng : 00:20:05.580000000
 NUMBER_OF_FRAMES-eng: 254
 NUMBER_OF_BYTES-eng: 13846
 _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Input #1, ass, from 'subtitle_path.ass':
 Duration: N/A, bitrate: N/A
 Stream #1:0: Subtitle: ass
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
 Stream #0:0 -> #0:1 (copy)
 Stream #0:1 -> #0:2 (copy)
 Stream #0:2 -> #0:3 (copy)
 Stream #0:3 -> #0:4 (copy)
 Stream #0:4 -> #0:5 (copy)
 Stream #1:0 -> #0:6 (copy)
Output #0, matroska, to 'output_path.mkv':
 Metadata:
 encoder : Lavf60.20.100
 Stream #0:0(jpn): Video: h264 (High) (H264 / 0x34363248), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 23.98 tbr, 1k tbn (default)
 Metadata:
 BPS-eng : 2291326
 DURATION-eng : 00:24:26.465000000
 NUMBER_OF_FRAMES-eng: 35160
 NUMBER_OF_BYTES-eng: 420018724
 _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:1(jpn): Video: h264 (High) (H264 / 0x34363248), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 23.98 tbr, 1k tbn (default)
 Metadata:
 BPS-eng : 2291326
 DURATION-eng : 00:24:26.465000000
 NUMBER_OF_FRAMES-eng: 35160
 NUMBER_OF_BYTES-eng: 420018724
 _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:2(jpn): Audio: aac (LC) ([255][0][0][0] / 0x00FF), 48000 Hz, stereo, fltp (default)
 Metadata:
 BPS-eng : 159375
 DURATION-eng : 00:24:26.560000000
 NUMBER_OF_FRAMES-eng: 68745
 NUMBER_OF_BYTES-eng: 29216626
 _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:3(eng): Subtitle: ass (default)
 Metadata:
 BPS-eng : 99
 DURATION-eng : 00:21:35.870000000
 NUMBER_OF_FRAMES-eng: 302
 NUMBER_OF_BYTES-eng: 16109
 _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:4(spa): Subtitle: ass
 Metadata:
 BPS-eng : 92
 DURATION-eng : 00:20:05.580000000
 NUMBER_OF_FRAMES-eng: 254
 NUMBER_OF_BYTES-eng: 13877
 _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:5(por): Subtitle: ass
 Metadata:
 BPS-eng : 91
 DURATION-eng : 00:20:05.580000000
 NUMBER_OF_FRAMES-eng: 254
 NUMBER_OF_BYTES-eng: 13846
 _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
 _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream #0:6(ara): Subtitle: ass
Press [q] to stop, [?] for help
[out#0/matroska @ 000002995bf18bc0] video:820349kB audio:28532kB subtitle:65kB other streams:0kB global headers:5kB muxing overhead: 0.122471%
size= 849986kB time=00:23:40.86 bitrate=4900.6kbits/s speed= 326x



I am very Clueless as the command is working on some videos