Concatenation demuxer of FFmpeg not functioning: No output and error messages
The error only occurs when using the audio tag to load a video, as the sound in videos from sources like YouTube still works. Despite trying to load external videos, the error persists.
FFmpeg concat demuxer not working: No error, and no output
The issue is that three files with the same format were exported together using the demuxer ffmpeg concat. They all have an identical number, settings) concatenated. The command runs without any errors, but there is no output file generated. This occurred on Mac OS 10.15.6 with ffmpeg version 4.3.1, and there were no console printouts.
Merge the contents of the text file named "test.txt".
All of the ffprobe files have identical readouts with no audio streams.
Solution:
I made an error by forgetting to use the subprocess.call to execute the ffmpeg_cmd in my script. Fortunately, the FF command functioned properly when run directly from the console. I appreciate the helpful advice from @Gyan.
XBMC Add-ons Script Error Fix.
How to fix CHUNK_DEMUXER_ERROR_APPEND_FAILED error when append chunk?
In order to support multiple resolutions, my goal is to develop a video player that can load various codecs in chunks.
After successfully appending a chunk with the same codec, I attempted to utilize changeType(). However, upon appending the new codec chunk to the video element, I encountered the error message "CHUNK_DEMUXER_ERROR_APPEND_FAILED: Append: stream parsing failed.
How can I fix it?
Solution:
It is highly unlikely that you require the usage of changeType in this scenario. This is mainly utilized for switching codecs (such as avc to hevc) or containers (such as mp4 to webm), whereas you are only switching within the same codec and container.
The issue most likely stems from the fact that an initialization segment is not being appended when changing the quality, as it is only done for the initial quality level.
Ensure an adequate initialization segment is added prior to the first media segment of each newly introduced quality.
Chromium "FFmpegDemuxer: open context failed" when playing audio
Upon attempting to listen to audio within chromium, such as through google translate or an icecast radio station, a terminal error is generated.
The audio tag is the only element experiencing issues as sound on videos, such as those on YouTube, continues to function properly.
My chromium version:
My ffmpeg version:
Radio station's .m3u files can still be downloaded and played without any issue on VLC, which also uses libav libraries. Firefox also allows the playback of audio.
Solution 1:
I encountered a similar issue following the latest chromium upgrade. An email was sent outlining the modifications made in
Livewire98801 proposes the use of an alternative version of chromium, yet caution is advised against installing packages from testing into stable.
Avoid creating a Debian Frankenstein.
It is not recommended to mix Debian Stable with any other releases.
One can opt to install a previous version from debian stable as an alternative. Although it comes with security patches, it allows for video playback.
Deploys the stable (stretch) version that is older.
Solution 2:
The title of this thread, "Does anyone know how Chrome for Android or Android Webview plays Facebook videos?" seems to address the problem you are facing.
By including these files in your designated args.gn directory, the video playback should be enabled.
Enable in-house codecs in Chromium versions.
Solution 3:
Encountering a similar problem, I obtained the Testing package with the identical main version as the present one, albeit lacking the
The solution seems to have resolved various issues. The videos on Flickr are now functioning, and both the browser and web page notifications on Hangouts are also functional. It is disappointing that a critical change like this could make its way to the main repositories.
HTML5 video player gives errror when loading video located inside device using Ionic-v3
As part of my Ionic app development, I need to incorporate a functionality that allows users to upload videos within the app and view them.
Upon attempting to load the video through the application of <video> tag, an error message appears as follows:
"DEMUXER_ERROR_COULD_NOT_OPEN: FFmpegDemuxer: open context failed"
I tested loading external videos and they were successful. Additionally, I confirmed that accessing location displaying local images was without any issues.
- Ionic V3
- The version of the cordova-plugin-ionic-webview is 3.1.1.
- cordova-android 7.1.0
Solution:
The issue arose from the video file I was utilizing, which became damaged during the conversion process to a different format.
Chunk demuxer error append failed как исправить
Как исправить ошибку CHUNK_DEMUXER_ERROR_APPEND_FAILED при добавлении чанка?
Я хочу создать видеопроигрыватель, который может воспроизводить несколько разрешений, поэтому мне нужно загружать фрагменты разных кодеков.
Я попытался добавить кусок того же кодека, и он сработал. Итак, я попытался использовать changeType (), но когда я добавил новый фрагмент кодека в элемент видео, я обнаружил эту ошибку «CHUNK_DEMUXER_ERROR_APPEND_FAILED: Append: Ошибка синтаксического анализа потока».
Как я могу это исправить?
1 ответ
Вам почти наверняка не нужно использовать здесь changeType , поскольку он обычно используется для изменения кодека (например, avc -> hevc) или контейнера (например, mp4 -> webm), тогда как вы просто переключаетесь в том же кодеке и контейнер.
Проблема почти наверняка в том, что вы не добавляете сегмент инициализации при изменении качества — вы делаете это только для первого уровня качества.
Исправление: вставьте соответствующий сегмент инициализации перед первым сегментом мультимедиа каждого нового качества.
demuxer.dll: что это? и как его убрать
В вашей системе запущено много процессов, которые потребляют ресурсы процессора и памяти. Некоторые из этих процессов, кажется, являются вредоносными файлами, атакующими ваш компьютер.
