Fix invalid memory access in ScalerFastBoxSampling (#513 )

[src-px]->[dst-px] of 4x1px to 2x1px scaling was 0->0, 1->1, 2->1, 3->2(out of bounds) Fix it to be 0->0, 1->0, 2->1, 3->1
Cache local brew taps on self-hosted darwin runner (#514 )
2025-09-27 04:46:10 +08:00 · 2023-07-05 12:01:40 +09:00 · 2023-07-05 12:01:26 +09:00 · 2023-07-05 11:19:55 +09:00 · 2023-07-05 10:19:20 +09:00 · 2023-07-05 10:18:08 +09:00
41 changed files with 1135 additions and 245 deletions
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -21,7 +21,7 @@ jobs:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Setup Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
        with:
          go-version: ${{ matrix.go }}
      - name: Install dependencies
@@ -52,17 +52,30 @@ jobs:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Setup Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
        with:
          go-version: ${{ matrix.go }}
+
+      # Set up local brew only on self-hosted darwin
      - name: Checkout Homebrew
        if: matrix.runs-on != 'macos-latest'
        uses: actions/checkout@v3
        with:
          repository: Homebrew/brew
          path: homebrew
+      - name: Local brew cache key
+        if: matrix.runs-on != 'macos-latest'
+        id: brew-cache-key
+        run: echo "key=$(date +'%Y-%U')" | tee ${GITHUB_OUTPUT} # weekly update cache
+      - name: Cache local brew taps
+        if: matrix.runs-on != 'macos-latest'
+        uses: actions/cache@v3
+        with:
+          path: homebrew/Library/Taps
+          key: ${{ runner.os }}-brew-taps-${{ steps.brew-cache-key.outputs.key }}
+          restore-keys: ${{ runner.os }}-brew-taps-
      - name: Set up brew to install deps under temporary dir
-        if: matrix.runs-on != 'macos-latest' # set up local brew only on self-hosted
+        if: matrix.runs-on != 'macos-latest'
        run: |
          dir="${GITHUB_WORKSPACE}/homebrew"
          cd "${dir}"
@@ -78,6 +91,7 @@ jobs:
          echo "Brew update" >&2
          brew update --force --quiet
          chmod -R go-w "$(brew --prefix)/share/zsh"
+
      - name: Install dependencies
        run: |
          which brew
@@ -95,7 +109,7 @@ jobs:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Setup Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
        with:
          go-version: '1.19'
      - name: Installing go-licenses
--- a/README.md
+++ b/README.md
@@ -6,8 +6,8 @@
 <h4 align="center">Go implementation of the <a href="https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices">MediaDevices</a> API</h4>
 <p align="center">
  <a href="https://pion.ly/slack"><img src="https://img.shields.io/badge/join-us%20on%20slack-gray.svg?longCache=true&logo=slack&colorB=brightgreen" alt="Slack Widget"></a>
-  <a href="https://github.com/pion/mediadevices/actions"><img src="https://github.com/pion/mediadevices/workflows/CI/badge.svg?branch=master" alt="Build status"></a> 
-  <a href="https://pkg.go.dev/github.com/pion/mediadevices"><img src="https://godoc.org/github.com/pion/mediadevices?status.svg" alt="GoDoc"></a>
+  <img alt="GitHub Workflow Status" src="https://img.shields.io/github/actions/workflow/status/pion/mediadevices/test.yaml">
+  <a href="https://pkg.go.dev/github.com/pion/mediadevices"><img src="https://pkg.go.dev/badge/github.com/pion/mediadevices.svg" alt="Go Reference"></a>
  <a href="https://codecov.io/gh/pion/mediadevices"><img src="https://codecov.io/gh/pion/mediadevices/branch/master/graph/badge.svg" alt="Coverage Status"></a>
  <a href="LICENSE"><img src="https://img.shields.io/badge/License-MIT-yellow.svg" alt="License: MIT"></a>
 </p>
@@ -15,11 +15,13 @@

 `mediadevices` provides access to media input devices like cameras, microphones, and screen capture. It can also be used to encode your video/audio stream to various codec selections. `mediadevices` abstracts away the complexities of interacting with things like hardware and codecs allowing you to focus on building appilcations, interacting only with an amazingly simple, easy, and elegant API!

-## Install
+### Install

-`go get -u github.com/pion/mediadevices`
+```bash
+go get -u github.com/pion/mediadevices
+```

-## Usage
+### Usage

 The following snippet shows how to capture a camera stream and store a frame as a jpeg image:

@@ -67,25 +69,21 @@ func main() {
 	output, _ := os.Create("frame.jpg")
 	jpeg.Encode(output, frame, nil)
 }
-
-
 ```

-## More Examples
-
+### More Examples
 * [Webrtc](/examples/webrtc) - Use Webrtc to create a realtime peer-to-peer video call
 * [Face Detection](/examples/facedetection) - Use a machine learning algorithm to detect faces in a camera stream
 * [RTP Stream](examples/rtp) - Capture camera stream, encode it in H264/VP8/VP9, and send it to a RTP server
 * [HTTP Broadcast](/examples/http) - Broadcast camera stream through HTTP with MJPEG
 * [Archive](/examples/archive) - Archive H264 encoded video stream from a camera

-## Available Media Inputs
-
-| Input  | Linux | Mac | Windows |
+### Available Media Inputs
+| Input      | Linux | Mac | Windows |
 | :--------: | :---: | :-: | :-----: |
-|   Camera   |  ✔️   | ✔️  |   ✔️    |
-| Microphone |  ✔️   | ✔️  |   ✔️    |
-|   Screen   |  ✔️   | ✔️  |   ✔️    |
+| Camera     | ✔️     | ✔️   | ✔️       |
+| Microphone | ✔️     | ✔️   | ✔️       |
+| Screen     | ✔️     | ✔️   | ✔️       |

 By default, there's no media input registered. This decision was made to allow you to play only what you need. Therefore, you need to import the associated packages for the media inputs. For example, if you want to use a camera, you need to import the camera package as a side effect:

@@ -96,8 +94,7 @@ import (
 )
 ```

-## Available Codecs
-
+### Available Codecs
 In order to encode your video/audio, `mediadevices` needs to know what codecs that you want to use and their parameters. To do this, you need to import the associated packages for the codecs, and add them to the codec selector that you'll pass to `GetUserMedia`:

 ```go
@@ -130,9 +127,9 @@ Since `mediadevices` doesn't implement the video/audio codecs, it needs to call

 Note: we do not provide recommendations on choosing one codec or another as it is very complex and can be subjective.

-### Video Codecs
+#### Video Codecs

-#### x264
+##### x264
 A free software library and application for encoding video streams into the H.264/MPEG-4 AVC compression format.

 * Package: [github.com/pion/mediadevices/pkg/codec/x264](https://pkg.go.dev/github.com/pion/mediadevices/pkg/codec/x264)
@@ -140,19 +137,19 @@ A free software library and application for encoding video streams into the H.26
  * Mac: `brew install x264`
  * Ubuntu: `apt install libx264-dev`
  
-#### mmal
+##### mmal
 A framework to enable H264 hardware encoding for Raspberry Pi or boards that use VideoCore GPUs.

 * Package: [github.com/pion/mediadevices/pkg/codec/mmal](https://pkg.go.dev/github.com/pion/mediadevices/pkg/codec/mmal)
 * Installation: no installation needed, mmal should come built in Raspberry Pi devices

-#### openh264
+##### openh264
 A codec library which supports H.264 encoding and decoding. It is suitable for use in real time applications.

 * Package: [github.com/pion/mediadevices/pkg/codec/openh264](https://pkg.go.dev/github.com/pion/mediadevices/pkg/codec/openh264)
 * Installation: no installation needed, included as a static binary

-#### vpx
+##### vpx
 A free software video codec library from Google and the Alliance for Open Media that implements VP8/VP9 video coding formats.

 * Package: [github.com/pion/mediadevices/pkg/codec/vpx](https://pkg.go.dev/github.com/pion/mediadevices/pkg/codec/vpx)
@@ -160,7 +157,7 @@ A free software video codec library from Google and the Alliance for Open Media
  * Mac: `brew install libvpx`
  * Ubuntu: `apt install libvpx-dev`
  
-#### vaapi
+##### vaapi
 An open source API that allows applications such as VLC media player or GStreamer to use hardware video acceleration capabilities (currently support VP8/VP9).

 * Package: [github.com/pion/mediadevices/pkg/codec/vaapi](https://pkg.go.dev/github.com/pion/mediadevices/pkg/codec/vaapi)
@@ -168,9 +165,9 @@ An open source API that allows applications such as VLC media player or GStreame
  * Ubuntu: `apt install libva-dev`


-### Audio Codecs
+#### Audio Codecs

-#### opus
+##### opus
 A totally open, royalty-free, highly versatile audio codec.

 * Package: [github.com/pion/mediadevices/pkg/codec/opus](https://pkg.go.dev/github.com/pion/mediadevices/pkg/codec/opus)
@@ -178,16 +175,14 @@ A totally open, royalty-free, highly versatile audio codec.
  * Mac: `brew install opus`
  * Ubuntu: `apt install libopus-dev`

-## Benchmark
-
+### Benchmark
 Result as of Nov 4, 2020 with Go 1.14 on a Raspberry pi 3, `mediadevices` can produce video, encode, send across network, and decode at **720p, 30 fps with < 500 ms latency**.  

 The test was taken by capturing a camera stream, decoding the raw frames, encoding the video stream with mmal, and sending the stream through Webrtc.

-## FAQ
-
-### Failed to find the best driver that fits the constraints
+### FAQ

+#### Failed to find the best driver that fits the constraints
 `mediadevices` provides an automated driver discovery through `GetUserMedia` and `GetDisplayMedia`. The driver discover algorithm works something like:

 1. Open all registered drivers
@@ -198,13 +193,14 @@ So, when `mediadevices` returns `failed to find the best driver that fits the co
 * Driver was not imported as a side effect in your program, e.g. `import _ github.com/pion/mediadevices/pkg/driver/camera`
 * Your constraint is too strict that there's no driver can fullfil your requirements. In this case, you can try to turn up the debug level by specifying the following environment variable: `export PION_LOG_DEBUG=all` to see what was too strict and tune that.
 * Your driver is not supported/implemented. In this case, you can either let us know (file an issue) and wait for the maintainers to implement it. Or, you can implement it yourself and register it through `RegisterDriverAdapter`
+* If trying to use `import _ github.com/pion/mediadevices/pkg/driver/screen` note that you will need to use `GetDisplayMedia` instead of `GetUserMedia` 

-### Failed to find vpx/x264/mmal/opus codecs
-
+#### Failed to find vpx/x264/mmal/opus codecs
 Since `mediadevices` uses cgo to access video/audio codecs, it needs to find these libraries from the system. To accomplish this, [pkg-config](https://www.freedesktop.org/wiki/Software/pkg-config/) is used for library discovery.

 If you see the following error message at compile time:
-```
+
+```bash
 # pkg-config --cflags  -- vpx
 Package vpx was not found in the pkg-config search path.
 Perhaps you should add the directory containing `vpx.pc'
@@ -218,8 +214,10 @@ There are 2 common problems:
 * The required codec library is not installed (vpx in this example). In this case, please refer to the [available codecs](#available-codecs).
 * Pkg-config fails to find the `.pc` files for this codec ([reference](https://people.freedesktop.org/~dbn/pkg-config-guide.html#using)). In this case, you need to find where the codec library's `.pc` is stored, and let pkg-config knows with: `export PKG_CONFIG_PATH=/path/to/directory`.

+### Roadmap
+The library can be used with our WebRTC implementation. Please refer to that [roadmap](https://github.com/pion/webrtc/issues/9) to track our major milestones.

-## Community
+### Community
 Pion has an active community on the [Slack](https://pion.ly/slack).

 Follow the [Pion Twitter](https://twitter.com/_pion) for project updates and important WebRTC news.
@@ -227,11 +225,8 @@ Follow the [Pion Twitter](https://twitter.com/_pion) for project updates and imp
 We are always looking to support **your projects**. Please reach out if you have something to build!
