MediaCodecInfo.CodecCapabilities.IsFormatSupported(MediaFormat) Method

Reference

Definition

Namespace:: Android.Media

Assembly:: Mono.Android.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Query whether codec supports a given MediaFormat.

[Android.Runtime.Register("isFormatSupported", "(Landroid/media/MediaFormat;)Z", "")]
public bool IsFormatSupported (Android.Media.MediaFormat? format);

[<Android.Runtime.Register("isFormatSupported", "(Landroid/media/MediaFormat;)Z", "")>]
member this.IsFormatSupported : Android.Media.MediaFormat -> bool

Parameters

format: MediaFormat

media format with optional feature directives.

Returns

Boolean

whether the codec capabilities support the given format and feature requests.

Attributes: RegisterAttribute

Remarks

Query whether codec supports a given MediaFormat.

Note: On android.os.Build.VERSION_CODES#LOLLIPOP, format must not contain a MediaFormat#KEY_FRAME_RATE frame rate. Use format.setString(MediaFormat.KEY_FRAME_RATE, null) to clear any existing frame rate setting in the format.

The following table summarizes the format keys considered by this method. This is especially important to consider when targeting a higher SDK version than the minimum SDK version, as this method will disregard some keys on devices below the target SDK version.

<table style="width: 0%"> <thead> <tr> <th rowspan=3>OS Version(s)</th> <td colspan=3>MediaFormat keys considered for</th> </tr><tr> <th>Audio Codecs</th> <th>Video Codecs</th> <th>Encoders</th> </tr> </thead> <tbody> <tr> <td>android.os.Build.VERSION_CODES#LOLLIPOP</td> <td rowspan=3>MediaFormat#KEY_MIME*, MediaFormat#KEY_SAMPLE_RATE, MediaFormat#KEY_CHANNEL_COUNT,</td> <td>MediaFormat#KEY_MIME*, CodecCapabilities#FEATURE_AdaptivePlaybackD, CodecCapabilities#FEATURE_SecurePlaybackD, CodecCapabilities#FEATURE_TunneledPlaybackD, MediaFormat#KEY_WIDTH, MediaFormat#KEY_HEIGHT, no KEY_FRAME_RATE</td> <td rowspan=10>as to the left, plus MediaFormat#KEY_BITRATE_MODE, MediaFormat#KEY_PROFILE (and/or MediaFormat#KEY_AAC_PROFILE~),  MediaFormat#KEY_COMPLEXITY (and/or MediaFormat#KEY_FLAC_COMPRESSION_LEVEL~)</td> </tr><tr> <td>android.os.Build.VERSION_CODES#LOLLIPOP_MR1</td> <td rowspan=2>as above, plus MediaFormat#KEY_FRAME_RATE</td> </tr><tr> <td>android.os.Build.VERSION_CODES#M</td> </tr><tr> <td>android.os.Build.VERSION_CODES#N</td> <td rowspan=2>as above, plus MediaFormat#KEY_PROFILE,  MediaFormat#KEY_BIT_RATE</td> <td rowspan=2>as above, plus MediaFormat#KEY_PROFILE, MediaFormat#KEY_LEVEL+,  MediaFormat#KEY_BIT_RATE, CodecCapabilities#FEATURE_IntraRefreshE</td> </tr><tr> <td>android.os.Build.VERSION_CODES#N_MR1</td> </tr><tr> <td>android.os.Build.VERSION_CODES#O</td> <td rowspan=3 colspan=2>as above, plus CodecCapabilities#FEATURE_PartialFrameD</td> </tr><tr> <td>android.os.Build.VERSION_CODES#O_MR1</td> </tr><tr> <td>android.os.Build.VERSION_CODES#P</td> </tr><tr> <td>android.os.Build.VERSION_CODES#Q</td> <td colspan=2>as above, plus CodecCapabilities#FEATURE_FrameParsingD, CodecCapabilities#FEATURE_MultipleFrames, CodecCapabilities#FEATURE_DynamicTimestamp</td> </tr><tr> <td>android.os.Build.VERSION_CODES#R</td> <td colspan=2>as above, plus CodecCapabilities#FEATURE_LowLatencyD</td> </tr> <tr> <td colspan=4> Notes: *: must be specified; otherwise, method returns false. +: method does not verify that the format parameters are supported by the specified level. D: decoders only E: encoders only ~: if both keys are provided values must match </td> </tr> </tbody> </table>

Java documentation for android.media.MediaCodecInfo.CodecCapabilities.isFormatSupported(android.media.MediaFormat).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Applies to

Aracılığıyla paylaş