Commit Graph

11 Commits

Author SHA1 Message Date
9eeb6240c9 Build dynamic iOS SDK.
- Places most ObjC code into webrtc/sdk/objc instead.
- New gyp targets to build, strip and export symbols for dylib.
- Removes old script used to generate dylib.

BUG=

Review URL: https://codereview.webrtc.org/1903663002

Cr-Commit-Position: refs/heads/master@{#12524}
2016-04-27 08:54:27 +00:00
5ed5ed953d Fix VideoToolbox backgrounding issues.
When the iOS application is not in the foreground, the hardware encoder and
decoder become invalidated. There doesn't seem to be a way to query their state
so we don't know they're invalid until we get an error code after an
encode/decode request. To solve the issue, we just don't encode/decode when the
app is not active, and reinitialize the encoder/decoder when the app is active
again.

Also fixes a leak in the decoder.

BUG=webrtc:4081

Review URL: https://codereview.webrtc.org/1732953003

Cr-Commit-Position: refs/heads/master@{#11916}
2016-03-08 18:51:58 +00:00
28c99bc44a iOS: Include legacy objc API in all.gyp + fix H264 libyuv dependency
The legacy objc API is not included in the GYP generation if include_tests=0.
This causes problems downstream in some cases, so it's changed in this CL.

The libyuv dependency needs to be possible to disable using the build_libyuv
GYP variable.

NOTRY=True

Review URL: https://codereview.webrtc.org/1705733002

Cr-Commit-Position: refs/heads/master@{#11652}
2016-02-17 13:38:35 +00:00
f6b5509229 Fix GYP and GN references that are invalid in Chromium builds.
There were a couple of GN and GYP references that were incorrect in Chromium builds:
- GN references between WebRTC targets must be using relative paths, not absolute.
- GYP references between WebRTC targets must be using the <(webrtc_root)v variable
  in order to be expanded to the correct path in a Chromium build.

NOTRY=True
TBR=hjon@webrtc.org, hbos@webrtc.org

Review URL: https://codereview.webrtc.org/1681493002

Cr-Commit-Position: refs/heads/master@{#11521}
2016-02-08 07:04:33 +00:00
900f97534b H264: Improve FFmpeg decoder performance by using I420BufferPool.
Had to update I420BufferPool to allow zero-initializing buffers.

BUG=chromium:500605, chromium:468365, webrtc:5428

Review URL: https://codereview.webrtc.org/1645543003

Cr-Commit-Position: refs/heads/master@{#11505}
2016-02-05 16:08:39 +00:00
9dc5928eb2 Ability to disable the effects of |rtc_use_h264| with DisableRtcUseH264.
Renamed the WEBRTC_THIRD_PARTY_H264 macro to WEBRTC_USE_H264 to match flag name.

The idea is to be able to turn off H264 from chromium with this function because...
1) The Chromium trybots will soon use this flag, we want to temporarily disable H264 from chromium even if flag is set in case something is broken. That way when we are ready to flip the switch the trybots will run our test code then and not after it is already enabled.
2) If feature is launched and we discover major problems we can easily disable H264 and merge with beta/stable.
3) Or, if feature is behind a *runtime* flag, this is how we would control if it is used or not.

The idea is to call DisableRtcUseH264 in chromium's PeerConnectionDependencyFactory.

BUG=chromium:500605, chromium:468365
NOTRY=True
NOPRESUBMIT=True

Review URL: https://codereview.webrtc.org/1657273002

Cr-Commit-Position: refs/heads/master@{#11474}
2016-02-03 13:09:40 +00:00
c5a39c2591 H264: Thread-safe InitializeFFmpeg. Flag to control if InitializeFFmpeg should be called.
New flag: rtc_initialize_ffmpeg, default value = !build_with_chromium.

In WebRTC standalone we initialize FFmpeg by default, in Chromium we don't by default.
Chromium is an external project that also use FFmpeg. If both projects do FFmpeg initialization code things will break. The flag makes it possible for other external projects than chromium to decide whether or not WebRTC should initialize FFmpeg.

BUG=chromium:500605, chromium:468365, webrtc:5427

Review URL: https://codereview.webrtc.org/1639273002

Cr-Commit-Position: refs/heads/master@{#11456}
2016-02-02 10:30:57 +00:00
bab934bffe H.264 video codec support using OpenH264 (http://www.openh264.org/) for encoding and FFmpeg (https://www.ffmpeg.org/) for decoding.
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}
2016-01-27 09:36:07 +00:00
d664836efa Added EncodedImage::GetBufferPaddingBytes.
The FFmpeg video decoder requires up to 8 additional bytes to be allocated for its encoded image buffer input, due to optimized byte readers over-reading on some platforms.
We plan to use FFmpeg for a soon-to-land H.264 enc/dec.

This CL adds support for padding encoded image buffers based on codec type, and makes sure calls to VCMEncodedFrame::VerifyAndAllocate use the padding.

All padding constants are 0 but making H.264 pad with 8 bytes will be a one-line change.

Also, added -framework CoreFoundation to webrtc_h264_video_toolbox which was missing.

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

Review URL: https://codereview.webrtc.org/1602523004

Cr-Commit-Position: refs/heads/master@{#11337}
2016-01-21 13:43:18 +00:00
902c03e724 rtc_use_h264 flag (replacing use_third_party_h264 flag) for building OpenH264/FFmpeg, false by default but can be overridden in supplement.gypi and build_overrides/webrtc.gni.
BUG=468365
NOTRY=True

Review URL: https://codereview.webrtc.org/1601813005

Cr-Commit-Position: refs/heads/master@{#11333}
2016-01-21 11:34:47 +00:00
71f6f4405c iOS HW H264 support.
First step towards supporting H264 on iOS. More tuning/experimentation
required in future CLs. Tested using AppRTCDemo on iPhone6 + iPad Mini.
Future work to get it working on OS/X, simulator (renders black screen
currently) and with the Android AppRTCDemo. Currently protected with a
compile time guard.

BUG=4081
R=andrew@webrtc.org, haysc@webrtc.org, holmer@google.com, jiayl@webrtc.org, kjellander@webrtc.org, pbos@webrtc.org, phoglund@webrtc.org, stefan@webrtc.org

Review URL: https://codereview.webrtc.org/1187573004.

Cr-Commit-Position: refs/heads/master@{#9515}
2015-06-29 21:35:08 +00:00