 If you need commercial support or don't want to use public methods you can contact us at [team@pion.ly](mailto:team@pion.ly)

-## Contributing
-Check out the **[contributing wiki](https://github.com/pion/webrtc/wiki/Contributing)** to join the group of amazing people making this project possible:
+### Contributing
+Check out the [contributing wiki](https://github.com/pion/webrtc/wiki/Contributing) to join the group of amazing people making this project possible: [AUTHORS.txt](./AUTHORS.txt)

-* [Lukas Herman](https://github.com/lherman-cs) - _Original Author_
-* [Atsushi Watanabe](https://github.com/at-wat) - _VP8, Screencast, etc._
-
-## License
+### License
 MIT License - see [LICENSE](LICENSE) for full text
--- a/examples/go.mod
+++ b/examples/go.mod
@@ -5,7 +5,7 @@ go 1.14
 require (
 	github.com/esimov/pigo v1.4.6
 	github.com/pion/mediadevices v0.0.0
-	github.com/pion/webrtc/v3 v3.1.50
+	github.com/pion/webrtc/v3 v3.2.11
 )

 replace github.com/pion/mediadevices v0.0.0 => ../
--- a/examples/go.sum
+++ b/examples/go.sum
@@ -1,5 +1,5 @@
-github.com/blackjack/webcam v0.0.0-20220329180758-ba064708e165 h1:QsIbRyO2tn5eSJZ/skuDqSTo0GWI5H4G1AT7Mm2H0Nw=
-github.com/blackjack/webcam v0.0.0-20220329180758-ba064708e165/go.mod h1:G0X+rEqYPWSq0dG8OMf8M446MtKytzpPjgS3HbdOJZ4=
+github.com/blackjack/webcam v0.0.0-20230509180125-87693b3f29dc h1:7cMZ/f4xwkD3FUOcThPAm0uecSP5kSTUU/3RWsrmcww=
+github.com/blackjack/webcam v0.0.0-20230509180125-87693b3f29dc/go.mod h1:G0X+rEqYPWSq0dG8OMf8M446MtKytzpPjgS3HbdOJZ4=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -50,43 +50,43 @@ github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1y
 github.com/onsi/gomega v1.17.0/go.mod h1:HnhC7FXeEQY45zxNK3PPoIUhzk/80Xly9PcubAlGdZY=
 github.com/pion/datachannel v1.5.5 h1:10ef4kwdjije+M9d7Xm9im2Y3O6A6ccQb0zcqZcJew8=
 github.com/pion/datachannel v1.5.5/go.mod h1:iMz+lECmfdCMqFRhXhcA/219B0SQlbpoR2V118yimL0=
-github.com/pion/dtls/v2 v2.1.5 h1:jlh2vtIyUBShchoTDqpCCqiYCyRFJ/lvf/gQ8TALs+c=
-github.com/pion/dtls/v2 v2.1.5/go.mod h1:BqCE7xPZbPSubGasRoDFJeTsyJtdD1FanJYL0JGheqY=
-github.com/pion/ice/v2 v2.2.12 h1:n3M3lUMKQM5IoofhJo73D3qVla+mJN2nVvbSPq32Nig=
-github.com/pion/ice/v2 v2.2.12/go.mod h1:z2KXVFyRkmjetRlaVRgjO9U3ShKwzhlUylvxKfHfd5A=
-github.com/pion/interceptor v0.1.11/go.mod h1:tbtKjZY14awXd7Bq0mmWvgtHB5MDaRN7HV3OZ/uy7s8=
-github.com/pion/interceptor v0.1.12 h1:CslaNriCFUItiXS5o+hh5lpL0t0ytQkFnUcbbCs2Zq8=
-github.com/pion/interceptor v0.1.12/go.mod h1:bDtgAD9dRkBZpWHGKaoKb42FhDHTG2rX8Ii9LRALLVA=
+github.com/pion/dtls/v2 v2.2.7 h1:cSUBsETxepsCSFSxC3mc/aDo14qQLMSL+O6IjG28yV8=
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@@ -94,48 +94,49 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
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 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -151,30 +152,40 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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 golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.5.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
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+golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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--- a/go.mod
+++ b/go.mod
@@ -3,15 +3,16 @@ module github.com/pion/mediadevices
 go 1.13

 require (
-	github.com/blackjack/webcam v0.0.0-20220329180758-ba064708e165
+	github.com/blackjack/webcam v0.0.0-20230509180125-87693b3f29dc
 	github.com/gen2brain/malgo v0.11.10
 	github.com/google/uuid v1.3.0
 	github.com/kbinani/screenshot v0.0.0-20210720154843-7d3a670d8329
-	github.com/pion/interceptor v0.1.12
+	github.com/pion/interceptor v0.1.17
 	github.com/pion/logging v0.2.2
 	github.com/pion/rtcp v1.2.10
 	github.com/pion/rtp v1.7.13
-	github.com/pion/webrtc/v3 v3.1.50
-	golang.org/x/image v0.2.0
+	github.com/pion/webrtc/v3 v3.2.11
+	github.com/stretchr/testify v1.8.4
+	golang.org/x/image v0.8.0
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 )
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/blackjack/webcam v0.0.0-20220329180758-ba064708e165 h1:QsIbRyO2tn5eSJZ/skuDqSTo0GWI5H4G1AT7Mm2H0Nw=
-github.com/blackjack/webcam v0.0.0-20220329180758-ba064708e165/go.mod h1:G0X+rEqYPWSq0dG8OMf8M446MtKytzpPjgS3HbdOJZ4=
+github.com/blackjack/webcam v0.0.0-20230509180125-87693b3f29dc h1:7cMZ/f4xwkD3FUOcThPAm0uecSP5kSTUU/3RWsrmcww=
+github.com/blackjack/webcam v0.0.0-20230509180125-87693b3f29dc/go.mod h1:G0X+rEqYPWSq0dG8OMf8M446MtKytzpPjgS3HbdOJZ4=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -49,43 +49,43 @@ github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1y
 github.com/onsi/gomega v1.17.0/go.mod h1:HnhC7FXeEQY45zxNK3PPoIUhzk/80Xly9PcubAlGdZY=
 github.com/pion/datachannel v1.5.5 h1:10ef4kwdjije+M9d7Xm9im2Y3O6A6ccQb0zcqZcJew8=
 github.com/pion/datachannel v1.5.5/go.mod h1:iMz+lECmfdCMqFRhXhcA/219B0SQlbpoR2V118yimL0=
-github.com/pion/dtls/v2 v2.1.5 h1:jlh2vtIyUBShchoTDqpCCqiYCyRFJ/lvf/gQ8TALs+c=
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-github.com/pion/ice/v2 v2.2.12 h1:n3M3lUMKQM5IoofhJo73D3qVla+mJN2nVvbSPq32Nig=
-github.com/pion/ice/v2 v2.2.12/go.mod h1:z2KXVFyRkmjetRlaVRgjO9U3ShKwzhlUylvxKfHfd5A=
-github.com/pion/interceptor v0.1.11/go.mod h1:tbtKjZY14awXd7Bq0mmWvgtHB5MDaRN7HV3OZ/uy7s8=
-github.com/pion/interceptor v0.1.12 h1:CslaNriCFUItiXS5o+hh5lpL0t0ytQkFnUcbbCs2Zq8=
-github.com/pion/interceptor v0.1.12/go.mod h1:bDtgAD9dRkBZpWHGKaoKb42FhDHTG2rX8Ii9LRALLVA=
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 github.com/pion/sdp/v3 v3.0.6/go.mod h1:iiFWFpQO8Fy3S5ldclBkpXqmWy02ns78NOKoLLL0YQw=
-github.com/pion/srtp/v2 v2.0.10 h1:b8ZvEuI+mrL8hbr/f1YiJFB34UMrOac3R3N1yq2UN0w=
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-github.com/pion/stun v0.3.5/go.mod h1:gDMim+47EeEtfWogA37n6qXZS88L5V6LqFcf+DZA2UA=
-github.com/pion/transport v0.12.2/go.mod h1:N3+vZQD9HlDP5GWkZ85LohxNsDcNgofQmyL6ojX5d8Q=
-github.com/pion/transport v0.13.0/go.mod h1:yxm9uXpK9bpBBWkITk13cLo1y5/ur5VQpG22ny6EP7g=
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 github.com/pion/transport v0.14.1 h1:XSM6olwW+o8J4SCmOBb/BpwZypkHeyM0PGFCxNQBr40=
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-github.com/pion/turn/v2 v2.0.8 h1:KEstL92OUN3k5k8qxsXHpr7WWfrdp7iJZHx99ud8muw=
-github.com/pion/turn/v2 v2.0.8/go.mod h1:+y7xl719J8bAEVpSXBXvTxStjJv3hbz9YFflvkpcGPw=
-github.com/pion/udp v0.1.1 h1:8UAPvyqmsxK8oOjloDk4wUt63TzFe9WEJkg5lChlj7o=
-github.com/pion/udp v0.1.1/go.mod h1:6AFo+CMdKQm7UiA0eUPA8/eVCTx8jBIITLZHc9DWX5M=
-github.com/pion/webrtc/v3 v3.1.50 h1:wLMo1+re4WMZ9Kun9qcGcY+XoHkE3i0CXrrc0sjhVCk=
-github.com/pion/webrtc/v3 v3.1.50/go.mod h1:y9n09weIXB+sjb9mi0GBBewNxo4TKUQm5qdtT5v3/X4=
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+github.com/pion/turn/v2 v2.1.0/go.mod h1:yrT5XbXSGX1VFSF31A3c1kCNB5bBZgk/uu5LET162qs=
+github.com/pion/webrtc/v3 v3.2.11 h1:lfGKYZcG7ghCTQWn+zsD+icIIWL3qIfclEjBGk537+s=
+github.com/pion/webrtc/v3 v3.2.11/go.mod h1:fejQio1v8tKG4ntq4u8H4uDHsCNX6eX7bT093t4H+0E=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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@@ -93,46 +93,47 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
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-github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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+golang.org/x/net v0.9.0/go.mod h1:d48xBJpPfHeWQsugry2m+kC02ZBRGRgulfHnEXEuWns=
+golang.org/x/net v0.10.0 h1:X2//UzNDwYmtCLn7To6G58Wr6f5ahEAQgKNzv9Y951M=
+golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -146,29 +147,39 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210112080510-489259a85091/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220608164250-635b8c9b7f68/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220622161953-175b2fd9d664/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.3.0 h1:w8ZOecv6NaNa/zC8944JTU3vz4u6Lagfk4RPQxv92NQ=
-golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
+golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.1.0/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.3.0/go.mod h1:q750SLmJuPmVoN1blW3UFBPREJfb1KmY3vwxfr+nFDA=
+golang.org/x/term v0.4.0/go.mod h1:9P2UbLfCdcvo3p/nzKvsmas4TnlujnuoV9hGgYzW1lQ=
+golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
+golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U=
+golang.org/x/term v0.7.0/go.mod h1:P32HKFT3hSsZrRxla30E9HqToFYAQPCMs/zFMBUFqPY=
+golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.5.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.6.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/text v0.10.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20201224043029-2b0845dc783e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
--- a/pkg/avfoundation/AVFoundationBind/AVFoundationBind.h
+++ b/pkg/avfoundation/AVFoundationBind/AVFoundationBind.h
@@ -27,6 +27,7 @@
 #define MAX_DEVICES                      8
 #define MAX_PROPERTIES                   64
 #define MAX_DEVICE_UID_CHARS             64
+#define MAX_DEVICE_NAME_CHARS            64

 typedef const char* STATUS;
 static STATUS STATUS_OK                       = (STATUS) NULL;
@@ -46,7 +47,7 @@ typedef enum AVBindFrameFormat {
    AVBindFrameFormatI420,
    AVBindFrameFormatNV21,
    AVBindFrameFormatNV12,
-    AVBindFrameFormatYUY2,
+    AVBindFrameFormatYUYV,
    AVBindFrameFormatUYVY,
