obtainBuffer() track 0x..... disabled, restarting

[iNdieboyjeff]

I've managed to compile everything OK, and have local files able to play, but when trying to use HLS streaming, both live and VOD files, I keep getting the above error in the Log, and nothing plays. Any idea what might be causing this?

[myrmidon-media]

Maybe it's related to #32

Try applying the patch on the last post

[iNdieboyjeff]

That seems to have solved most of the problems. Still a couple of streams I can't play but most are now working.

However I now have an issue on streams and local videos where we get 'blips' in the audio every couple of seconds the audio either seems to pause or drop-out temporarily (for a couple of frames only) or judder. There also seems to be a lot of GC going on in the Logcat.

[myrmidon-media]

Can you post a stream or upload a file so we can test it?

[iNdieboyjeff]

Here is a stream that doesn't load.... http://akamedia2.lsops.net/live/smil:bbcnews_en.smil/playlist.m3u8

I'll see if I can find something with the 'popping' issue....

[iNdieboyjeff]

Hmm, the 'popping/drop-out' issue - I've tried the same streams on a Galaxy SIII and the streams/files play without this issue showing itself, whereas on a Galaxy Tab 10 I get this problem. So I'm wondering if it is processor/memory related and a GT10 is a much older device. And the question then would be is there anything we can do to resolve the problem on older devices?

[myrmidon-media]

@iNdieboyjeff

The stream plays fine here. Regarding the popping/drop-out' issue I'm pretty sure it's related to device not being faster enough.

Although Galaxy tab 10 should be fast enough for this kind of stream, are you testing on https://review.appunite.com/#/c/4017 or on github's version? The latest version (https://review.appunite.com/#/c/4017) has speed improvements, see AnativeWindow for reference http://vec.io/posts/how-to-render-image-buffer-in-android-ndk-native-code.

[iNdieboyjeff]

I've tried doing a clean build based on https://review.appunite.com/#/c/4017 and I still can't play the HLS stream specified. I get the following Logcat:

05-08 10:42:43.840: E/ffmpeg(3867): max_analyze_duration 5000000 reached at 5000000
05-08 10:42:43.840: E/ffmpeg(3867): Could not find codec parameters for stream 0 (Unknown: none ([21][0][0][0] / 0x0015)): unknown codec
05-08 10:42:43.840: E/ffmpeg(3867): Consider increasing the value for the 'analyzeduration' and 'probesize' options
05-08 10:42:43.850: E/ffmpeg(3867): Estimating duration from bitrate, this may be inaccurate
05-08 10:42:45.500: E/ffmpeg(3867): max_analyze_duration 5000000 reached at 5000000
05-08 10:42:45.500: E/ffmpeg(3867): Could not find codec parameters for stream 0 (Unknown: none ([21][0][0][0] / 0x0015)): unknown codec
05-08 10:42:45.500: E/ffmpeg(3867): Consider increasing the value for the 'analyzeduration' and 'probesize' options
05-08 10:42:45.500: E/ffmpeg(3867): Estimating duration from bitrate, this may be inaccurate
05-08 10:42:48.810: E/ffmpeg(3867): max_analyze_duration 5000000 reached at 5000000
05-08 10:42:48.810: E/ffmpeg(3867): Could not find codec parameters for stream 0 (Unknown: none ([21][0][0][0] / 0x0015)): unknown codec
05-08 10:42:48.810: E/ffmpeg(3867): Consider increasing the value for the 'analyzeduration' and 'probesize' options
05-08 10:42:48.820: E/ffmpeg(3867): Estimating duration from bitrate, this may be inaccurate

[myrmidon-media]

Try adding this to VideoActivity:

private void setDataSource() {
        HashMap<String, String> params = new HashMap<String, String>();

        // set font for ass
        File assFont = new File(Environment.getExternalStorageDirectory(),
                "DroidSansFallback.ttf");
        params.put("ass_default_font_path", assFont.getAbsolutePath());
+       params.put("analyzeduration", "0");

....

[iNdieboyjeff]

That didn't seem to help I'm afraid

[myrmidon-media]

Really? I'm testing with analyzeduration 0 and works great here.

Well try hardcoding it in player.c:

int player_open_input(struct Player *player, const char *file_path,
        AVDictionary *dictionary) {

+   av_dict_set(&dictionary, "analyzeduration", "0", 0);

    int ret;
    if ((ret = avformat_open_input(&(player->input_format_ctx), file_path, NULL,
            &dictionary)) < 0) {



.....

[myrmidon-media]

If above doesn't work make sure you've compiled ffmpeg with required options for playing hls streams.

Btw you've pulled fromm https://review.appunite.com/#/c/4017 and then applied the patch on #32 no?

[iNdieboyjeff]

Yep all of that has been done. Latest from appunite, and patch 32. Other HLS streams do play so I'm assuming it's not the HLS support per-se. It does seem to be a very odd problem.

[myrmidon-media]

can you post the stream?

[iNdieboyjeff]

I'll try the code change you suggest - will take a little while to compile it up...

The stream is the one I mentioned earlier #38 (comment), whereas other ones I use work fine (well appart from the judder/popping issue anyway).

[myrmidon-media]

Well the stream you posted works fine here with analyzeduration 0. You don't have to make a clean recompile. Just add the line above and then ndk-build -j2

[iNdieboyjeff]

Tried that and it didn't help - in fact made performance worse for some items. There definitely seems to be a problem with adaptive HLS streams.

[ksotik]

I have this error with obtainBuffer() too with H.264/AAC Mpeg-TS HTTP streams (live stream and files), encoded with ffmpeg+libx264 high/baseline profile. But SD streams with low bitrate (lower than 1mbps) works better then HD and SD with bitrate > 1 mbps, HD plays with big audio freezes and low fps.
How to solve this? Another players (VLC, MX Player) play this streams fine on android.
Thank you for help.

[myrmidon-media]

@ksotik

Probably @jacek-marchwicki can speak wiser than me. But to solve this, player needs either hw acceleration or frame skippping algorithm for sw decoder. Neither of them are currently implemented

[wankey]

it‘s happened when I play .wmv,and the video paused.how can I fix it?