blob: 1c0fc705ae4d55b05dd61bf3e195032af86771c6 [file] [log] [blame]
/*
* Copyright (c) 2015 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/modules/video_coding/codecs/h264/include/h264.h"
#if defined(WEBRTC_USE_H264)
#include "webrtc/modules/video_coding/codecs/h264/h264_decoder_impl.h"
#include "webrtc/modules/video_coding/codecs/h264/h264_encoder_impl.h"
#endif
#if defined(WEBRTC_IOS)
#include "webrtc/modules/video_coding/codecs/h264/h264_video_toolbox_decoder.h"
#include "webrtc/modules/video_coding/codecs/h264/h264_video_toolbox_encoder.h"
#endif
#include "webrtc/base/checks.h"
#include "webrtc/base/logging.h"
namespace webrtc {
namespace {
#if defined(WEBRTC_USE_H264)
bool g_rtc_use_h264 = true;
#endif
} // namespace
void DisableRtcUseH264() {
#if defined(WEBRTC_USE_H264)
g_rtc_use_h264 = false;
#endif
}
// We need this file to be C++ only so it will compile properly for all
// platforms. In order to write ObjC specific implementations we use private
// externs. This function is defined in h264.mm.
#if defined(WEBRTC_IOS)
extern bool IsH264CodecSupportedObjC();
#endif
// If any H.264 codec is supported (iOS HW or OpenH264/FFmpeg).
bool IsH264CodecSupported() {
#if defined(WEBRTC_IOS) && defined(WEBRTC_VIDEO_TOOLBOX_SUPPORTED)
if (IsH264CodecSupportedObjC()) {
return true;
}
#endif
#if defined(WEBRTC_USE_H264)
return g_rtc_use_h264;
#else
return false;
#endif
}
H264Encoder* H264Encoder::Create() {
RTC_DCHECK(H264Encoder::IsSupported());
#if defined(WEBRTC_IOS) && defined(WEBRTC_VIDEO_TOOLBOX_SUPPORTED)
if (IsH264CodecSupportedObjC()) {
LOG(LS_INFO) << "Creating H264VideoToolboxEncoder.";
return new H264VideoToolboxEncoder();
}
#endif
#if defined(WEBRTC_USE_H264)
RTC_CHECK(g_rtc_use_h264);
LOG(LS_INFO) << "Creating H264EncoderImpl.";
return new H264EncoderImpl();
#else
RTC_NOTREACHED();
return nullptr;
#endif
}
bool H264Encoder::IsSupported() {
return IsH264CodecSupported();
}
H264Decoder* H264Decoder::Create() {
RTC_DCHECK(H264Decoder::IsSupported());
#if defined(WEBRTC_IOS) && defined(WEBRTC_VIDEO_TOOLBOX_SUPPORTED)
if (IsH264CodecSupportedObjC()) {
LOG(LS_INFO) << "Creating H264VideoToolboxDecoder.";
return new H264VideoToolboxDecoder();
}
#endif
#if defined(WEBRTC_USE_H264)
RTC_CHECK(g_rtc_use_h264);
LOG(LS_INFO) << "Creating H264DecoderImpl.";
return new H264DecoderImpl();
#else
RTC_NOTREACHED();
return nullptr;
#endif
}
bool H264Decoder::IsSupported() {
return IsH264CodecSupported();
}
} // namespace webrtc