 } AVBindFrameFormat;

@@ -65,6 +66,7 @@ typedef struct AVBindSession AVBindSession, *PAVBindSession;

 typedef struct {
    char uid[MAX_DEVICE_UID_CHARS + 1];
+    char name[MAX_DEVICE_NAME_CHARS + 1];
 } AVBindDevice, *PAVBindDevice;

 // AVBindDevices returns a list of AVBindDevices. The result array is pointing to a static
--- a/pkg/avfoundation/AVFoundationBind/AVFoundationBind.m
+++ b/pkg/avfoundation/AVFoundationBind/AVFoundationBind.m
@@ -139,7 +139,7 @@ STATUS frameFormatToFourCC(AVBindFrameFormat format, FourCharCode *pFourCC) {
        case AVBindFrameFormatUYVY:
            *pFourCC = kCVPixelFormatType_422YpCbCr8;
            break;
-        case AVBindFrameFormatYUY2:
+        case AVBindFrameFormatYUYV:
            *pFourCC = kCVPixelFormatType_422YpCbCr8_yuvs;
            break;
        // TODO: Add the rest of frame formats
@@ -163,7 +163,7 @@ STATUS frameFormatFromFourCC(FourCharCode fourCC, AVBindFrameFormat *pFormat) {
            *pFormat = AVBindFrameFormatUYVY;
            break;
        case kCVPixelFormatType_422YpCbCr8_yuvs:
-            *pFormat = AVBindFrameFormatYUY2;
+            *pFormat = AVBindFrameFormatYUYV;
            break;
         // TODO: Add the rest of frame formats
        default:
@@ -201,6 +201,8 @@ STATUS AVBindDevices(AVBindMediaType mediaType, PAVBindDevice *ppDevices, int *p
        pDevice = devices + i;
        strncpy(pDevice->uid, refDevice.uniqueID.UTF8String, MAX_DEVICE_UID_CHARS);
        pDevice->uid[MAX_DEVICE_UID_CHARS] = '\0';
+        strncpy(pDevice->name, refDevice.localizedName.UTF8String, MAX_DEVICE_NAME_CHARS);
+        pDevice->name[MAX_DEVICE_NAME_CHARS] = '\0';
        i++;
    }

--- a/pkg/avfoundation/avfoundation_darwin.go
+++ b/pkg/avfoundation/avfoundation_darwin.go
@@ -34,6 +34,7 @@ type Device struct {
 	// UID is a unique identifier for a device
 	UID     string
 	cDevice C.AVBindDevice
+	Name    string
 }

 func frameFormatToAVBind(f frame.Format) (C.AVBindFrameFormat, bool) {
@@ -44,8 +45,8 @@ func frameFormatToAVBind(f frame.Format) (C.AVBindFrameFormat, bool) {
 		return C.AVBindFrameFormatNV21, true
 	case frame.FormatNV12:
 		return C.AVBindFrameFormatNV12, true
-	case frame.FormatYUY2:
-		return C.AVBindFrameFormatYUY2, true
+	case frame.FormatYUYV:
+		return C.AVBindFrameFormatYUYV, true
 	case frame.FormatUYVY:
 		return C.AVBindFrameFormatUYVY, true
 	default:
@@ -61,8 +62,8 @@ func frameFormatFromAVBind(f C.AVBindFrameFormat) (frame.Format, bool) {
 		return frame.FormatNV21, true
 	case C.AVBindFrameFormatNV12:
 		return frame.FormatNV12, true
-	case C.AVBindFrameFormatYUY2:
-		return frame.FormatYUY2, true
+	case C.AVBindFrameFormatYUYV:
+		return frame.FormatYUYV, true
 	case C.AVBindFrameFormatUYVY:
 		return frame.FormatUYVY, true
 	default:
@@ -87,6 +88,7 @@ func Devices(mediaType MediaType) ([]Device, error) {
 	for i := range devices {
 		devices[i].UID = C.GoString(&cDevices[i].uid[0])
 		devices[i].cDevice = cDevices[i]
+		devices[i].Name = C.GoString(&cDevices[i].name[0])
 	}

 	return devices, nil
--- a/pkg/codec/mmal/mmal.go
+++ b/pkg/codec/mmal/mmal.go
@@ -64,10 +64,11 @@ func (e *encoder) Read() ([]byte, func(), error) {
 		return nil, func() {}, io.EOF
 	}

-	img, _, err := e.r.Read()
+	img, release, err := e.r.Read()
 	if err != nil {
 		return nil, func() {}, err
 	}
+	defer release()
 	imgReal := img.(*image.YCbCr)
 	var y, cb, cr C.Slice
 	y.data = (*C.uchar)(&imgReal.Y[0])
--- a/pkg/codec/openh264/openh264.go
+++ b/pkg/codec/openh264/openh264.go
@@ -65,10 +65,11 @@ func (e *encoder) Read() ([]byte, func(), error) {
 		return nil, func() {}, io.EOF
 	}

-	img, _, err := e.r.Read()
+	img, release, err := e.r.Read()
 	if err != nil {
 		return nil, func() {}, err
 	}
+	defer release()

 	yuvImg := img.(*image.YCbCr)
 	bounds := yuvImg.Bounds()
--- a/pkg/codec/vaapi/vp8.go
+++ b/pkg/codec/vaapi/vp8.go
@@ -304,10 +304,11 @@ func (e *encoderVP8) Read() ([]byte, func(), error) {
 		return nil, func() {}, io.EOF
 	}

-	img, _, err := e.r.Read()
+	img, release, err := e.r.Read()
 	if err != nil {
 		return nil, func() {}, err
 	}
+	defer release()
 	yuvImg := img.(*image.YCbCr)

 	kf := e.frameCnt%e.params.KeyFrameInterval == 0
--- a/pkg/codec/vaapi/vp9.go
+++ b/pkg/codec/vaapi/vp9.go
@@ -293,10 +293,11 @@ func (e *encoderVP9) Read() ([]byte, func(), error) {
 		return nil, func() {}, io.EOF
 	}

-	img, _, err := e.r.Read()
+	img, release, err := e.r.Read()
 	if err != nil {
 		return nil, func() {}, err
 	}
+	defer release()
 	yuvImg := img.(*image.YCbCr)

 	kf := e.frameCnt%e.params.KeyFrameInterval == 0
--- a/pkg/codec/vpx/vpx.go
+++ b/pkg/codec/vpx/vpx.go
@@ -219,10 +219,11 @@ func (e *encoder) Read() ([]byte, func(), error) {
 		return nil, func() {}, io.EOF
 	}

-	img, _, err := e.r.Read()
+	img, release, err := e.r.Read()
 	if err != nil {
 		return nil, func() {}, err
 	}
+	defer release()
 	yuvImg := img.(*image.YCbCr)
 	bounds := yuvImg.Bounds()
 	height := C.int(bounds.Dy())
--- a/pkg/codec/x264/x264.go
+++ b/pkg/codec/x264/x264.go
@@ -102,10 +102,11 @@ func (e *encoder) Read() ([]byte, func(), error) {
 		return nil, func() {}, io.EOF
 	}

-	img, _, err := e.r.Read()
+	img, release, err := e.r.Read()
 	if err != nil {
 		return nil, func() {}, err
 	}
+	defer release()
 	yuvImg := img.(*image.YCbCr)

 	var rc C.int
--- a/pkg/driver/availability/error.go
+++ b/pkg/driver/availability/error.go
@@ -0,0 +1,28 @@
+package availability
+
+import (
+	"errors"
+)
+
+var (
+	ErrUnimplemented = NewError("not implemented")
+	ErrBusy          = NewError("device or resource busy")
+	ErrNoDevice      = NewError("no such device")
+)
+
+type errorString struct {
+	s string
+}
+
+func NewError(text string) error {
+	return &errorString{text}
+}
+
+func IsError(err error) bool {
+	var target *errorString
+	return errors.As(err, &target)
+}
+
+func (e *errorString) Error() string {
+	return e.s
+}
--- a/pkg/driver/camera/camera_darwin.go
+++ b/pkg/driver/camera/camera_darwin.go
@@ -32,6 +32,7 @@ func Initialize() {
 		driver.GetManager().Register(cam, driver.Info{
 			Label:      device.UID,
 			DeviceType: driver.Camera,
+			Name:       device.Name,
 		})
 	}
 }
--- a/pkg/driver/camera/camera_linux.go
+++ b/pkg/driver/camera/camera_linux.go
@@ -8,10 +8,15 @@ import (
 	"errors"
 	"image"
 	"io"
+	"math"
 	"os"
 	"path/filepath"
 	"strconv"
 	"sync"
+	"syscall"
+	"time"
+
+	"github.com/pion/mediadevices/pkg/driver/availability"

 	"github.com/blackjack/webcam"
 	"github.com/pion/mediadevices/pkg/driver"
@@ -60,6 +65,8 @@ var (
 	}
 )

+const bufCount = 2
+
 // Camera implementation using v4l2
 // Reference: https://linuxtv.org/downloads/v4l-dvb-apis/uapi/v4l/videodev.html#videodev
 type camera struct {
@@ -70,6 +77,7 @@ type camera struct {
 	started         bool
 	mutex           sync.Mutex
 	cancel          func()
+	prevFrameTime   time.Time
 }

 func init() {
@@ -79,6 +87,7 @@ func init() {
 // Initialize finds and registers camera devices. This is part of an experimental API.
 func Initialize() {
 	discovered := make(map[string]struct{})
+	discover(discovered, "/dev/v4l/by-id/*")
 	discover(discovered, "/dev/v4l/by-path/*")
 	discover(discovered, "/dev/video*")
 }
@@ -107,7 +116,21 @@ func discover(discovered map[string]struct{}, pattern string) {
 		if reallink == prioritizedDevice {
 			priority = driver.PriorityHigh
 		}
+
+		var name, busInfo string
+		if webcamCam, err := webcam.Open(cam.path); err == nil {
+			name, _ = webcamCam.GetName()
+			busInfo, _ = webcamCam.GetBusInfo()
+		}
+
 		driver.GetManager().Register(cam, driver.Info{
+			// 	Source: https://www.kernel.org/doc/html/v4.9/media/uapi/v4l/vidioc-querycap.html
+			//	Name of the device, a NUL-terminated UTF-8 string. For example: “Yoyodyne TV/FM”. One driver may support
+			//	different brands or models of video hardware. This information is intended for users, for example in a
+			//	menu of available devices. Since multiple TV cards of the same brand may be installed which are
+			//	supported by the same driver, this name should be combined with the character device file name
+			//	(e.g. /dev/video2) or the bus_info string to avoid ambiguities.
+			Name:       name + LabelSeparator + busInfo,
 			Label:      label + LabelSeparator + reallink,
 			DeviceType: driver.Camera,
 			Priority:   priority,
@@ -158,8 +181,13 @@ func (c *camera) Open() error {
 		return err
 	}

-	// Late frames should be discarded. Buffering should be handled in higher level.
-	cam.SetBufferCount(1)
+	// Buffering should be handled in higher level.
+	err = cam.SetBufferCount(bufCount)
+	if err != nil {
+		return err
+	}
+
+	c.prevFrameTime = time.Now()
 	c.cam = cam
 	return nil
 }
@@ -228,6 +256,13 @@ func (c *camera) VideoRecord(p prop.Media) (video.Reader, error) {
 				return nil, func() {}, io.EOF
 			}

+			if p.DiscardFramesOlderThan != 0 && time.Now().Sub(c.prevFrameTime) >= p.DiscardFramesOlderThan {
+				for i := 0; i < bufCount; i++ {
+					_ = cam.WaitForFrame(readTimeoutSec)
+					_, _ = cam.ReadFrame()
+				}
+			}
+
 			err := cam.WaitForFrame(readTimeoutSec)
 			switch err.(type) {
 			case nil:
@@ -244,6 +279,10 @@ func (c *camera) VideoRecord(p prop.Media) (video.Reader, error) {
 				return nil, func() {}, err
 			}

+			if p.DiscardFramesOlderThan != 0 {
+				c.prevFrameTime = time.Now()
+			}
+
 			// Frame is empty.
