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shaka-project / shaka-streamer

A simple config-file based approach to preparing streaming media, based on FFmpeg and Shaka Packager.
https://shaka-project.github.io/shaka-streamer/
Apache License 2.0
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Invalid MPD generation #58

Closed solaris7x closed 4 years ago

solaris7x commented 4 years ago

Issue: mpd files generated could not be played The player incorrectly assumes the provided mpd is live whereas the mpd is meant to be VOD

Note: HLS files generated with same do work on Bitmovin & Akamai player Couldn't get HLS to play on shaka-player demo , error 4015

Dash validator reports invalid Representation

Base OS: Ubuntu 18.04 LTS amd64 Shaka streamer installed with pip3 install --upgrade shaka-streamer FFmpeg custom built with flags in shaka-streamer tutorial: Link: Removed URL ffmpeg version n4.2.3 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04) configuration: --enable-libx264 --enable-libvpx --enable-libopus --enable-gpl --enable-libfreetype --enable-libfontconfig --enable-nvenc 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

I have attached the files generated with original and config used Dolby Leaf Sample : Removed URL Sintel MPD only Removed URL (Sintel original not being attached as it was too big but can fetched from link in input config) Very small output Removed URL I also tried to host these files on a hacky express server (Range Header supported) Dolby Leaf Sample HLS: Removed URL Dolby Leaf Sample DASH: Removed URL Sintel MPD only: Removed URL

Thank you for your time , I suspect this issue to be caused my incorrect config or ffmpeg build but I have rebuilt it several time on different machines but the result being same Also tried hosting files locally using expressjs static but the results being same Please Note the above mentioned drive and heroku links are for testing purposes and may not always work , in such case please contact me

Edit : Removed Hosted files due to lack of interaction , can mail or share files if needed

solaris7x commented 4 years ago

I tried to manually transcode the dolby leaf sample with same ffmpeg as above according to shaka packager tutorial and generate the mpd with packager , the mpd file seems to be working , If the above issue is due to my lack of knowledge / bad config , I do hope someone can enlighten me as I don't know which part is causing the issue

joeyparrish commented 4 years ago

61 appears to be similar enough that I suspect they share a root cause. I'm going to close this issue as a duplicate, even though it came first, because the other has more details (config snippets and MPD output snippet) that should be useful in debugging.