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expand docs to clarify common mimetypes

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jade 2025-02-12 22:29:37 -05:00
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commit 54a9014cf7
3 changed files with 6 additions and 3 deletions
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2
docs/plugins/initialize-camera.md
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@ -22,7 +22,7 @@ button_label | string | 'Use this camera.' | The label for the select button.
include_audio | bool | false | Set to `true` to include an audio track in the recordings. include_audio | bool | false | Set to `true` to include an audio track in the recordings.
width | int | null | Request a specific width for the recording. This is not a guarantee that this width will be used, as it depends on the capabilities of the participant's device. Learn more about `MediaRecorder` constraints [here](https://developer.mozilla.org/en-US/docs/Web/API/Media_Streams_API/Constraints#requesting_a_specific_value_for_a_setting). width | int | null | Request a specific width for the recording. This is not a guarantee that this width will be used, as it depends on the capabilities of the participant's device. Learn more about `MediaRecorder` constraints [here](https://developer.mozilla.org/en-US/docs/Web/API/Media_Streams_API/Constraints#requesting_a_specific_value_for_a_setting).
height | int | null | Request a specific height for the recording. This is not a guarantee that this height will be used, as it depends on the capabilities of the participant's device. Learn more about `MediaRecorder` constraints [here](https://developer.mozilla.org/en-US/docs/Web/API/Media_Streams_API/Constraints#requesting_a_specific_value_for_a_setting). height | int | null | Request a specific height for the recording. This is not a guarantee that this height will be used, as it depends on the capabilities of the participant's device. Learn more about `MediaRecorder` constraints [here](https://developer.mozilla.org/en-US/docs/Web/API/Media_Streams_API/Constraints#requesting_a_specific_value_for_a_setting).
mime_type | string | null | Set this to use a specific [MIME type](https://developer.mozilla.org/en-US/docs/Web/API/MediaRecorder/mimeType) for the recording. Set the entire type, e.g., `'video/mp4; codecs="avc1.424028, mp4a.40.2"'`. mime_type | string | null | Set this to use a specific [MIME type](https://developer.mozilla.org/en-US/docs/Web/API/MediaRecorder/mimeType) for the recording. Set the entire type, e.g., `'video/mp4; codecs="avc1.424028, mp4a.40.2"'`. When provided with the default value of `null`, jsPsych will search for a compatible container/codec combination, with [common types listed here](../reference/jspsych-pluginAPI.md#initializecamerarecorder). If none are found, jsPsych will default to `'video/webm'` as the MIME type.
## Data Generated ## Data Generated

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docs/reference/jspsych-pluginAPI.md
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@ -507,7 +507,10 @@ None.
#### Description #### Description
Generates a `MediaRecorder` object from provided `MediaStream` and stores this for access via [`getCameraRecorder()`](#getcamerarecorder). By default, `mimeType` is set to `"video/webm"`. Generates a `MediaRecorder` object from provided `MediaStream` and stores this for access via [`getCameraRecorder()`](#getcamerarecorder). By default, `mimeType` is set to the first compatible container/codec combination found in a list of common types, or `"video/webm"` if no supported combination is found.
The common container/codec combinations that jsPsych checks for are `"video/webm;codecs=vp9,opus"`, `"video/webm;codecs=vp8,opus"`, `"video/mp4;codecs=avc1.42E01E,mp4a.40.2"`, `"video/mp4;codecs=h264,aac"`, and `"video/mp4;codecs=hevc,aac"`.
#### Example #### Example
```javascript ```javascript

2
packages/jspsych/src/modules/plugin-api/MediaAPI.ts
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@ -303,7 +303,7 @@ export class MediaAPI {
"video/webm;codecs=vp9,opus", "video/webm;codecs=vp9,opus",
"video/webm;codecs=vp8,opus", "video/webm;codecs=vp8,opus",
// general // general
'video/mp4; codecs="avc1.42E01E, mp4a.40.2"', "video/mp4;codecs=avc1.42E01E,mp4a.40.2",
// safari // safari
"video/mp4;codecs=h264,aac", "video/mp4;codecs=h264,aac",
"video/mp4;codecs=hevc,aac", "video/mp4;codecs=hevc,aac",