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Side by Side Diff: webrtc/api/java/jni/androidmediaencoder_jni.cc

Issue 1830593003: Make QualityScaler more responsive to downgrades. (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Created 4 years, 9 months ago
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1 /* 1 /*
2 * Copyright 2015 The WebRTC project authors. All Rights Reserved. 2 * Copyright 2015 The WebRTC project authors. All Rights Reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source 5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
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376 if (scale_) { 376 if (scale_) {
377 if (codecType_ == kVideoCodecVP8) { 377 if (codecType_ == kVideoCodecVP8) {
378 // QP is obtained from VP8-bitstream for HW, so the QP corresponds to the 378 // QP is obtained from VP8-bitstream for HW, so the QP corresponds to the
379 // (internal) range: [0, 127]. And we cannot change QP_max in HW, so it is 379 // (internal) range: [0, 127]. And we cannot change QP_max in HW, so it is
380 // always = 127. Note that in SW, QP is that of the user-level range [0, 380 // always = 127. Note that in SW, QP is that of the user-level range [0,
381 // 63]. 381 // 63].
382 const int kLowQpThreshold = 32; 382 const int kLowQpThreshold = 32;
383 const int kBadQpThreshold = 92; 383 const int kBadQpThreshold = 92;
384 quality_scaler_.Init(kLowQpThreshold, kBadQpThreshold, false, 384 quality_scaler_.Init(kLowQpThreshold, kBadQpThreshold, false,
385 codec_settings->startBitrate, 385 codec_settings->startBitrate,
386 codec_settings->width, codec_settings->height); 386 codec_settings->width, codec_settings->height,
387 codec_settings->height, codec_settings->maxFramerate);
387 } else if (codecType_ == kVideoCodecH264) { 388 } else if (codecType_ == kVideoCodecH264) {
388 // H264 QP is in the range [0, 51]. 389 // H264 QP is in the range [0, 51].
389 const int kLowQpThreshold = 21; 390 const int kLowQpThreshold = 21;
390 const int kBadQpThreshold = 36; 391 const int kBadQpThreshold = 36;
391 quality_scaler_.Init(kLowQpThreshold, kBadQpThreshold, false, 392 quality_scaler_.Init(kLowQpThreshold, kBadQpThreshold, false,
392 codec_settings->startBitrate, 393 codec_settings->startBitrate, codec_settings->width,
393 codec_settings->width, codec_settings->height); 394 codec_settings->height, codec_settings->height,
395 codec_settings->maxFramerate);
394 } else { 396 } else {
395 // When adding codec support to additional hardware codecs, also configure 397 // When adding codec support to additional hardware codecs, also configure
396 // their QP thresholds for scaling. 398 // their QP thresholds for scaling.
397 RTC_NOTREACHED() << "Unsupported codec without configured QP thresholds."; 399 RTC_NOTREACHED() << "Unsupported codec without configured QP thresholds.";
398 scale_ = false; 400 scale_ = false;
399 } 401 }
400 quality_scaler_.SetMinResolution(kMinDimension, kMinDimension); 402 quality_scaler_.SetMinResolution(kMinDimension, kMinDimension);
401 quality_scaler_.ReportFramerate(codec_settings->maxFramerate);
402 QualityScaler::Resolution res = quality_scaler_.GetScaledResolution(); 403 QualityScaler::Resolution res = quality_scaler_.GetScaledResolution();
403 init_width = std::max(res.width, kMinDimension); 404 init_width = std::max(res.width, kMinDimension);
404 init_height = std::max(res.height, kMinDimension); 405 init_height = std::max(res.height, kMinDimension);
405 ALOGD << "Scaled resolution: " << init_width << " x " << init_height; 406 ALOGD << "Scaled resolution: " << init_width << " x " << init_height;
406 } 407 }
407 408
408 return codec_thread_->Invoke<int32_t>( 409 return codec_thread_->Invoke<int32_t>(
409 Bind(&MediaCodecVideoEncoder::InitEncodeOnCodecThread, 410 Bind(&MediaCodecVideoEncoder::InitEncodeOnCodecThread,
410 this, 411 this,
411 init_width, 412 init_width,
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1259 } 1260 }
1260 1261
1261 void MediaCodecVideoEncoderFactory::DestroyVideoEncoder( 1262 void MediaCodecVideoEncoderFactory::DestroyVideoEncoder(
1262 webrtc::VideoEncoder* encoder) { 1263 webrtc::VideoEncoder* encoder) {
1263 ALOGD << "Destroy video encoder."; 1264 ALOGD << "Destroy video encoder.";
1264 delete encoder; 1265 delete encoder;
1265 } 1266 }
1266 1267
1267 } // namespace webrtc_jni 1268 } // namespace webrtc_jni
1268 1269
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