/* * Copyright (C) 2016 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.google.android.exoplayer2; import com.google.android.exoplayer2.util.Util; import android.media.AudioFormat; import android.media.MediaCodec; import android.view.Surface; import java.util.UUID; /** * Defines constants that are generally useful throughout the library. */ public interface C { /** * Special microsecond constant representing the end of a source. */ long END_OF_SOURCE_US = Long.MIN_VALUE; /** * Special microsecond constant representing an unset or unknown time or duration. */ long UNSET_TIME_US = Long.MIN_VALUE + 1; /** * The number of microseconds in one second. */ long MICROS_PER_SECOND = 1000000L; /** * The number of nanoseconds in one second. */ long NANOS_PER_SECOND = 1000000000L; /** * Represents an unbounded length of data. */ int LENGTH_UNBOUNDED = -1; /** * The name of the UTF-8 charset. */ String UTF8_NAME = "UTF-8"; /** * @see MediaCodec#CRYPTO_MODE_AES_CTR */ @SuppressWarnings("InlinedApi") int CRYPTO_MODE_AES_CTR = MediaCodec.CRYPTO_MODE_AES_CTR; /** * @see AudioFormat#ENCODING_INVALID */ int ENCODING_INVALID = AudioFormat.ENCODING_INVALID; /** * @see AudioFormat#ENCODING_PCM_8BIT */ int ENCODING_PCM_8BIT = AudioFormat.ENCODING_PCM_8BIT; /** * @see AudioFormat#ENCODING_PCM_16BIT */ int ENCODING_PCM_16BIT = AudioFormat.ENCODING_PCM_16BIT; /** * PCM encoding with 24 bits per sample. */ int ENCODING_PCM_24BIT = 0x80000000; /** * PCM encoding with 32 bits per sample. */ int ENCODING_PCM_32BIT = 0x40000000; /** * @see AudioFormat#ENCODING_AC3 */ @SuppressWarnings("InlinedApi") int ENCODING_AC3 = AudioFormat.ENCODING_AC3; /** * @see AudioFormat#ENCODING_E_AC3 */ @SuppressWarnings("InlinedApi") int ENCODING_E_AC3 = AudioFormat.ENCODING_E_AC3; /** * @see AudioFormat#ENCODING_DTS */ @SuppressWarnings("InlinedApi") int ENCODING_DTS = AudioFormat.ENCODING_DTS; /** * @see AudioFormat#ENCODING_DTS_HD */ @SuppressWarnings("InlinedApi") int ENCODING_DTS_HD = AudioFormat.ENCODING_DTS_HD; /** * @see AudioFormat#CHANNEL_OUT_7POINT1_SURROUND */ @SuppressWarnings({"InlinedApi", "deprecation"}) int CHANNEL_OUT_7POINT1_SURROUND = Util.SDK_INT < 23 ? AudioFormat.CHANNEL_OUT_7POINT1 : AudioFormat.CHANNEL_OUT_7POINT1_SURROUND; /** * Indicates that a buffer holds a synchronization sample. */ @SuppressWarnings("InlinedApi") int BUFFER_FLAG_KEY_FRAME = MediaCodec.BUFFER_FLAG_KEY_FRAME; /** * Flag for empty buffers that signal that the end of the stream was reached. */ @SuppressWarnings("InlinedApi") int BUFFER_FLAG_END_OF_STREAM = MediaCodec.BUFFER_FLAG_END_OF_STREAM; /** * Indicates that a buffer is (at least partially) encrypted. */ int BUFFER_FLAG_ENCRYPTED = 0x40000000; /** * Indicates that a buffer should be decoded but not rendered. */ int BUFFER_FLAG_DECODE_ONLY = 0x80000000; /** * A return value for methods where the end of an input was encountered. */ int RESULT_END_OF_INPUT = -1; /** * A return value for methods where the length of parsed data exceeds the maximum length allowed. */ int RESULT_MAX_LENGTH_EXCEEDED = -2; /** * A return value for methods where nothing was read. */ int RESULT_NOTHING_READ = -3; /** * A return value for methods where a buffer was read. */ int RESULT_BUFFER_READ = -4; /** * A return value for methods where a format was read. */ int RESULT_FORMAT_READ = -5; /** * A data type constant for data of unknown or unspecified type. */ int DATA_TYPE_UNKNOWN = 0; /** * A data type constant for media, typically containing media samples. */ int