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H.264 video codec support using OpenH264 (http://www.openh264.org/) for encoding and FFmpeg (https://www.ffmpeg.org/) for decoding.

Browse Source 
It works on all platforms except Android and iOS (FFmpeg limitation).

Implemented behind compile time flags, off by default.
The plan is to have it enabled in Chrome (see bug), but not in Chromium/webrtc by default.

Flags to turn it on:
- rtc_use_h264 = true
- ffmpeg_branding = "Chrome" (or other brand that includes H.264 decoder)

Tests using H264:
- video_loopback --codec=H264
- screenshare_loopback --codec=H264
- video_engine_tests (EndToEndTest.SendsAndReceivesH264)

NOTRY=True
BUG=500605, 468365
BUG=https://bugs.chromium.org/p/webrtc/issues/detail?id=5424

Review URL: https://codereview.webrtc.org/1306813009

Cr-Commit-Position: refs/heads/master@{#11390}
This commit is contained in:
hbos
2016-01-27 01:36:03 -08:00
committed by Commit bot
parent fab0a2886d
commit bab934bffe
24 changed files with 1053 additions and 32 deletions
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31
webrtc/modules/video_coding/codecs/h264/h264.cc
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@ -11,12 +11,17 @@
#include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
#if defined(WEBRTC_THIRD_PARTY_H264)
#include "webrtc/modules/video_coding/codecs/h264/h264_encoder_impl.h"
#include "webrtc/modules/video_coding/codecs/h264/h264_decoder_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 {
@ -27,9 +32,15 @@ namespace webrtc {
extern bool IsH264CodecSupportedObjC();
#endif
// If any H.264 codec is supported (iOS HW or OpenH264/FFmpeg).
bool IsH264CodecSupported() {
#if defined(WEBRTC_IOS)
return IsH264CodecSupportedObjC();
if (IsH264CodecSupportedObjC()) {
return true;
}
#endif
#if defined(WEBRTC_THIRD_PARTY_H264)
return true;
#else
return false;
#endif
@ -38,7 +49,14 @@ bool IsH264CodecSupported() {
H264Encoder* H264Encoder::Create() {
RTC_DCHECK(H264Encoder::IsSupported());
#if defined(WEBRTC_IOS) && defined(WEBRTC_VIDEO_TOOLBOX_SUPPORTED)
return new H264VideoToolboxEncoder();
if (IsH264CodecSupportedObjC()) {
LOG(LS_INFO) << "Creating H264VideoToolboxEncoder.";
return new H264VideoToolboxEncoder();
}
#endif
#if defined(WEBRTC_THIRD_PARTY_H264)
LOG(LS_INFO) << "Creating H264EncoderImpl.";
return new H264EncoderImpl();
#else
RTC_NOTREACHED();
return nullptr;
@ -52,7 +70,14 @@ bool H264Encoder::IsSupported() {
H264Decoder* H264Decoder::Create() {
RTC_DCHECK(H264Decoder::IsSupported());
#if defined(WEBRTC_IOS) && defined(WEBRTC_VIDEO_TOOLBOX_SUPPORTED)
return new H264VideoToolboxDecoder();
if (IsH264CodecSupportedObjC()) {
LOG(LS_INFO) << "Creating H264VideoToolboxDecoder.";
return new H264VideoToolboxDecoder();
}
#endif
#if defined(WEBRTC_THIRD_PARTY_H264)
LOG(LS_INFO) << "Creating H264DecoderImpl.";
return new H264DecoderImpl();
#else
RTC_NOTREACHED();
return nullptr;