ESP32-audioI2S
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schreibfaul1
Radios with .TS extension extension do not work
Some radios use m3u8playlist which contains TS files inside. This file contains an empty video header and AAC encoded audio data. e.g this radio have TS stream https://bss1.neterra.tv/magicfm/magicfm.m3u8
I think this should be added to line 1835 for correct Sync word finding
&& (buf[i+1] != 0xFFu))
Hello Berran, thanks for your contribution, the syncword is FFFx which makes finding it difficult when a FFFFFF... block exists. If the tests are successful I will implement the correction.
TS files are difficult. There is probably always a sequence of 188 byte frames where the PID decides if the payload is part of the stream. But I don't really know.
With this improvement, your library now has the ability to find the correct start offset, but still can't play TS files. I spend several hours for find a solution but there are no success
Hi Berran, I cloned the Yokohama-Miyazawa (M5HLSPlayer) repo https://github.com/Yokohama-Miyazawa/M5HLSPlayer and saved it as a PlatformIO project with minor changes, see https://github.com/schreibfaul1/M5HLSPlayer it is able to play ts streams. Yokohama did a good job. In the next few days I will explore how TS streams work.
Thank you for your reply. I tried cloned code of Yokohama-Miyazawa, it's working with TS streams. But your code can decode almost all streams except TS.
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In the 2000's I had a dvb-c card to watch digital tv, that wasn't seen in my country at that time. I did :-) It was also in mpeg TS (transport stream). The problem is that you can not play it it properly, because it is not divided in to frames like a evry other mpeg is. You need to converted first to a valid format.
Only AAC transport streams work, no *.ts as used with IPTV.
Example: https://air.pc.cdn.bitgravity.com/air/live/pbaudio001/playlist.m3u8 In the m3u8 playlist there is a link to https://air.pc.cdn.bitgravity.com/air/live/pbaudio001/chunklist.m3u8 and there you will find several ts files: https://air.pc.cdn.bitgravity.com/air/live/pbaudio001/media_29493.ts https://air.pc.cdn.bitgravity.com/air/live/pbaudio001/media_29494.ts which are then played, after which the playlist is fetched again and contains the next *.ts files. The *.ts files are only valid and available for a short time.
An valid AAC audio stream has the identifier #EXT-X-STREAM-INF:'mp4a.40, everything else is discarded