Reland "Add stereo codec header and pass it through RTP"
This is a reland of 20f2133d5dbd1591b89425b24db3b1e09fbcf0b1
Original change's description:
> Add stereo codec header and pass it through RTP
>
> - Defines CodecSpecificInfoStereo that carries stereo specific header info from
> encoded image.
> - Defines RTPVideoHeaderStereo that carries the above info to packetizer,
> see module_common_types.h.
> - Adds an RTPPacketizer and RTPDepacketizer that supports passing specific stereo
> header.
> - Uses new data containers in StereoAdapter classes.
>
> This CL is the step 3 for adding alpha channel support over the wire in webrtc.
> See https://webrtc-review.googlesource.com/c/src/+/7800 for the experimental
> CL that gives an idea about how it will come together.
> Design Doc: https://goo.gl/sFeSUT
>
> Bug: webrtc:7671
> Change-Id: Ia932568fdd7065ba104afd2bc0ecf25a765748ab
> Reviewed-on: https://webrtc-review.googlesource.com/22900
> Reviewed-by: Emircan Uysaler <emircan@webrtc.org>
> Reviewed-by: Erik Språng <sprang@webrtc.org>
> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
> Reviewed-by: Niklas Enbom <niklas.enbom@webrtc.org>
> Commit-Queue: Emircan Uysaler <emircan@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#20920}
TBR=danilchap@webrtc.org, sprang@webrtc.org, niklas.enbom@webrtc.org
Bug: webrtc:7671
Change-Id: If8f0c7e6e3a2a704f19161f0e8bf1880906e7fe0
Reviewed-on: https://webrtc-review.googlesource.com/27160
Reviewed-by: Emircan Uysaler <emircan@webrtc.org>
Commit-Queue: Emircan Uysaler <emircan@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20946}diff --git a/modules/video_coding/frame_object.cc b/modules/video_coding/frame_object.cc
index 6a31cfd..6eb28de 100644
--- a/modules/video_coding/frame_object.cc
+++ b/modules/video_coding/frame_object.cc
@@ -43,9 +43,14 @@
frame_type_ = first_packet->frameType;
codec_type_ = first_packet->codec;
+ // Stereo codec appends CopyCodecSpecific to last packet to avoid copy.
+ VCMPacket* packet_with_codec_specific =
+ codec_type_ == kVideoCodecStereo ? packet_buffer_->GetPacket(last_seq_num)
+ : first_packet;
+
// TODO(philipel): Remove when encoded image is replaced by FrameObject.
// VCMEncodedFrame members
- CopyCodecSpecific(&first_packet->video_header);
+ CopyCodecSpecific(&packet_with_codec_specific->video_header);
_completeFrame = true;
_payloadType = first_packet->payloadType;
_timeStamp = first_packet->timestamp;