 			// Retry reading and return errEmptyFrame if it exceeds maxEmptyFrameCount.
 			if len(b) == 0 {
@@ -277,13 +316,18 @@ func (c *camera) Properties() []prop.Media {
 			}

 			if frameSize.StepWidth == 0 || frameSize.StepHeight == 0 {
-				properties = append(properties, prop.Media{
-					Video: prop.Video{
-						Width:       int(frameSize.MaxWidth),
-						Height:      int(frameSize.MaxHeight),
-						FrameFormat: supportedFormat,
-					},
-				})
+				for _, framerate := range c.cam.GetSupportedFramerates(format, frameSize.MinWidth, frameSize.MinHeight) {
+					for _, fps := range enumFramerate(framerate) {
+						properties = append(properties, prop.Media{
+							Video: prop.Video{
+								Width:       int(frameSize.MaxWidth),
+								Height:      int(frameSize.MaxHeight),
+								FrameFormat: supportedFormat,
+								FrameRate:   fps,
+							},
+						})
+					}
+				}
 			} else {
 				// FIXME: we should probably use a custom data structure to capture all of the supported resolutions
 				for _, supportedResolution := range supportedResolutions {
@@ -302,16 +346,88 @@ func (c *camera) Properties() []prop.Media {
 						continue
 					}

-					properties = append(properties, prop.Media{
-						Video: prop.Video{
-							Width:       width,
-							Height:      height,
-							FrameFormat: supportedFormat,
-						},
-					})
+					for _, framerate := range c.cam.GetSupportedFramerates(format, uint32(width), uint32(height)) {
+						for _, fps := range enumFramerate(framerate) {
+							properties = append(properties, prop.Media{
+								Video: prop.Video{
+									Width:       width,
+									Height:      height,
+									FrameFormat: supportedFormat,
+									FrameRate:   fps,
+								},
+							})
+						}
+					}
 				}
 			}
 		}
 	}
 	return properties
 }
+
+func (c *camera) IsAvailable() (bool, error) {
+	var err error
+
+	// close the opened file descriptor as quickly as possible and in all cases, including panics
+	func() {
+		var cam *webcam.Webcam
+		if cam, err = webcam.Open(c.path); err == nil {
+			defer cam.Close()
+			var index int32
+			// "Drivers must implement all the input ioctls when the device has one or more inputs..."
+			// Source: https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/video.html?highlight=vidioc_enuminput
+			if index, err = cam.GetInput(); err == nil {
+				err = cam.SelectInput(uint32(index))
+			}
+		}
+	}()
+
+	var errno syscall.Errno
+	errors.As(err, &errno)
+
+	// See https://man7.org/linux/man-pages/man3/errno.3.html
+	switch {
+	case err == nil:
+		return true, nil
+	case errno == syscall.EBUSY:
+		return false, availability.ErrBusy
+	case errno == syscall.ENODEV || errno == syscall.ENOENT:
+		return false, availability.ErrNoDevice
+	default:
+		return false, availability.NewError(errno.Error())
+	}
+}
+
+// enumFramerate returns a list of fps options from a FrameRate struct.
+// discrete framerates will return a list of 1 fps element.
+// stepwise framerates will return a list of all possible fps options.
+func enumFramerate(framerate webcam.FrameRate) []float32 {
+	var framerates []float32
+	if framerate.StepNumerator == 0 && framerate.StepDenominator == 0 {
+		fr, err := calcFramerate(framerate.MaxNumerator, framerate.MaxDenominator)
+		if err != nil {
+			return framerates
+		}
+		framerates = append(framerates, fr)
+	} else {
+		for n := framerate.MinNumerator; n <= framerate.MaxNumerator; n += framerate.StepNumerator {
+			for d := framerate.MinDenominator; d <= framerate.MaxDenominator; d += framerate.StepDenominator {
+				fr, err := calcFramerate(n, d)
+				if err != nil {
+					continue
+				}
+				framerates = append(framerates, fr)
+			}
+		}
+	}
+	return framerates
+}
+
+// calcFramerate turns fraction into a float32 fps value.
+func calcFramerate(numerator uint32, denominator uint32) (float32, error) {
+	if denominator == 0 {
+		return 0, errors.New("framerate denominator is zero")
+	}
+	// round to three decimal places to avoid floating point precision issues
+	return float32(math.Round(1000.0/((float64(numerator))/float64(denominator))) / 1000), nil
+}
--- a/pkg/driver/camera/camera_linux_test.go
+++ b/pkg/driver/camera/camera_linux_test.go
@@ -57,6 +57,68 @@ func TestDiscover(t *testing.T) {
 		drvs[0].Info().Label,
 		drvs[1].Info().Label,
 	}
+
+	// Returned drivers are unordered. Sort to get static result.
+	sort.Sort(sort.StringSlice(labels))
+
+	expected := longName + LabelSeparator + shortName
+	if label := labels[0]; label != expected {
+		t.Errorf("Expected label: %s, got: %s", expected, label)
+	}
+
+	expectedNoLink := shortName2 + LabelSeparator + shortName2
+	if label := labels[1]; label != expectedNoLink {
+		t.Errorf("Expected label: %s, got: %s", expectedNoLink, label)
+	}
+}
+
+func TestDiscoverByID(t *testing.T) {
+	const (
+		shortName  = "id-unittest-video0"
+		shortName2 = "id-unittest-video1"
+		longName   = "id-unittest-long-device-name:0:1:2:3"
+	)
+
+	dir, err := ioutil.TempDir("", "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(dir)
+
+	byIdDir := filepath.Join(dir, "v4l", "by-id")
+	if err := os.MkdirAll(byIdDir, 0755); err != nil {
+		t.Fatal(err)
+	}
+	if err := ioutil.WriteFile(filepath.Join(dir, shortName), []byte{}, 0644); err != nil {
+		t.Fatal(err)
+	}
+	if err := ioutil.WriteFile(filepath.Join(dir, shortName2), []byte{}, 0644); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.Symlink(
+		filepath.Join(dir, shortName),
+		filepath.Join(byIdDir, longName),
+	); err != nil {
+		t.Fatal(err)
+	}
+
+	discovered := make(map[string]struct{})
+	discover(discovered, filepath.Join(byIdDir, "*"))
+	discover(discovered, filepath.Join(dir, "id-unittest-video*"))
+
+	drvs := driver.GetManager().Query(func(d driver.Driver) bool {
+		// Ignore real cameras.
+		return d.Info().DeviceType == driver.Camera && strings.Contains(d.Info().Label, "id-unittest")
+	})
+	if len(drvs) != 2 {
+		t.Fatalf("Expected 2 driver, got %d drivers", len(drvs))
+	}
+
+	labels := []string{
+		drvs[0].Info().Label,
+		drvs[1].Info().Label,
+	}
+
 	// Returned drivers are unordered. Sort to get static result.
 	sort.Sort(sort.StringSlice(labels))

@@ -98,3 +160,34 @@ func TestGetCameraReadTimeout(t *testing.T) {
 		t.Errorf("Expected: %d, got: %d", expected, value)
 	}
 }
+
+func TestCalcFramerate(t *testing.T) {
+	framerates := []struct {
+		numerator   uint32
+		denominator uint32
+		expected    float32
+	}{
+		{1, 10, 10.0},
+		{1, 15, 15.0},
+		{1, 30, 30.0},
+		{1, 60, 60.0},
+		{1, 120, 120.0},
+	}
+
+	for _, framerate := range framerates {
+		value, err := calcFramerate(framerate.numerator, framerate.denominator)
+		if err != nil {
+			t.Fatal(err)
+		}
+		// make sure we do not have any rounding errors
+		if value != framerate.expected {
+			t.Errorf("Expected: %f, got: %f", framerate.expected, value)
+		}
+	}
+
+	// divide by zero check
+	_, err := calcFramerate(1, 0)
+	if err == nil {
+		t.Errorf("Expected divide by zero error")
+	}
+}
--- a/pkg/driver/driver.go
+++ b/pkg/driver/driver.go
@@ -1,6 +1,7 @@
 package driver

 import (
+	"github.com/pion/mediadevices/pkg/driver/availability"
 	"github.com/pion/mediadevices/pkg/io/audio"
 	"github.com/pion/mediadevices/pkg/io/video"
 	"github.com/pion/mediadevices/pkg/prop"
@@ -30,6 +31,7 @@ type Info struct {
 	Label      string
 	DeviceType DeviceType
 	Priority   Priority
+	Name       string
 }

 type Adapter interface {
@@ -44,3 +46,14 @@ type Driver interface {
 	Info() Info
 	Status() State
 }
+
+type AvailabilityAdapter interface {
+	IsAvailable() (bool, error)
+}
+
+func IsAvailable(d Driver) (bool, error) {
+	if aa, ok := d.(AvailabilityAdapter); ok {
+		return aa.IsAvailable()
+	}
+	return false, availability.ErrUnimplemented
+}
--- a/pkg/driver/manager.go
+++ b/pkg/driver/manager.go
@@ -1,5 +1,7 @@
 package driver

+import "sync"
+
 // FilterFn is being used to decide if a driver should be included in the
 // query result.
 type FilterFn func(Driver) bool
@@ -55,6 +57,7 @@ func FilterNot(filter FilterFn) FilterFn {

 // Manager is a singleton to manage multiple drivers and their states
 type Manager struct {
+	mu      sync.Mutex
 	drivers map[string]Driver
 }

@@ -69,6 +72,8 @@ func GetManager() *Manager {

 // Register registers adapter to be discoverable by Query
 func (m *Manager) Register(a Adapter, info Info) error {
+	m.mu.Lock()
+	defer m.mu.Unlock()
 	d := wrapAdapter(a, info)
 	m.drivers[d.ID()] = d
 	return nil
@@ -76,6 +81,8 @@ func (m *Manager) Register(a Adapter, info Info) error {

 // Query queries by using f to filter drivers, and simply return the filtered results.
 func (m *Manager) Query(f FilterFn) []Driver {
+	m.mu.Lock()
+	defer m.mu.Unlock()
 	results := make([]Driver, 0)
 	for _, d := range m.drivers {
 		if ok := f(d); ok {
--- a/pkg/driver/manager_test.go
+++ b/pkg/driver/manager_test.go
@@ -1,13 +1,17 @@
 package driver

 import (
+	"github.com/pion/mediadevices/pkg/io/audio"
+	"github.com/pion/mediadevices/pkg/io/video"
+	"github.com/pion/mediadevices/pkg/prop"
+	"github.com/stretchr/testify/assert"
 	"testing"
 )

-func filterTrue(d Driver) bool {
+func filterTrue(_ Driver) bool {
 	return true
 }
-func filterFalse(d Driver) bool {
+func filterFalse(_ Driver) bool {
 	return false
 }

@@ -40,3 +44,71 @@ func TestFilterAnd(t *testing.T) {
 		t.Error("FilterAnd(filterTrue, filterTrue, filterTrue)() must be true")
 	}
 }
+
+type fakeVideoAdapter struct{}
+
+func (a *fakeVideoAdapter) Open() error              { return nil }
+func (a *fakeVideoAdapter) Close() error             { return nil }
+func (a *fakeVideoAdapter) Properties() []prop.Media { return nil }
+
+func (a *fakeVideoAdapter) VideoRecord(_ prop.Media) (r video.Reader, err error) { return nil, nil }
+
+type fakeAudioAdapter struct{}
+
+func (a *fakeAudioAdapter) Open() error              { return nil }
+func (a *fakeAudioAdapter) Close() error             { return nil }
+func (a *fakeAudioAdapter) Properties() []prop.Media { return nil }
+
+func (a *fakeAudioAdapter) AudioRecord(_ prop.Media) (r audio.Reader, err error) { return nil, nil }
+
+type fakeAdapter struct{}
+
+func (a *fakeAdapter) Open() error              { return nil }
+func (a *fakeAdapter) Close() error             { return nil }
+func (a *fakeAdapter) Properties() []prop.Media { return nil }
+
+func TestRegister(t *testing.T) {
+	m := GetManager()
+
+	va := &fakeVideoAdapter{}
+	err := m.Register(va, Info{})
+	assert.NoError(t, err, "cannot register video adapter")
+	assert.Equal(t, len(m.Query(filterTrue)), 1)
+
+	aa := &fakeAudioAdapter{}
+	err = m.Register(aa, Info{})
+	assert.NoError(t, err, "cannot register audio adapter")
+	assert.Equal(t, len(m.Query(filterTrue)), 2)
+
+	a := &fakeAdapter{}
+	assert.Panics(t, func() { m.Register(a, Info{}) }, "should not register adapter that is neither audio nor video")
+	assert.Equal(t, len(m.Query(filterTrue)), 2)
+}
+
+func TestRegisterSync(t *testing.T) {
+	m := GetManager()
+	start := make(chan struct{})
+	race := func() {
+		<-start
+		assert.NoError(t, m.Register(&fakeVideoAdapter{}, Info{}))
+	}
+
+	go race()
+	go race()
+	close(start)
+}
+
+func TestQuerySync(t *testing.T) {
+	m := GetManager()
+	start := make(chan struct{})
+	race := func() {
+		<-start
+		m.Query(filterTrue)
+	}
+
+	go race()
+	go race()
+	close(start)
+	// write while reading
+	assert.NoError(t, m.Register(&fakeVideoAdapter{}, Info{}))
+}
--- a/pkg/driver/microphone/microphone.go
+++ b/pkg/driver/microphone/microphone.go
@@ -68,6 +68,7 @@ func Initialize() {
 				Label:      device.ID.String(),
 				DeviceType: driver.Microphone,
 				Priority:   priority,
+				Name:       info.Name(),
 			})
 		}
 	}
--- a/pkg/driver/vncdriver/vnc/README.md
+++ b/pkg/driver/vncdriver/vnc/README.md
@@ -3,7 +3,13 @@
 go-vnc is a VNC library for Go, initially supporting VNC clients but
 with the goal of eventually implementing a VNC server.

