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| 1 /* |
| 2 * Copyright 2017 The WebRTC project authors. All Rights Reserved. |
| 3 * |
| 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 |
| 6 * tree. An additional intellectual property rights grant can be found |
| 7 * in the file PATENTS. All contributing project authors may |
| 8 * be found in the AUTHORS file in the root of the source tree. |
| 9 */ |
| 10 |
| 11 #include "webrtc/sdk/android/src/jni/videoencoderfactorywrapper.h" |
| 12 |
| 13 #include "webrtc/api/video_codecs/video_encoder.h" |
| 14 #include "webrtc/common_types.h" |
| 15 #include "webrtc/rtc_base/logging.h" |
| 16 #include "webrtc/sdk/android/src/jni/classreferenceholder.h" |
| 17 #include "webrtc/sdk/android/src/jni/videoencoderwrapper.h" |
| 18 |
| 19 namespace webrtc { |
| 20 namespace jni { |
| 21 |
| 22 VideoEncoderFactoryWrapper::VideoEncoderFactoryWrapper(JNIEnv* jni, |
| 23 jobject encoder_factory) |
| 24 : video_codec_info_class_(jni, FindClass(jni, "org/webrtc/VideoCodecInfo")), |
| 25 hash_map_class_(jni, jni->FindClass("java/util/HashMap")), |
| 26 encoder_factory_(jni, encoder_factory) { |
| 27 jclass encoder_factory_class = jni->GetObjectClass(*encoder_factory_); |
| 28 create_encoder_method_ = jni->GetMethodID( |
| 29 encoder_factory_class, "createEncoder", |
| 30 "(Lorg/webrtc/VideoCodecInfo;)Lorg/webrtc/VideoEncoder;"); |
| 31 get_supported_codecs_method_ = |
| 32 jni->GetMethodID(encoder_factory_class, "getSupportedCodecs", |
| 33 "()[Lorg/webrtc/VideoCodecInfo;"); |
| 34 |
| 35 video_codec_info_constructor_ = |
| 36 jni->GetMethodID(*video_codec_info_class_, "<init>", |
| 37 "(ILjava/lang/String;Ljava/util/Map;)V"); |
| 38 payload_field_ = jni->GetFieldID(*video_codec_info_class_, "payload", "I"); |
| 39 name_field_ = |
| 40 jni->GetFieldID(*video_codec_info_class_, "name", "Ljava/lang/String;"); |
| 41 params_field_ = |
| 42 jni->GetFieldID(*video_codec_info_class_, "params", "Ljava/util/Map;"); |
| 43 |
| 44 hash_map_constructor_ = jni->GetMethodID(*hash_map_class_, "<init>", "()V"); |
| 45 put_method_ = jni->GetMethodID( |
| 46 *hash_map_class_, "put", |
| 47 "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;"); |
| 48 |
| 49 supported_codecs_ = GetSupportedCodecs(jni); |
| 50 } |
| 51 |
| 52 VideoEncoder* VideoEncoderFactoryWrapper::CreateVideoEncoder( |
| 53 const cricket::VideoCodec& codec) { |
| 54 JNIEnv* jni = AttachCurrentThreadIfNeeded(); |
| 55 ScopedLocalRefFrame local_ref_frame(jni); |
| 56 jobject j_codec_info = ToJavaCodecInfo(jni, codec); |
| 57 jobject encoder = jni->CallObjectMethod(*encoder_factory_, |
| 58 create_encoder_method_, j_codec_info); |
| 59 return encoder != nullptr ? new VideoEncoderWrapper(jni, encoder) : nullptr; |
| 60 } |
| 61 |
| 62 jobject VideoEncoderFactoryWrapper::ToJavaCodecInfo( |
| 63 JNIEnv* jni, |
| 64 const cricket::VideoCodec& codec) { |
| 65 jobject j_params = jni->NewObject(*hash_map_class_, hash_map_constructor_); |
| 66 for (auto const& param : codec.params) { |
| 67 jni->CallObjectMethod(j_params, put_method_, |
| 68 JavaStringFromStdString(jni, param.first), |
| 69 JavaStringFromStdString(jni, param.second)); |
| 70 } |
| 71 return jni->NewObject(*video_codec_info_class_, video_codec_info_constructor_, |
| 72 codec.id, JavaStringFromStdString(jni, codec.name), |
| 73 j_params); |
| 74 } |
| 75 |
| 76 std::vector<cricket::VideoCodec> VideoEncoderFactoryWrapper::GetSupportedCodecs( |
| 77 JNIEnv* jni) const { |
| 78 const jobjectArray j_supported_codecs = static_cast<jobjectArray>( |
| 79 jni->CallObjectMethod(*encoder_factory_, get_supported_codecs_method_)); |
| 80 const jsize supported_codecs_count = jni->GetArrayLength(j_supported_codecs); |
| 81 |
| 82 std::vector<cricket::VideoCodec> supported_codecs; |
| 83 supported_codecs.resize(supported_codecs_count); |
| 84 for (jsize i = 0; i < supported_codecs_count; i++) { |
| 85 jobject j_supported_codec = |
| 86 jni->GetObjectArrayElement(j_supported_codecs, i); |
| 87 int payload = jni->GetIntField(j_supported_codec, payload_field_); |
| 88 jobject j_params = jni->GetObjectField(j_supported_codec, params_field_); |
| 89 jstring j_name = static_cast<jstring>( |
| 90 jni->GetObjectField(j_supported_codec, name_field_)); |
| 91 supported_codecs[i] = |
| 92 cricket::VideoCodec(payload, JavaToStdString(jni, j_name)); |
| 93 supported_codecs[i].params = JavaToStdMapStrings(jni, j_params); |
| 94 } |
| 95 return supported_codecs; |
| 96 } |
| 97 |
| 98 void VideoEncoderFactoryWrapper::DestroyVideoEncoder(VideoEncoder* encoder) { |
| 99 delete encoder; |
| 100 } |
| 101 |
| 102 } // namespace jni |
| 103 } // namespace webrtc |
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