harmony 鸿蒙avcodec_audio_channel_layout.h

  • 2023-10-30
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avcodec_audio_channel_layout.h

Overview

The avcodec_audio_channel_layout.h file declares the enums used for audio codec.

Since

9

Related Modules

AudioDecoder

Summary

Enums

Name Description
OHOS::Media::AudioChannelSet : uint64_t {
FRONT_LEFT = 1ULL << 0U, FRONT_RIGHT = 1ULL << 1U, FRONT_CENTER = 1ULL << 2U, LOW_FREQUENCY = 1ULL << 3U,
BACK_LEFT = 1ULL << 4U, BACK_RIGHT = 1ULL << 5U, FRONT_LEFT_OF_CENTER = 1ULL << 6U, FRONT_RIGHT_OF_CENTER = 1ULL << 7U,
BACK_CENTER = 1ULL << 8U, SIDE_LEFT = 1ULL << 9U, SIDE_RIGHT = 1ULL << 10U, TOP_CENTER = 1ULL << 11U,
TOP_FRONT_LEFT = 1ULL << 12U, TOP_FRONT_CENTER = 1ULL << 13U, TOP_FRONT_RIGHT = 1ULL << 14U, TOP_BACK_LEFT = 1ULL << 15U,
TOP_BACK_CENTER = 1ULL << 16U, TOP_BACK_RIGHT = 1ULL << 17U, STEREO_LEFT = 1ULL << 29U, STEREO_RIGHT = 1ULL << 30U,
WIDE_LEFT = 1ULL << 31U, WIDE_RIGHT = 1ULL << 32U, SURROUND_DIRECT_LEFT = 1ULL << 33U, SURROUND_DIRECT_RIGHT = 1ULL << 34U,
LOW_FREQUENCY_2 = 1ULL << 35U, TOP_SIDE_LEFT = 1ULL << 36U, TOP_SIDE_RIGHT = 1ULL << 37U, BOTTOM_FRONT_CENTER = 1ULL << 38U,
BOTTOM_FRONT_LEFT = 1ULL << 39U, BOTTOM_FRONT_RIGHT = 1ULL << 40U, AMBISONICS_ACN0 = 1ULL << 41U, OHOS::Media::AMBISONICS_ACN1 = 1ULL << 42U,
OHOS::Media::AMBISONICS_ACN2 = 1ULL << 43U, OHOS::Media::AMBISONICS_ACN3 = 1ULL << 44U, OHOS::Media::AMBISONICS_W = AMBISONICS_ACN0, OHOS::Media::AMBISONICS_Y = AMBISONICS_ACN1,
OHOS::Media::AMBISONICS_Z = AMBISONICS_ACN2, OHOS::Media::AMBISONICS_X = AMBISONICS_ACN3, OHOS::Media::AMBISONICS_ACN4 = 1ULL << 45U, OHOS::Media::AMBISONICS_ACN5 = 1ULL << 46U,
OHOS::Media::AMBISONICS_ACN6 = 1ULL << 47U, OHOS::Media::AMBISONICS_ACN7 = 1ULL << 48U, OHOS::Media::AMBISONICS_ACN8 = 1ULL << 49U, OHOS::Media::AMBISONICS_ACN9 = 1ULL << 50U,
OHOS::Media::AMBISONICS_ACN10 = 1ULL << 51U, OHOS::Media::AMBISONICS_ACN11 = 1ULL << 52U, OHOS::Media::AMBISONICS_ACN12 = 1ULL << 53U, OHOS::Media::AMBISONICS_ACN13 = 1ULL << 54U,
OHOS::Media::AMBISONICS_ACN14 = 1ULL << 55U, OHOS::Media::AMBISONICS_ACN15 = 1ULL << 56U
}
Enumerates the audio channel numbers. Each channel number is mapped to a variable of int64.
OHOS::Media::AudioChannelLayout : uint64_t {
UNKNOWN_CHANNEL_LAYOUT = 0, MONO = (AudioChannelSet::FRONT_CENTER), STEREO = (AudioChannelSet::FRONT_LEFT |AudioChannelSet::FRONT_RIGHT), CH_2POINT1 = (STEREO |AudioChannelSet::LOW_FREQUENCY),
