linkedin / linkedin/LiTr

TrackTranscoderException: No decoder found.Media transformation failed while trying to decode 4k video

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Description

Hi. when I try to compress a 4k video I get this exception:

com.linkedin.android.litr.exception.TrackTranscoderException: No decoder found.Media transformation failed for job id: 5e323a2b-4bf9-4f5a-b541-55edc9be47c5
Media format: {max-bitrate=23121000, track-id=1, level=32768, mime=video/avc, profile=65536, bitrate=7025384, language=und, display-width=3840, csd-1=java.nio.HeapByteBuffer[pos=0 lim=8 cap=8], durationUs=229200000, display-height=2160, width=3840, max-input-size=539574, frame-rate=25, height=2160, csd-0=java.nio.HeapByteBuffer[pos=0 lim=33 cap=33]}
Available media codec info list (Name, IsEncoder, Supported Types):
MediaCodecInfo: OMX.google.aac.decoder,false,[audio/mp4a-latm]
MediaCodecInfo: OMX.google.amrnb.decoder,false,[audio/3gpp]
MediaCodecInfo: OMX.google.amrwb.decoder,false,[audio/amr-wb]
MediaCodecInfo: OMX.google.flac.decoder,false,[audio/flac]
MediaCodecInfo: OMX.google.g711.alaw.decoder,false,[audio/g711-alaw]
MediaCodecInfo: OMX.google.g711.mlaw.decoder,false,[audio/g711-mlaw]
MediaCodecInfo: OMX.MTK.AUDIO.DECODER.GSM,false,[audio/gsm]
MediaCodecInfo: OMX.MTK.AUDIO.DECODER.MP3,false,[audio/mpeg]
MediaCodecInfo: OMX.google.mp3.decoder,false,[audio/mpeg]
MediaCodecInfo: OMX.google.opus.decoder,false,[audio/opus]
MediaCodecInfo: OMX.google.raw.decoder,false,[audio/raw]
MediaCodecInfo: OMX.google.vorbis.decoder,false,[audio/vorbis]
MediaCodecInfo: OMX.google.aac.encoder,true,[audio/mp4a-latm]
MediaCodecInfo: OMX.google.amrnb.encoder,true,[audio/3gpp]
MediaCodecInfo: OMX.google.amrwb.encoder,true,[audio/amr-wb]
MediaCodecInfo: OMX.google.flac.encoder,true,[audio/flac]
MediaCodecInfo: OMX.MTK.VIDEO.DECODER.AVC,false,[video/avc]
MediaCodecInfo: OMX.google.h264.decoder,false,[video/avc]
MediaCodecInfo: OMX.MTK.VIDEO.DECODER.H263,false,[video/3gpp]
MediaCodecInfo: OMX.google.h263.decoder,false,[video/3gpp]
MediaCodecInfo: OMX.MTK.VIDEO.DECODER.HEVC,false,[video/hevc]
MediaCodecInfo: OMX.google.hevc.decoder,false,[video/hevc]
MediaCodecInfo: OMX.MTK.VIDEO.DECODER.MPEG2,false,[video/mpeg2]
MediaCodecInfo: OMX.MTK.VIDEO.DECODER.MPEG4,false,[video/mp4v-es]
MediaCodecInfo: OMX.google.mpeg4.decoder,false,[video/mp4v-es]
MediaCodecInfo: OMX.MTK.VIDEO.DECODER.VPX,false,[video/x-vnd.on2.vp8]
MediaCodecInfo: OMX.google.vp8.decoder,false,[video/x-vnd.on2.vp8]
MediaCodecInfo: OMX.MTK.VIDEO.DECODER.VP9,false,[video/x-vnd.on2.vp9]
MediaCodecInfo: OMX.google.vp9.decoder,false,[video/x-vnd.on2.vp9]
MediaCodecInfo: OMX.MTK.VIDEO.DECODER.XVID,false,[video/xvid]
MediaCodecInfo: OMX.MTK.VIDEO.ENCODER.AVC,true,[video/avc]
MediaCodecInfo: OMX.google.h264.encoder,true,[video/avc]
MediaCodecInfo: OMX.MTK.VIDEO.ENCODER.H263,true,[video/3gpp]
MediaCodecInfo: OMX.google.h263.encoder,true,[video/3gpp]
MediaCodecInfo: OMX.MTK.VIDEO.ENCODER.MPEG4,true,[video/mp4v-es]
MediaCodecInfo: OMX.google.mpeg4.encoder,true,[video/mp4v-es]
MediaCodecInfo: OMX.google.vp8.encoder,true,[video/x-vnd.on2.vp8]

can anyone help me with this?

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the 4K video transformation using the reported video/avc media format and review the TrackTranscoderException together with the listed MediaCodecInfo entries. Determine why decoder selection fails despite AVC decoders being listed, then verify the behavior across the affected Android device configuration and confirm that the transformation completes successfully.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, java
Domain
audio-video-rtc, mobile-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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