# MediaCodec.BufferInfo Added in[API level 16](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) # BufferInfo *** ** * ** *** Kotlin\|[Java](https://developer.android.com/reference/android/media/MediaCodec.BufferInfo "View this page in Java") ``` class BufferInfo ``` |---|----------------------------------------------------------------------------------------------------------------------------| | [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) || | ↳ | [android.media.MediaCodec.BufferInfo](https://developer.android.com/reference/kotlin/android/media/MediaCodec.BufferInfo#) | Per buffer metadata includes an offset and size specifying the range of valid data in the associated codec (output) buffer. ## Summary | Public constructors || |--------------------------------------------------------------------------------------------------------------------------|---| | [BufferInfo](https://developer.android.com/reference/kotlin/android/media/MediaCodec.BufferInfo#BufferInfo())`()`
| | Public methods || |------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [set](https://developer.android.com/reference/kotlin/android/media/MediaCodec.BufferInfo#set(kotlin.Int,%20kotlin.Int,%20kotlin.Long,%20kotlin.Int))`(`newOffset:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `newSize:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `newTimeUs:` `[Long](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-long/index.html)`, `newFlags:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Update the buffer metadata information. | | Properties || |------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [flags](https://developer.android.com/reference/kotlin/android/media/MediaCodec.BufferInfo#flags:kotlin.Int) Buffer flags associated with the buffer. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [offset](https://developer.android.com/reference/kotlin/android/media/MediaCodec.BufferInfo#offset:kotlin.Int) The start-offset of the data in the buffer. | | [Long](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-long/index.html) | [presentationTimeUs](https://developer.android.com/reference/kotlin/android/media/MediaCodec.BufferInfo#presentationTimeUs:kotlin.Long) The presentation timestamp in microseconds for the buffer. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [size](https://developer.android.com/reference/kotlin/android/media/MediaCodec.BufferInfo#size:kotlin.Int) The amount of data (in bytes) in the buffer. | ## Public constructors ### BufferInfo ``` BufferInfo() ``` ## Public methods ### set Added in[API level 16](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun set(     newOffset: Int,     newSize: Int,     newTimeUs: Long,     newFlags: Int ): Unit ``` Update the buffer metadata information. | Parameters || |-------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `newOffset` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):the start-offset of the data in the buffer. | | `newSize` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):the amount of data (in bytes) in the buffer. | | `newTimeUs` | [Long](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-long/index.html):the presentation timestamp in microseconds. | | `newFlags` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):buffer flags associated with the buffer. This should be a combination of[BUFFER_FLAG_KEY_FRAME](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_KEY_FRAME:kotlin.Int)and[BUFFER_FLAG_END_OF_STREAM](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_END_OF_STREAM:kotlin.Int). Value is either`0`or a combination of[android.media.MediaCodec#BUFFER_FLAG_SYNC_FRAME](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_SYNC_FRAME:kotlin.Int),[android.media.MediaCodec#BUFFER_FLAG_KEY_FRAME](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_KEY_FRAME:kotlin.Int),[android.media.MediaCodec#BUFFER_FLAG_CODEC_CONFIG](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_CODEC_CONFIG:kotlin.Int),[android.media.MediaCodec#BUFFER_FLAG_END_OF_STREAM](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_END_OF_STREAM:kotlin.Int),[android.media.MediaCodec#BUFFER_FLAG_PARTIAL_FRAME](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_PARTIAL_FRAME:kotlin.Int), android.media.MediaCodec.BUFFER_FLAG_MUXER_DATA, and[android.media.MediaCodec#BUFFER_FLAG_DECODE_ONLY](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_DECODE_ONLY:kotlin.Int) | ## Properties ### flags Added in[API level 16](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` var flags: Int ``` Buffer flags associated with the buffer. A combination of[BUFFER_FLAG_KEY_FRAME](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_KEY_FRAME:kotlin.Int)and[BUFFER_FLAG_END_OF_STREAM](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_END_OF_STREAM:kotlin.Int). Encoded buffers that are key frames are marked with[BUFFER_FLAG_KEY_FRAME](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_KEY_FRAME:kotlin.Int). The last output buffer corresponding to the input buffer marked with[BUFFER_FLAG_END_OF_STREAM](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_END_OF_STREAM:kotlin.Int)will also be marked with[BUFFER_FLAG_END_OF_STREAM](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_END_OF_STREAM:kotlin.Int). In some cases this could be an empty buffer, whose sole purpose is to carry the end-of-stream marker. Value is either`0`or a combination of[android.media.MediaCodec#BUFFER_FLAG_SYNC_FRAME](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_SYNC_FRAME:kotlin.Int),[android.media.MediaCodec#BUFFER_FLAG_KEY_FRAME](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_KEY_FRAME:kotlin.Int),[android.media.MediaCodec#BUFFER_FLAG_CODEC_CONFIG](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_CODEC_CONFIG:kotlin.Int),[android.media.MediaCodec#BUFFER_FLAG_END_OF_STREAM](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_END_OF_STREAM:kotlin.Int),[android.media.MediaCodec#BUFFER_FLAG_PARTIAL_FRAME](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_PARTIAL_FRAME:kotlin.Int), android.media.MediaCodec.BUFFER_FLAG_MUXER_DATA, and[android.media.MediaCodec#BUFFER_FLAG_DECODE_ONLY](https://developer.android.com/reference/kotlin/android/media/MediaCodec#BUFFER_FLAG_DECODE_ONLY:kotlin.Int) ### offset Added in[API level 16](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` var offset: Int ``` The start-offset of the data in the buffer. ### presentationTimeUs Added in[API level 16](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` var presentationTimeUs: Long ``` The presentation timestamp in microseconds for the buffer. This is derived from the presentation timestamp passed in with the corresponding input buffer. This should be ignored for a 0-sized buffer. ### size Added in[API level 16](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` var size: Int ``` The amount of data (in bytes) in the buffer. If this is`0`, the buffer has no data in it and can be discarded. The only use of a 0-size buffer is to carry the end-of-stream marker.