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Added parsing of width and height from VP8 header

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Review URL: http://webrtc-codereview.appspot.com/241012

git-svn-id: http://webrtc.googlecode.com/svn/trunk@875 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
pwestin@webrtc.org 2011-11-02 23:14:58 +00:00
parent 679cb07980
commit 075e91fa27
4 changed files with 46 additions and 7 deletions
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4
src/modules/interface/module_common_types.h
View File

@ -58,6 +58,8 @@ struct RTPVideoHeaderVP8
temporalIdx = kNoTemporalIdx;
partitionId = 0;
beginningOfPartition = false;
frameWidth = 0;
frameHeight = 0;
}
bool nonReference; // Frame is discardable.
@ -69,6 +71,8 @@ struct RTPVideoHeaderVP8
int partitionId; // VP8 partition ID
bool beginningOfPartition; // True if this packet is the first
// in a VP8 partition. Otherwise false
int frameWidth; // Exists for key frames.
int frameHeight; // Exists for key frames.
};
union RTPVideoTypeHeader
{

4
src/modules/rtp_rtcp/source/rtp_receiver_video.cc
View File

@ -647,6 +647,10 @@ RTPReceiverVideo::ReceiveVp8Codec(WebRtcRTPHeader* rtpHeader,
kNoTl0PicIdx;
toHeader->temporalIdx = fromHeader->hasTID ? fromHeader->tID :
kNoTemporalIdx;
toHeader->frameWidth = fromHeader->frameWidth;
toHeader->frameHeight = fromHeader->frameHeight;
toHeader->partitionId = fromHeader->partitionID;
toHeader->beginningOfPartition = fromHeader->beginningOfPartition;

33
src/modules/rtp_rtcp/source/rtp_utility.cc
View File

@ -385,6 +385,8 @@ ModuleRTPUtility::RTPPayload::SetType(RtpVideoCodecTypes videoType)
info.VP8.pictureID = -1;
info.VP8.tl0PicIdx = -1;
info.VP8.tID = -1;
info.VP8.frameWidth = 0;
info.VP8.frameHeight = 0;
break;
}
default:
@ -868,15 +870,38 @@ ModuleRTPUtility::RTPPayloadParser::ParseVP8(RTPPayload& parsedPacket) const
{
parsedPacket.frameType = kPFrame;
}
if (0 != ParseVP8FrameSize(parsedPacket, dataPtr, dataLength))
{
return false;
}
parsedPacket.info.VP8.data = dataPtr;
parsedPacket.info.VP8.dataLength = dataLength;
return true;
}
int
ModuleRTPUtility::RTPPayloadParser::ParseVP8Extension(
int ModuleRTPUtility::RTPPayloadParser::ParseVP8FrameSize(
RTPPayload &parsedPacket,
const WebRtc_UWord8 *dataPtr,
int dataLength) const
{
if (parsedPacket.frameType != kIFrame)
{
// Included in payload header for I-frames.
return 0;
}
if (dataLength < 10)
{
// For an I-frame we should always have the uncompressed VP8 header
// in the beginning of the partition.
return -1;
}
RTPPayloadVP8 *vp8 = &parsedPacket.info.VP8;
vp8->frameWidth = ((dataPtr[7] << 8) + dataPtr[6]) & 0x3FFF;
vp8->frameHeight = ((dataPtr[9] << 8) + dataPtr[8]) & 0x3FFF;
return 0;
}
int ModuleRTPUtility::RTPPayloadParser::ParseVP8Extension(
RTPPayloadVP8 *vp8,
const WebRtc_UWord8 *dataPtr,
int dataLength) const

12
src/modules/rtp_rtcp/source/rtp_utility.h
View File

@ -42,7 +42,7 @@ namespace ModuleRTPUtility
struct VideoPayload
{
RtpVideoCodecTypes videoCodecType;
WebRtc_UWord32 maxRate;
WebRtc_UWord32 maxRate;
};
union PayloadUnion
{
@ -51,7 +51,7 @@ namespace ModuleRTPUtility
};
struct Payload
{
WebRtc_Word8 name[RTP_PAYLOAD_NAME_SIZE];
WebRtc_Word8 name[RTP_PAYLOAD_NAME_SIZE];
bool audio;
PayloadUnion typeSpecific;
};
@ -148,8 +148,10 @@ namespace ModuleRTPUtility
int pictureID;
int tl0PicIdx;
int tID;
int frameWidth;
int frameHeight;
const WebRtc_UWord8* data;
const WebRtc_UWord8* data;
WebRtc_UWord16 dataLength;
};
@ -211,6 +213,10 @@ namespace ModuleRTPUtility
int *dataLength,
int *parsedBytes) const;
int ParseVP8FrameSize(RTPPayload& parsedPacket,
const WebRtc_UWord8 *dataPtr,
int dataLength) const;
// H.263
bool H263PictureStartCode(const WebRtc_UWord8* data,
const bool skipFirst2bytes = false) const;