DATA_TYPE_MEDIA = 1; /** * A data type constant for media, typically containing only initialization data. */ int DATA_TYPE_MEDIA_INITIALIZATION = 2; /** * A data type constant for drm or encryption data. */ int DATA_TYPE_DRM = 3; /** * A data type constant for a manifest file. */ int DATA_TYPE_MANIFEST = 4; /** * A data type constant for time synchronization data. */ int DATA_TYPE_TIME_SYNCHRONIZATION = 5; /** * Applications or extensions may define custom {@code DATA_TYPE_*} constants greater than or * equal to this value. */ int DATA_TYPE_CUSTOM_BASE = 10000; /** * A type constant for tracks of unknown type. */ int TRACK_TYPE_UNKNOWN = -1; /** * A type constant for tracks of some default type, where the type itself is unknown. */ int TRACK_TYPE_DEFAULT = 0; /** * A type constant for audio tracks. */ int TRACK_TYPE_AUDIO = 1; /** * A type constant for video tracks. */ int TRACK_TYPE_VIDEO = 2; /** * A type constant for text tracks. */ int TRACK_TYPE_TEXT = 3; /** * A type constant for metadata tracks. */ int TRACK_TYPE_METADATA = 4; /** * A default size in bytes for an individual allocation that forms part of a larger buffer. */ int DEFAULT_BUFFER_SEGMENT_SIZE = 64 * 1024; /** * A default size in bytes for a video buffer. */ int DEFAULT_VIDEO_BUFFER_SIZE = 200 * DEFAULT_BUFFER_SEGMENT_SIZE; /** * A default size in bytes for an audio buffer. */ int DEFAULT_AUDIO_BUFFER_SIZE = 54 * DEFAULT_BUFFER_SEGMENT_SIZE; /** * A default size in bytes for a text buffer. */ int DEFAULT_TEXT_BUFFER_SIZE = 2 * DEFAULT_BUFFER_SEGMENT_SIZE; /** * A default size in bytes for a metadata buffer. */ int DEFAULT_METADATA_BUFFER_SIZE = 2 * DEFAULT_BUFFER_SEGMENT_SIZE; /** * A default size in bytes for a muxed buffer (e.g. containing video, audio and text). */ int DEFAULT_MUXED_BUFFER_SIZE = DEFAULT_VIDEO_BUFFER_SIZE + DEFAULT_AUDIO_BUFFER_SIZE + DEFAULT_TEXT_BUFFER_SIZE; /** * The Nil UUID as defined by * RFC4122. */ UUID UUID_NIL = new UUID(0L, 0L); /** * UUID for the Widevine DRM scheme. *

* Widevine is supported on Android devices running Android 4.3 (API Level 18) and up. */ UUID WIDEVINE_UUID = new UUID(0xEDEF8BA979D64ACEL, 0xA3C827DCD51D21EDL); /** * UUID for the PlayReady DRM scheme. *

* PlayReady is supported on all AndroidTV devices. Note that most other Android devices do not * provide PlayReady support. */ UUID PLAYREADY_UUID = new UUID(0x9A04F07998404286L, 0xAB92E65BE0885F95L); /** * The type of a message that can be passed to a video {@link Renderer} via * {@link ExoPlayer#sendMessages} or {@link ExoPlayer#blockingSendMessages}. The message object * should be the target {@link Surface}, or null. */ int MSG_SET_SURFACE = 1; /** * The type of a message that can be passed to an audio {@link Renderer} via * {@link ExoPlayer#sendMessages} or {@link ExoPlayer#blockingSendMessages}. The message object * should be a {@link Float} with 0 being silence and 1 being unity gain. */ int MSG_SET_VOLUME = 2; /** * The type of a message that can be passed to an audio {@link Renderer} via * {@link ExoPlayer#sendMessages} or {@link ExoPlayer#blockingSendMessages}. The message object * should be a {@link android.media.PlaybackParams}, which will be used to configure the * underlying {@link android.media.AudioTrack}. The message object should not be modified by the * caller after it has been passed */ int MSG_SET_PLAYBACK_PARAMS = 3; /** * Applications or extensions may define custom {@code MSG_*} constants greater than or equal to * this value. */ int MSG_CUSTOM_BASE = 10000; }