blob: 7a1c099f19f86554490bdf8be30b3cb1ac805259 [file] [log] [blame]
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include "webrtc/media/engine/internaldecoderfactory.h"
#include <utility>
#include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
#include "webrtc/modules/video_coding/codecs/vp8/include/vp8.h"
#include "webrtc/modules/video_coding/codecs/vp9/include/vp9.h"
#include "webrtc/rtc_base/logging.h"
namespace cricket {
namespace {
// Video decoder class to be used for unknown codecs. Doesn't support decoding
// but logs messages to LS_ERROR.
class NullVideoDecoder : public webrtc::VideoDecoder {
int32_t InitDecode(const webrtc::VideoCodec* codec_settings,
int32_t number_of_cores) override {
LOG(LS_ERROR) << "Can't initialize NullVideoDecoder.";
int32_t Decode(const webrtc::EncodedImage& input_image,
bool missing_frames,
const webrtc::RTPFragmentationHeader* fragmentation,
const webrtc::CodecSpecificInfo* codec_specific_info,
int64_t render_time_ms) override {
LOG(LS_ERROR) << "The NullVideoDecoder doesn't support decoding.";
int32_t RegisterDecodeCompleteCallback(
webrtc::DecodedImageCallback* callback) override {
<< "Can't register decode complete callback on NullVideoDecoder.";
int32_t Release() override { return WEBRTC_VIDEO_CODEC_OK; }
const char* ImplementationName() const override { return "NullVideoDecoder"; }
} // anonymous namespace
InternalDecoderFactory::InternalDecoderFactory() {}
InternalDecoderFactory::~InternalDecoderFactory() {}
// WebRtcVideoDecoderFactory implementation.
webrtc::VideoDecoder* InternalDecoderFactory::CreateVideoDecoder(
webrtc::VideoCodecType type) {
switch (type) {
case webrtc::kVideoCodecH264:
if (webrtc::H264Decoder::IsSupported())
return webrtc::H264Decoder::Create();
// This could happen in a software-fallback for a codec type only
// supported externally (e.g. H.264 on iOS or Android) or in current usage
// in WebRtcVideoEngine if the external decoder fails to be created.
LOG(LS_ERROR) << "Unable to create an H.264 decoder fallback. "
<< "Decoding of this stream will be broken.";
return new NullVideoDecoder();
case webrtc::kVideoCodecVP8:
return webrtc::VP8Decoder::Create();
case webrtc::kVideoCodecVP9:
return webrtc::VP9Decoder::Create();
LOG(LS_ERROR) << "Creating NullVideoDecoder for unsupported codec.";
return new NullVideoDecoder();
void InternalDecoderFactory::DestroyVideoDecoder(
webrtc::VideoDecoder* decoder) {
delete decoder;
} // namespace cricket