Update/delete old TODOs

Bug: webrtc:10198
Change-Id: I0341e068d792bc0b143db86e675988f4cd07ff2e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/267822
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37454}

modules/video_coding/codecs/h264/h264_encoder_impl.cc

@@ -110,7 +110,6 @@ static void RtpFragmentize(EncodedImage* encoded_image, SFrameBSInfo* info) {
       required_capacity += layerInfo.pNalLengthInByte[nal];
     }
   }
-  // TODO(nisse): Use a cache or buffer pool to avoid allocation?
   auto buffer = EncodedImageBuffer::Create(required_capacity);
   encoded_image->SetEncodedData(buffer);
 

modules/video_coding/codecs/multiplex/multiplex_encoded_image_packer.cc

@@ -116,7 +116,7 @@ MultiplexImageComponentHeader UnpackFrameHeader(const uint8_t* buffer) {
       ByteReader<uint32_t>::ReadBigEndian(buffer + offset);
   offset += sizeof(uint32_t);
 
-  // TODO(nisse): This makes the wire format depend on the numeric values of the
+  // This makes the wire format depend on the numeric values of the
   // VideoCodecType and VideoFrameType enum constants.
   frame_header.codec_type = static_cast<VideoCodecType>(
       ByteReader<uint8_t>::ReadBigEndian(buffer + offset));

modules/video_coding/codecs/vp8/libvpx_vp8_encoder.cc

@@ -1125,8 +1125,6 @@ int LibvpxVp8Encoder::GetEncodedPartitions(const VideoFrame& input_image,
       }
     }
 
-    // TODO(nisse): Introduce some buffer cache or buffer pool, to reduce
-    // allocations and/or copy operations.
     auto buffer = EncodedImageBuffer::Create(encoded_size);
 
     iter = NULL;

modules/video_coding/codecs/vp9/libvpx_vp9_encoder.cc

@@ -1706,8 +1706,6 @@ void LibvpxVp9Encoder::GetEncodedLayerFrame(const vpx_codec_cx_pkt* pkt) {
     DeliverBufferedFrame(end_of_picture);
   }
 
-  // TODO(nisse): Introduce some buffer cache or buffer pool, to reduce
-  // allocations and/or copy operations.
   encoded_image_.SetEncodedData(EncodedImageBuffer::Create(
       static_cast<const uint8_t*>(pkt->data.frame.buf), pkt->data.frame.sz));
 

modules/video_coding/packet.cc

@@ -58,7 +58,6 @@ VCMPacket::VCMPacket(const uint8_t* ptr,
     completeNALU = kNaluIncomplete;
   }
 
-  // TODO(nisse): Delete?
   // Playout decisions are made entirely based on first packet in a frame.
   if (!is_first_packet_in_frame()) {
     video_header.playout_delay = {-1, -1};

modules/video_coding/session_info.h

@@ -49,7 +49,6 @@ class VCMSessionInfo {
   // Returns the number of bytes deleted from the session.
   size_t MakeDecodable();
 
-  // TODO(nisse): Used by tests only.
   size_t SessionLength() const;
   int NumPackets() const;
   bool HaveFirstPacket() const;

modules/video_coding/utility/quality_scaler.cc

@@ -31,7 +31,6 @@
 namespace webrtc {
 
 namespace {
-// TODO(nisse): Delete, delegate to encoders.
 // Threshold constant used until first downscale (to permit fast rampup).
 static const int kMeasureMs = 2000;
 static const float kSamplePeriodScaleFactor = 2.5;