-This library implements [RFC 6143](http://tools.ietf.org/html/rfc6143).
+This library implements [RFC 6143][rfc6143].
+
+## RFCs
+### Implemented
+- **RFC **: [The Remote Framebuffer Protocol][rfc6143]
+
+[rfc6143]: http://tools.ietf.org/html/rfc6143

 ## Usage & Installation

--- a/pkg/driver/wrapper.go
+++ b/pkg/driver/wrapper.go
@@ -2,6 +2,7 @@ package driver

 import (
 	"github.com/google/uuid"
+	"github.com/pion/mediadevices/pkg/driver/availability"
 	"github.com/pion/mediadevices/pkg/io/audio"
 	"github.com/pion/mediadevices/pkg/io/video"
 	"github.com/pion/mediadevices/pkg/prop"
@@ -21,6 +22,10 @@ func wrapAdapter(a Adapter, info Info) Driver {
 		state:   StateClosed,
 	}

+	if aa, ok := a.(AvailabilityAdapter); ok {
+		d.isAvailable = aa.IsAvailable
+	}
+
 	switch v := a.(type) {
 	case VideoRecorder:
 		// Only expose Driver and VideoRecorder interfaces
@@ -28,7 +33,8 @@ func wrapAdapter(a Adapter, info Info) Driver {
 		r := &struct {
 			Driver
 			VideoRecorder
-		}{d, d}
+			AvailabilityAdapter
+		}{d, d, d}
 		return r
 	case AudioRecorder:
 		// Only expose Driver and AudioRecorder interfaces
@@ -36,7 +42,8 @@ func wrapAdapter(a Adapter, info Info) Driver {
 		return &struct {
 			Driver
 			AudioRecorder
-		}{d, d}
+			AvailabilityAdapter
+		}{d, d, d}
 	default:
 		panic("adapter has to be either VideoRecorder/AudioRecorder")
 	}
@@ -46,9 +53,10 @@ type adapterWrapper struct {
 	Adapter
 	VideoRecorder
 	AudioRecorder
-	id    string
-	info  Info
-	state State
+	id          string
+	info        Info
+	state       State
+	isAvailable func() (bool, error)
 }

 func (w *adapterWrapper) ID() string {
@@ -104,3 +112,10 @@ func (w *adapterWrapper) AudioRecord(p prop.Media) (r audio.Reader, err error) {
 	}
 	return
 }
+
+func (w *adapterWrapper) IsAvailable() (bool, error) {
+	if w.isAvailable == nil {
+		return false, availability.ErrUnimplemented
+	}
+	return w.isAvailable()
+}
--- a/pkg/driver/wrapper_test.go
+++ b/pkg/driver/wrapper_test.go
@@ -39,6 +39,10 @@ func (a *audioAdapterBrokenMock) AudioRecord(p prop.Media) (r audio.Reader, err
 	return nil, recordErr
 }

+type availabilityAdapterMock struct{ videoAdapterMock }
+
+func (a *availabilityAdapterMock) IsAvailable() (bool, error) { return true, nil }
+
 func TestVideoWrapperState(t *testing.T) {
 	var a videoAdapterMock
 	d := wrapAdapter(&a, Info{})
@@ -136,3 +140,38 @@ func TestAudioWrapperWithBrokenRecorderState(t *testing.T) {
 		t.Errorf("expected the status to be %v, but got %v", StateClosed, d.Status())
 	}
 }
+
+func TestWrapperAvailabilityAdapter(t *testing.T) {
+	var aa availabilityAdapterMock
+	d := wrapAdapter(&aa, Info{})
+
+	ok, err := IsAvailable(d)
+	if err != nil {
+		t.Errorf("expected nil, but got %v", err)
+	}
+	if !ok {
+		t.Errorf("expected true, but got %v", ok)
+	}
+
+	var v videoAdapterMock
+	d = wrapAdapter(&v, Info{})
+
+	ok, err = IsAvailable(d)
+	if err == nil {
+		t.Errorf("expected err, but got %v", err)
+	}
+	if ok {
+		t.Errorf("expected false, but got %v", ok)
+	}
+
+	var a audioAdapterMock
+	d = wrapAdapter(&a, Info{})
+
+	ok, err = IsAvailable(d)
+	if err == nil {
+		t.Errorf("expected err, but got %v", err)
+	}
+	if ok {
+		t.Errorf("expected false, but got %v", ok)
+	}
+}
--- a/pkg/frame/compressed.go
+++ b/pkg/frame/compressed.go
@@ -2,11 +2,86 @@ package frame

 import (
 	"bytes"
+	"errors"
 	"image"
 	"image/jpeg"
 )

+/*
+Thank you to https://github.com/filiptc/gorbit/blob/fa87ff39b68a6706306f34c318e0b9a5a3c97110/image/overlay.go#L37-L40
+for addMotionDht, dhtMarker, dht, and sosMarker. These are protected under the following license:
+
+The MIT License (MIT)
+
+Copyright (c) 2016 Philip Thomas Casado
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+var (
+	dhtMarker                                       = []byte{255, 196}
+	dht                                             = []byte{1, 162, 0, 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 1, 0, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 16, 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 125, 1, 2, 3, 0, 4, 17, 5, 18, 33, 49, 65, 6, 19, 81, 97, 7, 34, 113, 20, 50, 129, 145, 161, 8, 35, 66, 177, 193, 21, 82, 209, 240, 36, 51, 98, 114, 130, 9, 10, 22, 23, 24, 25, 26, 37, 38, 39, 40, 41, 42, 52, 53, 54, 55, 56, 57, 58, 67, 68, 69, 70, 71, 72, 73, 74, 83, 84, 85, 86, 87, 88, 89, 90, 99, 100, 101, 102, 103, 104, 105, 106, 115, 116, 117, 118, 119, 120, 121, 122, 131, 132, 133, 134, 135, 136, 137, 138, 146, 147, 148, 149, 150, 151, 152, 153, 154, 162, 163, 164, 165, 166, 167, 168, 169, 170, 178, 179, 180, 181, 182, 183, 184, 185, 186, 194, 195, 196, 197, 198, 199, 200, 201, 202, 210, 211, 212, 213, 214, 215, 216, 217, 218, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 17, 0, 2, 1, 2, 4, 4, 3, 4, 7, 5, 4, 4, 0, 1, 2, 119, 0, 1, 2, 3, 17, 4, 5, 33, 49, 6, 18, 65, 81, 7, 97, 113, 19, 34, 50, 129, 8, 20, 66, 145, 161, 177, 193, 9, 35, 51, 82, 240, 21, 98, 114, 209, 10, 22, 36, 52, 225, 37, 241, 23, 24, 25, 26, 38, 39, 40, 41, 42, 53, 54, 55, 56, 57, 58, 67, 68, 69, 70, 71, 72, 73, 74, 83, 84, 85, 86, 87, 88, 89, 90, 99, 100, 101, 102, 103, 104, 105, 106, 115, 116, 117, 118, 119, 120, 121, 122, 130, 131, 132, 133, 134, 135, 136, 137, 138, 146, 147, 148, 149, 150, 151, 152, 153, 154, 162, 163, 164, 165, 166, 167, 168, 169, 170, 178, 179, 180, 181, 182, 183, 184, 185, 186, 194, 195, 196, 197, 198, 199, 200, 201, 202, 210, 211, 212, 213, 214, 215, 216, 217, 218, 226, 227, 228, 229, 230, 231, 232, 233, 234, 242, 243, 244, 245, 246, 247, 248, 249, 250}
+	sosMarker                                       = []byte{255, 218}
+	huffmanTableInfoLength                          = len(dhtMarker) + len(dht) + len(sosMarker)
+	uninitializedHuffmanTableError jpeg.FormatError = jpeg.FormatError("uninitialized Huffman table")
+)
+
 func decodeMJPEG(frame []byte, width, height int) (image.Image, func(), error) {
 	img, err := jpeg.Decode(bytes.NewReader(frame))
+	if err == nil {
+		return img, func() {}, err
+	}
+
+	if errors.As(err, &uninitializedHuffmanTableError) {
+		if err.Error() == uninitializedHuffmanTableError.Error() {
+			img, err = jpeg.Decode(bytes.NewReader(addMotionDht(frame)))
+		}
+	}
+
+	if err != nil {
+		return nil, nil, err
+	}
+
 	return img, func() {}, err
 }
+
+func addMotionDht(frame []byte) []byte {
+	jpegParts := bytes.Split(frame, sosMarker)
+	if len(jpegParts) != 2 {
+		return frame
+	}
+	correctedFrame := make([]byte, len(jpegParts[0])+huffmanTableInfoLength+len(jpegParts[1]))
+	correctedFrameOffset := 0
+
+	copy(correctedFrame[correctedFrameOffset:], jpegParts[0])
+	correctedFrameOffset += len(jpegParts[0])
+
+	copy(correctedFrame[correctedFrameOffset:], dhtMarker)
+	correctedFrameOffset += len(dhtMarker)
+
+	copy(correctedFrame[correctedFrameOffset:], dht)
+	correctedFrameOffset += len(dht)
+
+	copy(correctedFrame[correctedFrameOffset:], sosMarker)
+	correctedFrameOffset += len(sosMarker)
+
+	copy(correctedFrame[correctedFrameOffset:], jpegParts[1])
+	return correctedFrame
+}
--- a/pkg/frame/compressed_test.go
+++ b/pkg/frame/compressed_test.go
@@ -0,0 +1,51 @@
+package frame
+
+import (
+	"bytes"
+	"image/jpeg"
+	"testing"
+)
+
+func TestAddMotionDht(t *testing.T) {
+	uninitializedHuffmanTableFrame, err := jpeg.Decode(bytes.NewReader(UninitializedHuffmanTable))
+
+	// Decode fails with an uninitialized Huffman table error for sample input
+	expectedErrorMessage := "invalid JPEG format: uninitialized Huffman table"
+	if err.Error() != expectedErrorMessage {
+		t.Fatalf("Wrong decode error result,\nexpected:\n%+v\ngot:\n%+v", expectedErrorMessage, err)
+	}
+
+	// Decode passes after adding default Huffman table to
+	defaultHuffmanTableFrame, err := jpeg.Decode(bytes.NewReader(addMotionDht(UninitializedHuffmanTable)))
+	if err != nil {
+		t.Fatalf("Expected decode function to pass after adding default Huffman table. Failed with %v\n", err)
+	}
+
+	// Adding default Huffman table to a valid frame without a Huffman table changes the table
+	if uninitializedHuffmanTableFrame == defaultHuffmanTableFrame {
+		t.Fatalf("Expected addMotionDht to update frame. Instead returned original frame")
+	}
+
+	// Check that an improperly constructed frame does not get updated by addMotionDht
+	randomBytes := []byte{1, 2, 3, 4}
+	frame1, err := jpeg.Decode(bytes.NewReader(randomBytes))
+	if err == nil {
+		t.Fatalf("Expected decode function to fail with random bytes but passed.")
