Fix HDR effect pipeline

NPE in toneMap_hlgFrame_matchesGoldenFile and toneMap_pqFrame_matchesGoldenFile was created because a uEnableColorTransfer uniform was being created on the HDR path, when HDR shader files don't have this uniform. (they don't support disable color transfers right now)

Fix: only create the uniform when input is SDR.

manually tested on failing tests

PiperOrigin-RevId: 522002603

library/effect/src/main/java/com/google/android/exoplayer2/effect/DefaultShaderProgram.java

@@ -332,7 +332,6 @@ import java.util.List;
       ColorInfo outputColorInfo,
       ColorInfo outputColorInfo,
       boolean enableColorTransfers)
       boolean enableColorTransfers)
       throws VideoFrameProcessingException {
       throws VideoFrameProcessingException {
-    glProgram.setIntUniform("uEnableColorTransfer", enableColorTransfers ? GL_TRUE : GL_FALSE);
     boolean isInputTransferHdr = ColorInfo.isTransferHdr(inputColorInfo);
     boolean isInputTransferHdr = ColorInfo.isTransferHdr(inputColorInfo);
     @C.ColorTransfer int outputColorTransfer = outputColorInfo.colorTransfer;
     @C.ColorTransfer int outputColorTransfer = outputColorInfo.colorTransfer;
     if (isInputTransferHdr) {
     if (isInputTransferHdr) {
@@ -360,6 +359,7 @@ import java.util.List;
           outputColorTransfer != Format.NO_VALUE && outputColorTransfer != C.COLOR_TRANSFER_SDR);
           outputColorTransfer != Format.NO_VALUE && outputColorTransfer != C.COLOR_TRANSFER_SDR);
       glProgram.setIntUniform("uOutputColorTransfer", outputColorTransfer);
       glProgram.setIntUniform("uOutputColorTransfer", outputColorTransfer);
     } else {
     } else {
+      glProgram.setIntUniform("uEnableColorTransfer", enableColorTransfers ? GL_TRUE : GL_FALSE);
       checkArgument(
       checkArgument(
           outputColorInfo.colorSpace != C.COLOR_SPACE_BT2020,
           outputColorInfo.colorSpace != C.COLOR_SPACE_BT2020,
           "Converting from SDR to HDR is not supported.");
           "Converting from SDR to HDR is not supported.");