CH_2_1 = (STEREO |AudioChannelSet::BACK_CENTER), SURROUND = (STEREO |AudioChannelSet::FRONT_CENTER), CH_3POINT1 = (SURROUND |AudioChannelSet::LOW_FREQUENCY), CH_4POINT0 = (SURROUND |AudioChannelSet::BACK_CENTER),
CH_4POINT1 = (CH_4POINT0 |AudioChannelSet::LOW_FREQUENCY), CH_2_2 = (STEREO |AudioChannelSet::SIDE_LEFT |AudioChannelSet::SIDE_RIGHT), QUAD = (STEREO |AudioChannelSet::BACK_LEFT |AudioChannelSet::BACK_RIGHT), CH_5POINT0 = (SURROUND |AudioChannelSet::SIDE_LEFT |AudioChannelSet::SIDE_RIGHT),
CH_5POINT1 = (CH_5POINT0 |AudioChannelSet::LOW_FREQUENCY), CH_5POINT0_BACK = (SURROUND |AudioChannelSet::BACK_LEFT |AudioChannelSet::BACK_RIGHT), CH_5POINT1_BACK = (CH_5POINT0_BACK |AudioChannelSet::LOW_FREQUENCY), CH_6POINT0 = (CH_5POINT0 |AudioChannelSet::BACK_CENTER),
CH_6POINT0_FRONT = (CH_2_2 |AudioChannelSet::FRONT_LEFT_OF_CENTER |AudioChannelSet::FRONT_RIGHT_OF_CENTER), HEXAGONAL = (CH_5POINT0_BACK |AudioChannelSet::BACK_CENTER), CH_6POINT1 = (CH_5POINT1 |AudioChannelSet::BACK_CENTER), CH_6POINT1_BACK = (CH_5POINT1_BACK |AudioChannelSet::BACK_CENTER),
CH_6POINT1_FRONT = (CH_6POINT0_FRONT |AudioChannelSet::LOW_FREQUENCY), CH_7POINT0 = (CH_5POINT0 |AudioChannelSet::BACK_LEFT |AudioChannelSet::BACK_RIGHT), CH_7POINT0_FRONT = (CH_5POINT0 |AudioChannelSet::FRONT_LEFT_OF_CENTER |AudioChannelSet::FRONT_RIGHT_OF_CENTER), CH_7POINT1 = (CH_5POINT1 |AudioChannelSet::BACK_LEFT |AudioChannelSet::BACK_RIGHT),
CH_7POINT1_WIDE = (CH_5POINT1 |AudioChannelSet::FRONT_LEFT_OF_CENTER |AudioChannelSet::FRONT_RIGHT_OF_CENTER), CH_7POINT1_WIDE_BACK, CH_3POINT1POINT2 = (CH_3POINT1 |AudioChannelSet::TOP_FRONT_LEFT |AudioChannelSet::TOP_FRONT_RIGHT), CH_5POINT1POINT2 = (CH_5POINT1 |AudioChannelSet::TOP_SIDE_LEFT |AudioChannelSet::TOP_SIDE_RIGHT),
CH_5POINT1POINT4, CH_7POINT1POINT2 = (CH_7POINT1 |AudioChannelSet::TOP_SIDE_LEFT |AudioChannelSet::TOP_SIDE_RIGHT), CH_7POINT1POINT4, CH_9POINT1POINT4 = (CH_7POINT1POINT4 |AudioChannelSet::WIDE_LEFT |AudioChannelSet::WIDE_RIGHT),
CH_9POINT1POINT6 = (CH_9POINT1POINT4 |AudioChannelSet::TOP_SIDE_LEFT |AudioChannelSet::TOP_SIDE_RIGHT), CH_10POINT2, CH_22POINT2, OCTAGONAL = (CH_5POINT0 |AudioChannelSet::BACK_LEFT |AudioChannelSet::BACK_CENTER |AudioChannelSet::BACK_RIGHT),
HEXADECAGONAL, STEREO_DOWNMIX = (AudioChannelSet::STEREO_LEFT |AudioChannelSet::STEREO_RIGHT), HOA_FIRST, HOA_SECOND,
HOA_THIRD
}
Enumerates the types of the audio channel numbers. The output format of the decoder is represented as the channel type of the codec.

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