+	}
+
+	frame2, err := jpeg.Decode(bytes.NewReader(addMotionDht(randomBytes)))
+	if err == nil {
+		t.Fatalf("Expected decode function to fail with random bytes but passed.")
+	}
+
+	if frame1 != frame2 {
+		t.Fatalf("addMotionDht updated the frame despite being improperly constructed")
+	}
+}
+
+func TestDecodeMJPEG(t *testing.T) {
+	_, _, err := decodeMJPEG(UninitializedHuffmanTable, 640, 480)
+	if err != nil {
+		t.Fatalf("Expected decode function to pass. Failed with %v\n", err)
+	}
+}
--- a/pkg/frame/decode.go
+++ b/pkg/frame/decode.go
@@ -7,36 +7,38 @@ import (
 type Format string

 const (
-	// FormatI420 https://www.fourcc.org/pixel-format/yuv-i420/
+	// FormatI420 https://wiki.videolan.org/YUV#I420
 	FormatI420 Format = "I420"
 	// FormatI444 is a YUV format without sub-sampling
 	FormatI444 Format = "I444"
-	// FormatNV21 https://www.fourcc.org/pixel-format/yuv-nv21/
+	// FormatNV21 https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-nv12.html
 	FormatNV21 = "NV21"
-	// FormatNV12 https://www.fourcc.org/pixel-format/yuv-nv12/
+	// FormatNV12 https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-nv12.html
 	FormatNV12 = "NV12"
-	// FormatYUY2 https://www.fourcc.org/pixel-format/yuv-yuy2/
+	// FormatYUY2 https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-yuyv.html
+	// YUY2 is what Windows calls YUYV
 	FormatYUY2 = "YUY2"
-	// FormatUYVY https://www.fourcc.org/pixel-format/yuv-uyvy/
+	// FormatYUYV https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-yuyv.html
+	FormatYUYV = "YUYV"
+	// FormatUYVY https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-uyvy.html
 	FormatUYVY = "UYVY"

-	// FormatRGBA https://www.fourcc.org/pixel-format/rgb-rgba/
+	// FormatRGBA https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-rgb.html
 	FormatRGBA Format = "RGBA"

-	// FormatMJPEG https://www.fourcc.org/mjpg/
+	// FormatMJPEG https://wiki.videolan.org/MJPEG
 	FormatMJPEG = "MJPEG"

 	// FormatZ16 https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-z16.html
 	FormatZ16 = "Z16"
 )

-const FormatYUYV = FormatYUY2
-
 var decoderMap = map[Format]decoderFunc{
 	FormatI420:  decodeI420,
 	FormatNV21:  decodeNV21,
 	FormatNV12:  decodeNV12,
 	FormatYUY2:  decodeYUY2,
+	FormatYUYV:  decodeYUY2,
 	FormatUYVY:  decodeUYVY,
 	FormatMJPEG: decodeMJPEG,
 	FormatZ16:   decodeZ16,
--- a/pkg/frame/sampleFrames.go
+++ b/pkg/frame/sampleFrames.go
--- a/pkg/io/video/convert.go
+++ b/pkg/io/video/convert.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"image"
 	"image/color"
+	"sync"
 )

 // imageToYCbCr converts src to *image.YCbCr and store it to dst
@@ -60,29 +61,61 @@ func imageToYCbCr(dst *image.YCbCr, src image.Image) {
 	}
 }

+// bytePool stores slices to be reused
+// New method is not set as the slice size
+// should be allocated according to subsample ratio
+var bytesPool sync.Pool
+
 // ToI420 converts r to a new reader that will output images in I420 format
 func ToI420(r Reader) Reader {
 	var yuvImg image.YCbCr
+
+	getSlice := func(cLen int) []uint8 {
+		// Retrieve slice from pool
+		dst, ok := bytesPool.Get().([]byte)
+
+		// Compare value or capacity of retrieved object
+		// If less than expected, reallocate new object
+		if !ok || cap(dst) < 2*cLen {
+			// Allocating memory for Cb and Cr
+			dst = make([]byte, 2*cLen, 2*cLen)
+		}
+
+		return dst
+	}
+
 	return ReaderFunc(func() (image.Image, func(), error) {
 		img, _, err := r.Read()
 		if err != nil {
 			return nil, func() {}, err
 		}

+		var releaseFunc func() = func() {}
+
 		imageToYCbCr(&yuvImg, img)

 		// Covert pixel format to I420
 		switch yuvImg.SubsampleRatio {
 		case image.YCbCrSubsampleRatio420:
 		case image.YCbCrSubsampleRatio444:
-			yuvImg = i444ToI420(yuvImg)
+			cLen := yuvImg.CStride * yuvImg.Rect.Dy() / 4
+			dst := getSlice(cLen)
+			yuvImg = i444ToI420(yuvImg, dst)
+			releaseFunc = func() {
+				bytesPool.Put(dst)
+			}
 		case image.YCbCrSubsampleRatio422:
-			yuvImg = i422ToI420(yuvImg)
+			cLen := yuvImg.CStride * (yuvImg.Rect.Dy() / 2)
+			dst := getSlice(cLen)
+			yuvImg = i422ToI420(yuvImg, dst)
+			releaseFunc = func() {
+				bytesPool.Put(dst)
+			}
 		default:
-			return nil, func() {}, fmt.Errorf("unsupported pixel format: %s", yuvImg.SubsampleRatio)
+			return nil, releaseFunc, fmt.Errorf("unsupported pixel format: %s", yuvImg.SubsampleRatio)
 		}

-		return &yuvImg, func() {}, nil
+		return &yuvImg, releaseFunc, nil
 	})
 }

--- a/pkg/io/video/convert_cgo.go
+++ b/pkg/io/video/convert_cgo.go
@@ -15,10 +15,13 @@ import "C"
 // All functions switched at runtime must be declared also in convert_nocgo.go.
 const hasCGOConvert = true

-func i444ToI420(img image.YCbCr) image.YCbCr {
+func i444ToI420(img image.YCbCr, dst []uint8) image.YCbCr {
 	h := img.Rect.Dy()
 	cLen := img.CStride * h / 4
-	cbDst, crDst := make([]uint8, cLen), make([]uint8, cLen)
+	// Divide preallocated memory to cbDst and crDst
+	// and truncate cap and len to cLen
+	cbDst, crDst := dst[:cLen:cLen], dst[cLen:]
+	crDst = crDst[:cLen:cLen]
 	C.i444ToI420CGO(
 		(*C.uchar)(&cbDst[0]), (*C.uchar)(&crDst[0]),
 		(*C.uchar)(&img.Cb[0]), (*C.uchar)(&img.Cr[0]),
@@ -31,10 +34,13 @@ func i444ToI420(img image.YCbCr) image.YCbCr {
 	return img
 }

-func i422ToI420(img image.YCbCr) image.YCbCr {
+func i422ToI420(img image.YCbCr, dst []uint8) image.YCbCr {
 	h := img.Rect.Dy()
 	cLen := img.CStride * (h / 2)
-	cbDst, crDst := make([]uint8, cLen), make([]uint8, cLen)
+	// Divide preallocated memory to cbDst and crDst
+	// and truncate cap and len to cLen
+	cbDst, crDst := dst[:cLen:cLen], dst[cLen:]
+	crDst = crDst[:cLen:cLen]
 	C.i422ToI420CGO(
 		(*C.uchar)(&cbDst[0]), (*C.uchar)(&crDst[0]),
 		(*C.uchar)(&img.Cb[0]), (*C.uchar)(&img.Cr[0]),
--- a/pkg/io/video/convert_nocgo.go
+++ b/pkg/io/video/convert_nocgo.go
@@ -10,13 +10,16 @@ import (

 const hasCGOConvert = false

-func i444ToI420(img image.YCbCr) image.YCbCr {
+func i444ToI420(img image.YCbCr, dst []uint8) image.YCbCr {
 	h := img.Rect.Dy()
 	addrSrc0 := 0
 	addrSrc1 := img.CStride
-	cLen := img.CStride * (h / 2)
+	cLen := img.CStride * (h / 4)
 	addrDst := 0
-	cbDst, crDst := make([]uint8, cLen), make([]uint8, cLen)
+	// Divide preallocated memory to cbDst and crDst
+	// and truncate cap and len to cLen
+	cbDst, crDst := dst[:cLen:cLen], dst[cLen:]
+	crDst = crDst[:cLen:cLen]

 	for i := 0; i < h/2; i++ {
 		for j := 0; j < img.CStride/2; j++ {
@@ -40,19 +43,22 @@ func i444ToI420(img image.YCbCr) image.YCbCr {
 	return img
 }

-func i422ToI420(img image.YCbCr) image.YCbCr {
+func i422ToI420(img image.YCbCr, dst []uint8) image.YCbCr {
 	h := img.Rect.Dy()
 	addrSrc := 0
 	cLen := img.CStride * (h / 2)
-	cbDst, crDst := make([]uint8, cLen), make([]uint8, cLen)
+	// Divide preallocated memory to cbDst and crDst
+	// and truncate cap and len to cLen
+	cbDst, crDst := dst[:cLen:cLen], dst[cLen:]
+	crDst = crDst[:cLen:cLen]
 	addrDst := 0

 	for i := 0; i < h/2; i++ {
 		for j := 0; j < img.CStride; j++ {
 			cb := uint16(img.Cb[addrSrc]) + uint16(img.Cb[addrSrc+img.CStride])
 			cr := uint16(img.Cr[addrSrc]) + uint16(img.Cr[addrSrc+img.CStride])
-			cbDst[addrDst] = uint8(cb / 4)
-			crDst[addrDst] = uint8(cr / 4)
+			cbDst[addrDst] = uint8(cb / 2)
+			crDst[addrDst] = uint8(cr / 2)
 			addrSrc++
 			addrDst++
 		}
--- a/pkg/io/video/convert_test.go
+++ b/pkg/io/video/convert_test.go
@@ -147,10 +147,11 @@ func TestToI420(t *testing.T) {
 			r := ToI420(ReaderFunc(func() (image.Image, func(), error) {
 				return c.src, func() {}, nil
 			}))
-			out, _, err := r.Read()
+			out, release, err := r.Read()
 			if err != nil {
 				t.Fatalf("Unexpected error: %v", err)
 			}
+			defer release()
 			if !reflect.DeepEqual(c.expected, out) {
 				t.Errorf("Expected output image:\n%v\ngot:\n%v", c.expected, out)
 			}
@@ -230,10 +231,11 @@ func BenchmarkToI420(b *testing.B) {
 					}))

 					for i := 0; i < b.N; i++ {
-						_, _, err := r.Read()
+						_, release, err := r.Read()
 						if err != nil {
 							b.Fatalf("Unexpected error: %v", err)
 						}
+						release()
 					}
 				})
 			}
--- a/pkg/io/video/scale_test.go
+++ b/pkg/io/video/scale_test.go
@@ -526,6 +526,9 @@ func TestScale(t *testing.T) {
 }

 func TestScaleFastBoxSampling(t *testing.T) {
+	if !hasCGOConvert {
+		t.Skip("Skip: nocgo implementation is not supported for FastBoxSampling")
+	}
 	cases := map[string]struct {
 		src           image.Image
 		width, height int
@@ -535,19 +538,19 @@ func TestScaleFastBoxSampling(t *testing.T) {
 			src: &image.YCbCr{
 				SubsampleRatio: image.YCbCrSubsampleRatio420,
 				Y: []uint8{
-					0xF0, 0xF0, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xF0, 0x10, 0x10,
-					0xF0, 0xF0, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xF0, 0x10, 0x10,
+					0xF0, 0xF8, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xF0, 0x10, 0x10,
+					0xF8, 0xF0, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0xF0, 0xF0, 0x10, 0x10,
 					0x00, 0x00, 0x00, 0x00, 0x40, 0x40, 0x00, 0x00, 0x40, 0x40, 0x00, 0x00,
 					0x00, 0x00, 0x00, 0x00, 0x40, 0x40, 0x00, 0x00, 0x40, 0x40, 0x00, 0x00,
-					0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-					0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+					0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00,
+					0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00,
 					0x00, 0x00, 0x80, 0x80, 0x30, 0x30, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00,
 					0x00, 0x00, 0x80, 0x80, 0x30, 0x30, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00,
 				},
 				Cb: []uint8{
 					0x20, 0x20, 0x80, 0x80, 0x50, 0x50,