Чтобы исправить критические ошибки demuxer.dll,скачайте программу Asmwsoft PC Optimizer и установите ее на своем компьютере
Прочтите эти руководства, чтобы решить проблемы с demuxer.dll:
- совет: Очистите реестр, чтобы исправить demuxer.dll, которое перестало работать из-за ошибки.
- совет: Как удалить заблокированный файл demuxer.dll
- совет: Очистите мусорные файлы, чтобы исправить demuxer.dll, которое перестало работать из-за ошибки.
Как другие пользователи поступают с этим файлом?
Всего голосов ( 181 ), 115 говорят, что не будут удалять, а 66 говорят, что удалят его с компьютера.
Как вы поступите с файлом demuxer.dll?
Некоторые сообщения об ошибках, которые вы можете получить в связи с demuxer.dll файлом
- (demuxer.dll) столкнулся с проблемой и должен быть закрыт. Просим прощения за неудобство.
- demuxer.dll. Эта программа не отвечает.
- (demuxer.dll) — Ошибка приложения: the instruction at 0xXXXXXX referenced memory error, the memory could not be read. Нажмитие OK, чтобы завершить программу.
- (demuxer.dll) не является ошибкой действительного windows-приложения.
- (demuxer.dll) отсутствует или не обнаружен.
DEMUXER.DLL
Проверьте процессы, запущенные на вашем ПК, используя базу данных онлайн-безопасности. Можно использовать любой тип сканирования для проверки вашего ПК на вирусы, трояны, шпионские и другие вредоносные программы.
Список вариантов процесса demuxer.dll :
Прочтите эти руководства, чтобы решить проблемы с demuxer.dll:
- совет: Очистите реестр, чтобы исправить demuxer.dll, которое перестало работать из-за ошибки.
- совет: Как удалить заблокированный файл demuxer.dll
- совет: Очистите мусорные файлы, чтобы исправить demuxer.dll, которое перестало работать из-за ошибки.
процессов:
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mpeg dash generated by this library does not work at chrome: CHUNK_DEMUXER_ERROR_APPEND_FAILED: Invalid video decoder config about mp4parser OPEN
The first mpeg dash fragment passed to video results in error:
CHUNK_DEMUXER_ERROR_APPEND_FAILED: Invalid video decoder config: codec: h264, profile: h264 baseline, level: not available, alpha_mode: is_opaque, coded size: [0,0], visible rect: [0,0,0,0], natural size: [1920,1080], has extra data: false, encryption scheme: Unencrypted, rotation: 0°, flipped: 0, color space:
By some reason it DOES work at firefox without any problems.
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Chrome Media Source Extension Error mp4
I am trying to use the MediaSource API to append separate MP4 videos to a single source.
Start the server ffmpeg Nodejs:
1) ffmpeg -i test.mp4 -f mp4 -vcodec libx264 -acodec aac -movflags faststart+frag_keyframe -g 0 http://127.0.0.1:8092
2) ffmpeg -i test.mp4 -f mp4 -vprofile baseline -b:v 500k -maxrate 500k -vcodec libx264 -x264opts level=3.0 -acodec aac -movflags faststart+frag_keyframe -g 0 -ac 2 http://127.0.0.1:8092
Both methods do not work. chrome://media-internals/ I get roughly the same results.
Everything works with webm, but mp4 does not work. ffmpeg is not the correct settings?
Video Element Error: MEDIA_ERR_SRC_NOT_SUPPORTED
I’m trying to play a dash mpd file with dash.js.I used axinom tutorial for guidance which suggested the command below for generating the mpd file.
The resulting mpd file
I then try to play it in dash.js using the JavaScript code below
But dash.js throws an error
How can i solve this error? I’m new to dash.js and mpeg-dash staff
1 Answer 1
I was able to solve the error by just removing the -segment-name option and it’s value. So my command look like this
-segment-name option was making my segments to overwrite each other. e.g video segments to be overwritten by audio segments. Overwriting was happening because both video and audio segments were being given the same names even when i use unique values to the -segment-name option.
-segment-name $RepresentationID$$ or -segment-name $Time$$
Eliminating this option make MP4Box to use the default value %s_dash for -segment-name . So audio segments will be named like this
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CHUNK_DEMUXER_ERROR_APPEND_FAILED: Append: stream parsing failed. works in reference client not our app #4070
CHUNK_DEMUXER_ERROR_APPEND_FAILED: Append: stream parsing failed. works in reference client not our app #4070
Comments
Environment
- The MPD passes the DASH-IF Conformance Tool on https://conformance.dashif.org/
- The stream has correct Access-Control-Allow-Origin headers (CORS)
- There are no network errors such as 404s in the browser console when trying to play the stream
- The issue observed is not mentioned on https://github.com/Dash-Industry-Forum/dash.js/wiki/FAQ
- [] The issue occurs in the latest reference client on http://reference.dashif.org/dash.js/ and not just on my page
- Link to playable MPD file: https://howio-dev-public.s3.ap-southeast-2.amazonaws.com/bad-video/assets/org/1/folder/191/e3bb3994-b0ec-4ba0-a368-09341ae1084e/cmaf.mpd
- Dash.js version: 4.5.0
- Browser name/version: Chrome 106.0.5249.119
- OS name/version: Window 10
Steps to reproduce
- Please provide clear steps to reproduce your problem
- If the bug is intermittent, give a rough frequency if possible
I’m trying to understand why this video plays in the latest reference client but not in our app.