Yesterday, 05:16 PM
The error "FFmpeg exited with code 187" typically indicates a problem during video transcoding, particularly when hardware acceleration is involved, such as with Jellyfin or similar media servers. This error code often points to issues related to low-power encoding or hardware encoding setup.
Here are potential causes and troubleshooting steps:
Low Power Encoding Setup:
The error can occur if low-power encoding, especially for specific codecs like H264, is not correctly configured or supported by your integrated GPU (iGPU).
Action: Ensure your system and software (e.g., Jellyfin) are properly configured for hardware acceleration and that the necessary drivers and libraries for your specific GPU are installed and up-to-date.
Hardware Acceleration Configuration:
Incorrect settings in your media server (like Jellyfin's Dashboard -> Playback -> Transcoding) can lead to this error. This includes enabling or disabling specific codecs (HEVC, AV1) for hardware encoding.
Action: Review and adjust your hardware acceleration settings in your media server. Experiment with enabling or disabling different codecs for hardware encoding to see if it resolves the issue.
Permissions and User Context:
When running media servers in containers (e.g., Docker), insufficient permissions for the user running the container to access the GPU can cause transcoding failures.
Action: Ensure the user account running the container has the necessary permissions to access the GPU devices (e.g., by adding the user to the render group and passing the correct device mappings to the container).
GPU Device Mapping (in containers):
In virtualized environments or containers, incorrect mapping of GPU devices can lead to FFmpeg failing to utilize the hardware.
Action: Verify that the correct GPU device (e.g., /dev/dri/renderD12
is mapped to the container and that it is not already in use by another container or VM if using specific device paths like /dev/dri/renderD133.
FFmpeg Logs:
The most effective way to diagnose the specific cause is to examine the full FFmpeg logs, which provide detailed information about the commands being executed and any errors encountered during the transcoding process.
Action: Locate and analyze the FFmpeg logs generated by your media server or application to pinpoint the exact point of failure and relevant error messages.
Try re-encoding the files to mp4 might be a simple solution
Here are potential causes and troubleshooting steps:
Low Power Encoding Setup:
The error can occur if low-power encoding, especially for specific codecs like H264, is not correctly configured or supported by your integrated GPU (iGPU).
Action: Ensure your system and software (e.g., Jellyfin) are properly configured for hardware acceleration and that the necessary drivers and libraries for your specific GPU are installed and up-to-date.
Hardware Acceleration Configuration:
Incorrect settings in your media server (like Jellyfin's Dashboard -> Playback -> Transcoding) can lead to this error. This includes enabling or disabling specific codecs (HEVC, AV1) for hardware encoding.
Action: Review and adjust your hardware acceleration settings in your media server. Experiment with enabling or disabling different codecs for hardware encoding to see if it resolves the issue.
Permissions and User Context:
When running media servers in containers (e.g., Docker), insufficient permissions for the user running the container to access the GPU can cause transcoding failures.
Action: Ensure the user account running the container has the necessary permissions to access the GPU devices (e.g., by adding the user to the render group and passing the correct device mappings to the container).
GPU Device Mapping (in containers):
In virtualized environments or containers, incorrect mapping of GPU devices can lead to FFmpeg failing to utilize the hardware.
Action: Verify that the correct GPU device (e.g., /dev/dri/renderD12

FFmpeg Logs:
The most effective way to diagnose the specific cause is to examine the full FFmpeg logs, which provide detailed information about the commands being executed and any errors encountered during the transcoding process.
Action: Locate and analyze the FFmpeg logs generated by your media server or application to pinpoint the exact point of failure and relevant error messages.
Try re-encoding the files to mp4 might be a simple solution