 					0x20, 0x20, 0x80, 0x80, 0x50, 0x50,
-					0x80, 0x80, 0xE0, 0xE0, 0x30, 0x30,
+					0x80, 0x80, 0xE0, 0xE0, 0x34, 0x34,
 					0x80, 0x80, 0xE0, 0xE0, 0x30, 0x30,
 				},
 				Cr: []uint8{
@@ -565,24 +568,104 @@ func TestScaleFastBoxSampling(t *testing.T) {
 			expected: &image.YCbCr{
 				SubsampleRatio: image.YCbCrSubsampleRatio420,
 				Y: []uint8{
-					0xF0, 0x80, 0x08, 0x00, 0x78, 0x80,
-					0x08, 0x00, 0x20, 0x20, 0x20, 0x20,
-					0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-					0x00, 0x40, 0x58, 0x18, 0x18, 0x18,
+					0xF4, 0x10, 0x00, 0x00, 0xF0, 0x10,
+					0x00, 0x00, 0x40, 0x00, 0x40, 0x00,
+					0x04, 0x00, 0x00, 0x00, 0x02, 0x00,
+					0x00, 0x80, 0x30, 0x00, 0x30, 0x00,
 				},
 				Cb: []uint8{
-					0x20, 0x50, 0x68,
-					0x68, 0xB0, 0x88,
+					0x20, 0x80, 0x50,
+					0x80, 0xE0, 0x32,
 				},
 				Cr: []uint8{
-					0xE0, 0xB0, 0x98,
-					0xD0, 0x98, 0x80,
+					0xE0, 0x80, 0xB0,
+					0xF0, 0x40, 0xC0,
 				},
 				YStride: 6,
 				CStride: 3,
 				Rect:    image.Rect(0, 0, 6, 4),
 			},
 		},
+		"I420Uneven6x4to3x2": {
+			src: &image.YCbCr{
+				SubsampleRatio: image.YCbCrSubsampleRatio420,
+				Y: []uint8{
+					0xF0, 0xF0, 0x10, 0x10, 0x00, 0x00,
+					0xF0, 0xF0, 0x10, 0x10, 0x00, 0x00,
+					0x00, 0x00, 0x00, 0x00, 0x40, 0x40,
+				},
+				Cb: []uint8{
+					0x20, 0x20, 0x80,
+					0x20, 0x20, 0x80,
+				},
+				Cr: []uint8{
+					0xE0, 0xE0, 0x80,
+					0xE0, 0xE0, 0x80,
+					0xFF, // dummy data to detect out of range read
+				},
+				YStride: 6,
+				CStride: 3,
+				Rect:    image.Rect(0, 0, 6, 3),
+			},
+			width:  4,
+			height: 2,
+			expected: &image.YCbCr{
+				SubsampleRatio: image.YCbCrSubsampleRatio420,
+				Y: []uint8{
+					0xF0, 0x10, 0x08, 0x00,
+					0x00, 0x00, 0x20, 0x40,
+				},
+				Cb: []uint8{
+					0x20, 0x80,
+				},
+				Cr: []uint8{
+					0xE0, 0x80,
+				},
+				YStride: 4,
+				CStride: 2,
+				Rect:    image.Rect(0, 0, 4, 2),
+			},
+		},
+		"I420Uneven6x3to5x2": {
+			src: &image.YCbCr{
+				SubsampleRatio: image.YCbCrSubsampleRatio420,
+				Y: []uint8{
+					0xF0, 0xF0, 0x10, 0x10, 0x00, 0x00,
+					0xF0, 0xF0, 0x10, 0x10, 0x00, 0x00,
+					0x00, 0x00, 0x00, 0x00, 0x40, 0x50,
+				},
+				Cb: []uint8{
+					0x20, 0x20, 0x80,
+					0x20, 0x20, 0x80,
+				},
+				Cr: []uint8{
+					0xE0, 0xE0, 0x80,
+					0xE0, 0xE0, 0x80,
+					0xFF, // dummy data to detect out of range read
+				},
+				YStride: 6,
+				CStride: 3,
+				Rect:    image.Rect(0, 0, 6, 3),
+			},
+			width:  5,
+			height: 2,
+			expected: &image.YCbCr{
+				SubsampleRatio: image.YCbCrSubsampleRatio420,
+				Y: []uint8{
+					0xF0, 0x10, 0x10, 0x00, 0x00,
+					0x00, 0x00, 0x00, 0x40, 0x50,
+				},
+				Cb: []uint8{
+					0x20, 0x80, 0x00,
+				},
+				Cr: []uint8{
+					0xE0, 0x80, 0x00,
+				},
+				YStride: 5,
+				CStride: 3,
+				Rect:    image.Rect(0, 0, 5, 2),
+			},
+		},
 	}

 	for name, c := range cases {
--- a/pkg/io/video/scaler_cgo.c
+++ b/pkg/io/video/scaler_cgo.c
@@ -29,7 +29,7 @@ void fastBoxSampling(
    const int sw, const int sh, const int sstride,
    uint32_t* tmp)
 {
-  memset(tmp, 0, dw * dh * ch * sizeof(tmp[0]));
+  memset(tmp, 0, dstride * dh * ch * sizeof(tmp[0]));

  for (int sy = 0; sy < sh; sy++)
  {
@@ -39,13 +39,14 @@ void fastBoxSampling(
    uint32_t* tmp2 = &tmp[ty * dstride];
    for (int sx = 0; sx < sw * ch; sx += ch)
    {
-      if (tx * sw < sx * dw)
-        tx += ch;
-
      for (int c = 0; c < ch; c++)
      {
        tmp2[tx + c] += 0x10000 | src2[sx + c];
      }
+      if (tx * sw < sx * dw)
+      {
+        tx += ch;
+      }
    }
  }

--- a/pkg/io/video/scaler_nocgo.go
+++ b/pkg/io/video/scaler_nocgo.go
@@ -0,0 +1,22 @@
+//go:build !cgo
+// +build !cgo
+
+package video
+
+import (
+	"golang.org/x/image/draw"
+	"image"
+)
+
+// ScalerFastBoxSampling mock scaler for nocgo implementation to pass tests for CGO_ENABLED=0
+var (
+	ScalerFastBoxSampling = Scaler(&FastBoxSampling{})
+)
+
+// FastBoxSampling mock implementation for nocgo implementation
+// TODO implement nocgo FastBoxSampling scaling algorithm
+type FastBoxSampling struct {
+}
+
+func (f *FastBoxSampling) Scale(_ draw.Image, _ image.Rectangle, _ image.Image, _ image.Rectangle, _ draw.Op, _ *draw.Options) {
+}
--- a/pkg/prop/prop.go
+++ b/pkg/prop/prop.go
@@ -9,7 +9,7 @@ import (
 	"github.com/pion/mediadevices/pkg/frame"
 )

-// MediaConstraints represents set of media propaty constraints.
+// MediaConstraints represents set of media property constraints.
 // Each field constrains property by min/ideal/max range, exact match, or oneof match.
 type MediaConstraints struct {
 	DeviceID StringConstraint
@@ -145,11 +145,10 @@ func (p *MediaConstraints) FitnessDistance(o Media) (float64, bool) {
 	cmps.add(p.Width, o.Width)
 	cmps.add(p.Height, o.Height)
 	cmps.add(p.FrameFormat, o.FrameFormat)
-	// The next line is comment out for now to not include framerate in the fitness function.
-	// As camera.Properties does not have access to the list of available framerate at the moment,
-	// no driver can be matched with a framerate constraint.
-	// Note this also affect screen caputre as screen.Properties does not fill in the Framerate field.
-	// cmps.add(p.FrameRate, o.FrameRate)
+	// skip framerate if not available in media properties
+	if o.FrameRate > 0.0 {
+		cmps.add(p.FrameRate, o.FrameRate)
+	}
 	cmps.add(p.SampleRate, o.SampleRate)
 	cmps.add(p.Latency, o.Latency)
 	cmps.add(p.ChannelCount, o.ChannelCount)
@@ -229,16 +228,18 @@ func (c *comparisons) fitnessDistance() (float64, bool) {

 // VideoConstraints represents a video's constraints
 type VideoConstraints struct {
-	Width, Height IntConstraint
-	FrameRate     FloatConstraint
-	FrameFormat   FrameFormatConstraint
+	Width, Height          IntConstraint
+	FrameRate              FloatConstraint
+	FrameFormat            FrameFormatConstraint
+	DiscardFramesOlderThan time.Duration
 }

 // Video represents a video's constraints
 type Video struct {
-	Width, Height int
-	FrameRate     float32
-	FrameFormat   frame.Format
+	Width, Height          int
+	FrameRate              float32
+	FrameFormat            frame.Format
+	DiscardFramesOlderThan time.Duration
 }

 // AudioConstraints represents an audio's constraints
--- a/pkg/prop/prop_test.go
+++ b/pkg/prop/prop_test.go
@@ -85,6 +85,60 @@ func TestCompareMatch(t *testing.T) {
 			}},
 			true,
 		},
+		"FloatExactMatch": {
+			MediaConstraints{VideoConstraints: VideoConstraints{
+				FrameRate: FloatExact(30),
+			}},
+			Media{Video: Video{
+				FrameRate: 30.0,
+			}},
+			true,
+		},
+		"FloatExactUnmatch": {
+			MediaConstraints{VideoConstraints: VideoConstraints{
+				FrameRate: FloatExact(30),
+			}},
+			Media{Video: Video{
+				FrameRate: 30.1,
+			}},
+			false,
+		},
+		"FloatIdealMatch": {
+			MediaConstraints{VideoConstraints: VideoConstraints{
+				FrameRate: Float(30),
+			}},
+			Media{Video: Video{
+				FrameRate: 30.0,
+			}},
+			true,
+		},
+		"FloatIdealUnmatch": {
+			MediaConstraints{VideoConstraints: VideoConstraints{
+				FrameRate: Float(30),
+			}},
+			Media{Video: Video{
+				FrameRate: 10.0,
+			}},
+			true,
+		},
+		"FloatRangeMatch": {
+			MediaConstraints{VideoConstraints: VideoConstraints{
+				FrameRate: FloatRanged{Min: 30, Max: 40},
+			}},
+			Media{Video: Video{
+				FrameRate: 35.0,
+			}},
+			true,
+		},
+		"FloatRangeUnmatch": {
+			MediaConstraints{VideoConstraints: VideoConstraints{
+				FrameRate: FloatRanged{Min: 30, Max: 40},
+			}},
+			Media{Video: Video{
+				FrameRate: 50.0,
+			}},
+			false,
+		},
 		"FrameFormatOneOfUnmatch": {
 			MediaConstraints{VideoConstraints: VideoConstraints{
 				FrameFormat: FrameFormatOneOf{frame.FormatYUYV, frame.FormatUYVY},
@@ -366,3 +420,63 @@ func TestString(t *testing.T) {
 		})
 	})
 }
+
+func TestFrameRateProps(t *testing.T) {
+	testDataSet := map[string]struct {
+		a     MediaConstraints
+		b     Media
+		score float64
+		match bool
+	}{
+		"FrameRateIdealMatch": {
+			MediaConstraints{VideoConstraints: VideoConstraints{
+				FrameRate: Float(30.0),
+			}},
+			Media{Video: Video{
+				FrameRate: 30.0,
+			}},
+			0.0,
+			true,
+		},
+		"FrameRateIdealUnmatch": {
+			MediaConstraints{VideoConstraints: VideoConstraints{
+				FrameRate: Float(30.0),
+			}},
+			Media{Video: Video{
+				FrameRate: 60.0,
+			}},
+			0.5,
+			true,
+		},
+		"FrameRateConstraintMissing": {
+			// empty video fps constraint
+			MediaConstraints{VideoConstraints: VideoConstraints{}},
+			Media{Video: Video{
+				FrameRate: 30.0,
+			}},
+			0.0,
+			true,
+		},
+		"FrameRatePropMissing": {
+			MediaConstraints{VideoConstraints: VideoConstraints{
+				FrameRate: Float(30.0),
+			}},
+			// empty video fps property
+			Media{Video: Video{}},
+			0.0,
+			true,
+		},
+	}
+
+	for name, data := range testDataSet {
+		t.Run(name, func(t *testing.T) {
+			score, match := data.a.FitnessDistance(data.b)
+			if score != data.score {
+				t.Errorf("expected score %f, got %f", data.score, score)
+			}
+			if match != data.match {
+				t.Errorf("expected match %t, got %t", data.match, match)
+			}
+		})
+	}
+}
--- a/track.go
+++ b/track.go
@@ -83,6 +83,7 @@ type baseTrack struct {
 	Source
 	err                   error
 	onErrorHandler        func(error)
+	errMu                 sync.Mutex
 	mu                    sync.Mutex
 	endOnce               sync.Once
 	kind                  MediaDeviceType
@@ -129,10 +130,10 @@ func (track *baseTrack) RID() string {
 // OnEnded sets an error handler. When a track has been created and started, if an
 // error occurs, handler will get called with the error given to the parameter.
