dburckh / media3avi Goto Github PK

I'd suggest using Jitpack to publish the artifact instead of Github repository, as there you don't need credentials and it's quite easy to setup.

Currently playing an MP4V file with B frames stutters because the code uses the default linear clock in VideoStreamHandler. We need to enhance Mp4VStreamHandler to detect the B frames and fix the timing. This would be similar to the PicClock logic in AvcStreamHandler.

Hi, I use this library to play MJPEG stream: http://webcam1.vilhelmina.se/mjpg/video.mjpg but failed.
Log here:

internalError [eventTime=8.78, mediaPos=0.00, window=0, period=0, loadError
  androidx.media3.exoplayer.source.UnrecognizedInputFormatException: None of the available extractors (JpegExtractor, FlvExtractor, FlacExtractor, WavExtractor, FragmentedMp4Extractor, Mp4Extractor, AmrExtractor, PsExtractor, OggExtractor, TsExtractor, MatroskaExtractor, AdtsExtractor, Ac3Extractor, Ac4Extractor, AviExtractor, Mp3Extractor, JpegExtractor) could read the stream.
      at androidx.media3.exoplayer.source.BundledExtractorsAdapter.init(BundledExtractorsAdapter.java:101)
      at androidx.media3.exoplayer.source.ProgressiveMediaPeriod$ExtractingLoadable.load(ProgressiveMediaPeriod.java:1018)
      at androidx.media3.exoplayer.upstream.Loader$LoadTask.run(Loader.java:414)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
      at java.lang.Thread.run(Thread.java:923)
]

I have used JpegExtractor for MJPEG but not working, MJPEG stream's response header is like Content-Type=[multipart/x-mixed-replace; boundary=myboundary] that's a multipart response.

Looks like we are missing a MJpegExtractor to handle this.

The current Clock objects are all based on chunk count. This works perfectly for video as the chunk count is 1:1 with the frames. It also works well with audio streams with a constant chunk size. Unfortunately, for audio streams with variable chunk sizes, it breaks badly.

My current thought is to create a BitrateClock bases on the number of bytes that have passed in the stream. Chunk sizes are available in both base and OpenDML indices. This change would require an update to the SeekMap. My current thought is to store the audio stream time offset from the video time in the SeekMap instead of the audio chunkIndex.

Caused by: androidx.media3.exoplayer.upstream.Loader$UnexpectedLoaderException: Unexpected ArithmeticException: divide by zero
at androidx.media3.exoplayer.upstream.Loader$LoadTask.run(Loader.java:435)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:929)
Caused by: java.lang.ArithmeticException: divide by zero
at com.homesoft.exo.extractor.avi.ChunkIndex.getChunkSubset(ChunkIndex.java:122)
at com.homesoft.exo.extractor.avi.AudioStreamHandler.setSeekStream(AudioStreamHandler.java:62)
at com.homesoft.exo.extractor.avi.AviExtractor.buildSeekMap(AviExtractor.java:153)
at com.homesoft.exo.extractor.avi.AviExtractor.parseIdx1(AviExtractor.java:337)
at com.homesoft.exo.extractor.avi.AviExtractor$RiffReader.read(AviExtractor.java:567)
at com.homesoft.exo.extractor.avi.AviExtractor.read(AviExtractor.java:406)
at androidx.media3.exoplayer.source.BundledExtractorsAdapter.read(BundledExtractorsAdapter.java:129)
at androidx.media3.exoplayer.source.ProgressiveMediaPeriod$ExtractingLoadable.load(ProgressiveMediaPeriod.java:1040)
at androidx.media3.exoplayer.upstream.Loader$LoadTask.run(Loader.java:414)

I added the media3-avi library to my project. It plays most of *.avi files, except one (I attached it to this issue).

breakdance.avi.zip

When I included source in my project build failed:

main\java\com\homesoft\exo\extractor\avi\BoxReader.java:9: error: package com.homesoft.exo.avi does not exist

import com.homesoft.exo.avi.BuildConfig;

BoxReader.java:68: error: cannot find symbol

if (BuildConfig.DEBUG && position > getEnd()) {

Where do I find this package? Thanks.

info

libavutil 57. 13.100 / 57. 13.100
libavcodec 59. 15.102 / 59. 15.102
libavformat 59. 10.100 / 59. 10.100
libavdevice 59. 1.100 / 59. 1.100
libavfilter 8. 21.100 / 8. 21.100
libswscale 6. 1.102 / 6. 1.102
libswresample 4. 0.100 / 4. 0.100
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, avi, from '/storage/emulated/0/BaiduNetdisk/我的资源/深入浅出计算机组成原理《更新中》等多个文件/应用软件开发技术(VB.NET)/30.avi':
Duration: 00:38:27.00, start: 0.000000, bitrate: 93 kb/s
Stream #0:0: Video: mpeg4 (XVID / 0x44495658), yuv420p, 800x600 [SAR 1:1 DAR 4:3], 69 kb/s, 10 fps, 10 tbr, 10 tbn
Stream #0:1: Audio: wmav2 (a[1][0][0] / 0x0161), 22050 Hz, mono, fltp, 19 kb/s
At least one output file must be specified

Is it because wmav2 not supported ?