5 Commits

Author SHA1 Message Date
Peter Boström
8c266e6baf H264 bitstream parser.
Parsing the encoded bitstream is required for doing downscaling
decisions based on average encoded QP to improve perceived quality.

BUG=webrtc:4968
R=noahric@chromium.org, stefan@webrtc.org
TBR=pthatcher@webrtc.org

Review URL: https://codereview.webrtc.org/1314473008 .

Cr-Commit-Position: refs/heads/master@{#10051}
2015-09-24 13:07:04 +00:00
henrikg
3c089d751e Add RTC_ prefix to contructormagic macros.
We must remove dependency on Chromium, i.e. we can't use Chromium's base/logging.h. That means we need to define these macros in WebRTC also when doing Chromium builds. And this causes redefinition.

* DISALLOW_ASSIGN -> RTC_DISALLOW_ASSIGN
* DISALLOW_COPY_AND_ASSIGN -> RTC_DISALLOW_COPY_AND_ASSIGN
* DISALLOW_IMPLICIT_CONSTRUCTORS -> RTC_DISALLOW_IMPLICIT_CONSTRUCTORS

Related CL: https://codereview.webrtc.org/1335923002/

BUG=chromium:468375
NOTRY=true

Review URL: https://codereview.webrtc.org/1345433002

Cr-Commit-Position: refs/heads/master@{#9953}
2015-09-16 12:37:52 +00:00
Noah Richards
9b9f1c4562 Remove basictypes.h dependency from bitbuffer.
This reduces the types exported in webrtc proper, which can cause other
issues (since it doesn't generally use webrtc/base/basictypes.h).
basictypes.h integral types (e.g. uint8) have been replaced by the
stdint counterparts (e.g. uint8_t), which matches general webrtc style.

The include for common.h has been replaced by constructormagic.h, which
was the only part used.

BUG=
R=pthatcher@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/50859004

Cr-Commit-Position: refs/heads/master@{#9181}
2015-05-12 19:20:44 +00:00
Noah Richards
86153c26a0 Added a BitBufferWriter subclass that contains methods for writing bit and byte-sized data, along with exponential golomb encoded data.
This pattern (read-only base, writable subclass) was picked to maintain a *Buffer option that doesn't copy the source bits when parsing. ByteBuffer and Buffer both copy. I'm open to discussion on what the type relationship would be, though :)

Tests have been added to ensure the symmetric nature of read/write operations.

BUG=
R=bcornell@google.com, pthatcher@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/45259005

Cr-Commit-Position: refs/heads/master@{#9107}
2015-04-28 22:13:50 +00:00
Noah Richards
bbf7c864ad Add a new BitBuffer class to webrtc base.
Provides a read-only interface for reading byte and bit-sized data from
an underlying buffer in network/big-endian order. Also provides a method
for reading exponential golomb encoded values, which will be useful in
H.264 packet parsing (separate CL).

BUG=
R=pthatcher@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/49719004

Cr-Commit-Position: refs/heads/master@{#9046}
2015-04-21 23:29:53 +00:00