 func (track *baseTrack) OnEnded(handler func(error)) {
-	track.mu.Lock()
+	track.errMu.Lock()
 	track.onErrorHandler = handler
 	err := track.err
-	track.mu.Unlock()
+	track.errMu.Unlock()

 	if err != nil && handler != nil {
 		// Already errored.
@@ -144,10 +145,10 @@ func (track *baseTrack) OnEnded(handler func(error)) {

 // onError is a callback when an error occurs
 func (track *baseTrack) onError(err error) {
-	track.mu.Lock()
+	track.errMu.Lock()
 	track.err = err
 	handler := track.onErrorHandler
-	track.mu.Unlock()
+	track.errMu.Unlock()

 	if handler != nil {
 		track.endOnce.Do(func() {
@@ -171,6 +172,14 @@ func (track *baseTrack) bind(ctx webrtc.TrackLocalContext, specializedTrack Trac
 	for _, wantedCodec := range ctx.CodecParameters() {
 		logger.Debugf("trying to build %s rtp reader", wantedCodec.MimeType)
 		encodedReader, err = specializedTrack.NewRTPReader(wantedCodec.MimeType, uint32(ctx.SSRC()), rtpOutboundMTU)
+
+		track.errMu.Lock()
+		if track.err != nil {
+			err = track.err
+			encodedReader = nil
+		}
+		track.errMu.Unlock()
+
 		if err == nil {
 			selectedCodec = wantedCodec
 			break
--- a/track_test.go
+++ b/track_test.go
@@ -2,14 +2,33 @@ package mediadevices

 import (
 	"errors"
-	"github.com/pion/interceptor"
 	"io"
+	"sync"
 	"testing"
 	"time"
+
+	"github.com/pion/interceptor"
+	"github.com/pion/webrtc/v3"
 )

+var errExpected error = errors.New("an error")
+
+type DummyBindTrack struct {
+	*baseTrack
+}
+
+func (track *DummyBindTrack) Bind(ctx webrtc.TrackLocalContext) (webrtc.RTPCodecParameters, error) {
+	track.mu.Lock()
+	defer track.mu.Unlock()
+
+	track.onError(errExpected)
+
+	<-time.After(5 * time.Millisecond)
+
+	return webrtc.RTPCodecParameters{}, nil
+}
+
 func TestOnEnded(t *testing.T) {
-	errExpected := errors.New("an error")

 	t.Run("ErrorAfterRegister", func(t *testing.T) {
 		tr := &baseTrack{}
@@ -54,6 +73,34 @@ func TestOnEnded(t *testing.T) {
 			t.Error("Timeout")
 		}
 	})
+
+	t.Run("ErrorDurringBind", func(t *testing.T) {
+		tr := &DummyBindTrack{
+			baseTrack: &baseTrack{
+				activePeerConnections: make(map[string]chan<- chan<- struct{}),
+				mu:                    sync.Mutex{},
+			},
+		}
+
+		called := make(chan error, 1)
+		tr.OnEnded(func(err error) {
+			called <- errExpected
+		})
+
+		_, err := tr.Bind(webrtc.TrackLocalContext{})
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		select {
+		case err := <-called:
+			if err != errExpected {
+				t.Errorf("Expected to receive error: %v, got: %v", errExpected, err)
+			}
+		case <-time.After(10 * time.Millisecond):
+			t.Error("Timeout")
+		}
+	})
 }

 type fakeRTCPReader struct {
Author	SHA1	Message	Date
Atsushi Watanabe	72c1d7bb89	Fix invalid memory access in ScalerFastBoxSampling (#513 ) [src-px]->[dst-px] of 4x1px to 2x1px scaling was 0->0, 1->1, 2->1, 3->2(out of bounds) Fix it to be 0->0, 1->0, 2->1, 3->1	2023-07-05 12:01:40 +09:00
Atsushi Watanabe	fc301a8a92	Cache local brew taps on self-hosted darwin runner (#514 )	2023-07-05 12:01:26 +09:00
renovate[bot]	aca3ee9126	fix(deps): update module github.com/pion/webrtc/v3 to v3.2.11 Generated by Renovate Bot	2023-07-05 11:19:55 +09:00
renovate[bot]	4924411e88	fix(deps): update github.com/blackjack/webcam digest to 87693b3 Generated by Renovate Bot	2023-07-05 10:19:20 +09:00
renovate[bot]	b88f541c4f	fix(deps): update module golang.org/x/image to v0.8.0 Generated by Renovate Bot	2023-07-05 10:18:08 +09:00
aljanabim	09f6bdeac4	Added Name in driver.Info to Microphone driver	2023-06-12 11:41:34 +09:00
Ryan Boring	e64f0d8697	Replace YUY2 with YUYV for Mac	2023-06-05 12:37:57 -04:00
Ryan Boring	36f908c6e2	Fix stale links	2023-06-05 12:37:57 -04:00
Ryan Boring	9987e01d3f	Add YUYV to supported video formats	2023-06-05 12:37:57 -04:00
renovate[bot]	ae173b1b61	fix(deps): update module github.com/stretchr/testify to v1.8.4 Generated by Renovate Bot	2023-06-05 12:04:03 +09:00
Alex Harvey	4eea55285e	Update README.md to include mention of GetDisplayMedia Added to the FAQ to mention GetDisplayMedia if using driver/screen in the section explaining solutions to the error that gets throne if you don't make that swap in example code.	2023-06-05 12:01:48 +09:00
renovate[bot]	18cf1fe38a	fix(deps): update module github.com/pion/webrtc/v3 to v3.2.6 Generated by Renovate Bot	2023-05-22 18:15:33 +09:00
seanavery	138499b52d	Support fps props for linux cams	2023-05-16 14:25:02 -04:00
renovate[bot]	87486146d5	fix(deps): update module github.com/pion/interceptor to v0.1.16 Generated by Renovate Bot	2023-05-05 18:46:45 +02:00
Clyde Bazile	cadb155755	update test	2023-04-24 11:14:58 -04:00
Clyde Bazile	2372f55064	comments: var block + interface-less error	2023-04-24 11:14:58 -04:00
Clyde Bazile	8568b1b20d	do not change other classes	2023-04-24 11:14:58 -04:00
Steffen Vogel	f0f6be7350	Fix README section levels	2023-04-18 12:12:53 +02:00
Steffen Vogel	8146e84f2f	Harmonize sections in README	2023-04-18 12:12:53 +02:00
Steffen Vogel	4ff24bd656	Harmonize section levels	2023-04-18 12:12:53 +02:00
Steffen Vogel	64dbe507f0	Rephrase relation to webrtc repo	2023-04-18 12:12:53 +02:00
Steffen Vogel	dffaf0fcb4	Harmonize RFC section and links	2023-04-18 12:12:53 +02:00
Steffen Vogel	d3adaeea1a	Cleanup common sections in README	2023-04-18 12:12:53 +02:00
Steffen Vogel	7a414948c6	Cleanup badges in README	2023-04-18 12:12:53 +02:00
renovate[bot]	e1616b8cc2	Update module golang.org/x/image to v0.7.0 (#489 ) Generated by Renovate Bot Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2023-04-18 13:10:51 +09:00
Kim Mishra	52a080b55a	add link to comment	2023-04-17 23:51:01 -04:00
Kim Mishra	c2fe66c579	t.Errorf -> t.Fatalf	2023-04-17 23:51:01 -04:00
Kim Mishra	ac50077e77	addressing PR reviews	2023-04-17 23:51:01 -04:00
kim-mishra	2f5c61e1f3	Update compressed.go	2023-04-17 23:51:01 -04:00
Kim Mishra	0715258726	check if error is format error	2023-04-17 23:51:01 -04:00
Kim Mishra	bccff100e5	addressing PR reviews	2023-04-17 23:51:01 -04:00
Kim Mishra	0507093a59	check if huffman table error occurred, and if so add in necessary data	2023-04-17 23:51:01 -04:00
Abdarrakhman Akhmetgali	bf290b026c	fix i422ToI420 calculation, add mock FastBoxSampling	2023-04-15 08:19:04 -04:00
Abdarrakhman Akhmetgali	0dc4f43c94	fix cLen in nocgo implementation of i444Toi420	2023-04-15 08:19:04 -04:00
Clyde Bazile	14bfaa5dbd	Update pkg/driver/camera/camera_linux.go Co-authored-by: Eric Daniels <eric@erdaniels.com>	2023-04-12 14:07:14 -04:00
Clyde Bazile	09c31a264c	expose device name and bus info	2023-04-12 14:07:14 -04:00
renovate[bot]	30badd819d	Update module github.com/pion/webrtc/v3 to v3.1.59 Generated by Renovate Bot	2023-04-06 22:50:50 -04:00
martha-johnston	dc8aeea11f	remove name from linux driver info	2023-03-31 16:54:09 -04:00
martha-johnston	57c9ba0fc5	reveal Name var for driver.info	2023-03-31 16:54:09 -04:00
Clyde Bazile	b9ce5bb861	change buffer size to 2 (#482 )	2023-03-29 17:42:58 -04:00
Clyde Bazile	e4ac96ea6b	Handle race conditions + add test for Manager.Register (#485 )	2023-03-27 10:13:23 +09:00
renovate[bot]	11bf55f80c	Update actions/setup-go action to v4 (#483 ) Generated by Renovate Bot Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2023-03-20 09:32:50 +09:00
martha-johnston	55881ddd41	When finding cameras on linux systems, look at camera ID before path or video* (#476 )	2023-03-07 15:58:22 -05:00
Clyde Bazile	62009a882b	discard buffered frames for < 1fps (#470 )	2023-03-06 16:52:59 -05:00
Abdarrakhman Akhmetgali	dbd37689e4	Optimize ToI420 conversion by using sync.Pool (#473 ) Added sync.Pool to the i420 conversion to minimize overhead of creating new byte slices	2023-03-06 15:53:44 -05:00
renovate[bot]	d561715bf9	Update module golang.org/x/image to v0.5.0 [SECURITY] (#472 ) Generated by Renovate Bot Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2023-03-03 10:51:29 -05:00
renovate[bot]	76ba048312	Update module golang.org/x/image to v0.3.0 (#469 ) Generated by Renovate Bot Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>	2023-02-01 13:51:26 +09:00
Kyle	5da0ebf443	Fix deadlock in track.Bind() (#466 ) Occurs when read errors happen from a driver source during a call to track.Bind()	2023-01-23 10:00:20 +09:00