message: av1: turn off a few tools that are not used for rtc
  Explicitly turn off obmc, warped motion, global motion and ref frame mv.
  Cr-Commit-Position: refs/heads/master@{#33075}
diff: @@ -316,6 +316,34 @@ int LibaomAv1Encoder::InitEncode(const VideoCodec* codec_settings,
  return WEBRTC_VIDEO_CODEC_ERROR;
  }
  + ret = aom_codec_control(&ctx_, AV1E_SET_ENABLE_OBMC, 0);
  + if (ret != AOM_CODEC_OK) {
  + RTC_LOG(LS_WARNING) << "LibaomAv1Encoder::EncodeInit returned " << ret
  + << " on control AV1E_SET_ENABLE_OBMC.";
  + return WEBRTC_VIDEO_CODEC_ERROR;
  + }
  +
  + ret = aom_codec_control(&ctx_, AV1E_SET_ENABLE_WARPED_MOTION, 0);
  + if (ret != AOM_CODEC_OK) {
  + RTC_LOG(LS_WARNING) << "LibaomAv1Encoder::EncodeInit returned " << ret
  + << " on control AV1E_SET_ENABLE_WARPED_MOTION.";
  + return WEBRTC_VIDEO_CODEC_ERROR;
  + }
  +
  + ret = aom_codec_control(&ctx_, AV1E_SET_ENABLE_GLOBAL_MOTION, 0);
  + if (ret != AOM_CODEC_OK) {
  + RTC_LOG(LS_WARNING) << "LibaomAv1Encoder::EncodeInit returned " << ret
  + << " on control AV1E_SET_ENABLE_GLOBAL_MOTION.";
  + return WEBRTC_VIDEO_CODEC_ERROR;
  + }
  +
  + ret = aom_codec_control(&ctx_, AV1E_SET_ENABLE_REF_FRAME_MVS, 0);
  + if (ret != AOM_CODEC_OK) {
  + RTC_LOG(LS_WARNING) << "LibaomAv1Encoder::EncodeInit returned " << ret
  + << " on control AV1E_SET_ENABLE_REF_FRAME_MVS.";
  + return WEBRTC_VIDEO_CODEC_ERROR;
  + }
  +
  return WEBRTC_VIDEO_CODEC_OK;
  }
  