DrKLO/Telegram · error · FrameProcessingException

The EXT_YUV_target extension is required for HDR editing…

Error message

The EXT_YUV_target extension is required for HDR editing input.

What it means

MatrixTextureProcessor.createWithExternalSamplerApplyingEotf throws FrameProcessingException('The EXT_YUV_target extension is required for HDR editing input.') when HDR editing is requested (ColorInfo.isTransferHdr) but the GPU does not expose the EXT_YUV_target OpenGL ES extension. HDR editing samples decoder output in YUV, which requires this extension to read the YUV external texture directly in the shader.

Solutions

1. Gate HDR editing on GlUtil.isYuvTargetExtensionSupported() and fall back to an SDR/tone-mapped path when unsupported.
2. Run the effects pipeline only on devices/GPUs known to advertise EXT_YUV_target (most modern Adreno/Mali GPUs).
3. If HDR is not required, pass an SDR ColorInfo so useHdr is false and the YUV path is skipped.

Example fix

// before
processor = MatrixTextureProcessor.createWithExternalSamplerApplyingEotf(ctx, mats, rgb, hdrColor);

// after
if (ColorInfo.isTransferHdr(hdrColor) && !GlUtil.isYuvTargetExtensionSupported()) {
  hdrColor = hdrColor.buildUpon().setColorTransfer(C.COLOR_TRANSFER_SDR).build();
}
processor = MatrixTextureProcessor.createWithExternalSamplerApplyingEotf(ctx, mats, rgb, hdrColor);

// gate HDR editing on the GPU extension
boolean hdrOk = ColorInfo.isTransferHdr(ci) && GlUtil.isYuvTargetExtensionSupported();
ColorInfo use = hdrOk ? ci : ci.buildUpon().setColorTransfer(C.COLOR_TRANSFER_SDR).build();
MatrixTextureProcessor.createWithExternalSamplerApplyingEotf(ctx, mats, rgb, use);

try { createWithExternalSamplerApplyingEotf(ctx, mats, rgb, hdrCi); }
catch (FrameProcessingException e) { /* fall back to SDR pipeline */ }

When it happens

Trigger: Invoking createWithExternalSamplerApplyingEotf with an HDR ColorInfo (HLG or ST2084 transfer) on a device/GPU lacking EXT_YUV_target, as reported by GlUtil.isYuvTargetExtensionSupported().

Common situations: Running HDR video editing/effects on older or lower-tier GPUs/emulators that do not advertise EXT_YUV_target; attempting HDR transformation pipelines on devices below the API/GPU requirement.

Related errors

• Could not store the LUT as a texture.
• AudioTrack init failed
• Cannot decode FLAC frame
• Cannot read frame at position
• Error instantiating extension

AI-assisted analysis of DrKLO/Telegram@45ab8f4308 (2026-08-14). Data as JSON: /api/errors/d8d6aa5b69286dbf. Report an issue: GitHub.

Appendix: source

Thrown at TMessagesProj/src/main/java/com/google/android/exoplayer2/effect/MatrixTextureProcessor.java:204

  public static MatrixTextureProcessor createWithExternalSamplerApplyingEotf(
      Context context,
      List<GlMatrixTransformation> matrixTransformations,
      List<RgbMatrix> rgbMatrices,
      ColorInfo electricalColorInfo)
      throws FrameProcessingException {
    boolean useHdr = ColorInfo.isTransferHdr(electricalColorInfo);
    String vertexShaderFilePath =
        useHdr ? VERTEX_SHADER_TRANSFORMATION_ES3_PATH : VERTEX_SHADER_TRANSFORMATION_PATH;
    String fragmentShaderFilePath =
        useHdr
            ? FRAGMENT_SHADER_TRANSFORMATION_EXTERNAL_YUV_ES3_PATH
            : FRAGMENT_SHADER_TRANSFORMATION_SDR_EXTERNAL_PATH;
    GlProgram glProgram = createGlProgram(context, vertexShaderFilePath, fragmentShaderFilePath);

    if (useHdr) {
      // In HDR editing mode the decoder output is sampled in YUV.
      if (!GlUtil.isYuvTargetExtensionSupported()) {
        throw new FrameProcessingException(
            "The EXT_YUV_target extension is required for HDR editing input.");
      }
      glProgram.setFloatsUniform(
          "uYuvToRgbColorTransform",
          electricalColorInfo.colorRange == C.COLOR_RANGE_FULL
              ? BT2020_FULL_RANGE_YUV_TO_RGB_COLOR_TRANSFORM_MATRIX
              : BT2020_LIMITED_RANGE_YUV_TO_RGB_COLOR_TRANSFORM_MATRIX);

      @C.ColorTransfer int colorTransfer = electricalColorInfo.colorTransfer;
      checkArgument(
          colorTransfer == C.COLOR_TRANSFER_HLG || colorTransfer == C.COLOR_TRANSFER_ST2084);
      glProgram.setIntUniform("uEotfColorTransfer", colorTransfer);
    } else {
      glProgram.setIntUniform("uApplyOetf", 0);
    }

    return new MatrixTextureProcessor(
        glProgram,

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