TS Container with Multiple Audio Tracks

[osscv]

Problem: it was able to detect the DVB Subtittle in the TS Container after some effrot, but when select
the tracks, it was not able to show the DVB Subtittle properly (nothing shows).

Did anyone knows how to optimize or able to play it properly? (As MPV Player [Other Player} was able)

[osscv]

I do understand that the DVB Subtitles are bitmap-based subtitles.
At present, Media3 does not include a built-in renderer for DVB (bitmap) subtitles, therefore native subtitle rendering is not supported. Is this correct?

[FongMi]

Please refer to the template and provide a test url.

[oceanjules]

What do you mean by built-in renderer? We have

media/libraries/extractor/src/main/java/androidx/media3/extractor/text/dvb/DvbParser.java

Line 47 in 7cc1056

public final class DvbParser implements SubtitleParser {

Cues will have parsed bitmaps and SubtitleView inside PlayerView will render those.

media/libraries/extractor/src/main/java/androidx/media3/extractor/text/dvb/DvbParser.java

Lines 256 to 264 in 7cc1056

	cues.add(
	new Cue.Builder()
	.setBitmap(
	Bitmap.createBitmap(
	bitmap,
	baseHorizontalAddress,
	baseVerticalAddress,
	regionComposition.width,
	regionComposition.height))

We moved subtitle parsing from the renderer "side" to extractor "side". Have you disabled this flag:

media/libraries/extractor/src/main/java/androidx/media3/extractor/ts/TsExtractor.java

Line 111 in 7cc1056

public static final int FLAG_EMIT_RAW_SUBTITLE_DATA = 1;

.. or are you ising any custom extractor setup? Ideally you would try it out on our demos/main with your media URL and get a logcat.

[osscv]

@oceanjules Hi, Julia, here is a sample:
LIVE 1: https://o11.163189.xyz/stream/live/aod/
LIVE 2: https://o11.163189.xyz/stream/live/qj/
for you to test (please try it as soon as possible, as this stream was founded online, which is a sample of TS containing DVB Subtitles Tracks & Multiple Audio Tracks.

As a side of notes:
In my current implementations on Media3, i was able to detect the subtitle tracks but was unable to show the DVB sub properly for the TS container type (I tested with the MPV player it was able to play & detect the tracks as well.)

Disclaimer: I am not responsible for the content of the streams, as they were obtained from publicly available online sources.

[osscv]

@oceanjules My Solutions: #2973

[FongMi]

It appears your transcoding is not up to standard.
If you have permission to handle the video source or are forwarding on the server side (Edge Server), you can use FFmpeg to force a rewrite of the TS header and correct the missing data_alignment_indicator.

[icbaker]

Closing based on @FongMi's analysis that this content is malformed.