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// Copyright 2020, Chef. All rights reserved.
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// https://github.com/q191201771/lal
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//
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// Use of this source code is governed by a MIT-style license
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// that can be found in the License file.
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//
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// Author: Chef (191201771@qq.com)
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package base
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import (
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"encoding/hex"
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"fmt"
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"github.com/q191201771/naza/pkg/nazabytes"
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)
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// ---------------------------------------------------------------------------------------------------------------------
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type AvPacketPt int
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const (
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AvPacketPtUnknown AvPacketPt = -1
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AvPacketPtG711A AvPacketPt = 8 // g711a
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AvPacketPtAvc AvPacketPt = 96 // h264
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AvPacketPtHevc AvPacketPt = 98 // h265
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AvPacketPtAac AvPacketPt = 97 // aac
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)
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func (a AvPacketPt) ReadableString() string {
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switch a {
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case AvPacketPtUnknown:
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return "unknown"
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case AvPacketPtAvc:
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return "h264"
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case AvPacketPtHevc:
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return "h265"
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case AvPacketPtAac:
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return "aac"
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}
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return ""
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}
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// ---------------------------------------------------------------------------------------------------------------------
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// AvPacket
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//
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// 不同场景使用时，字段含义可能不同。
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// 使用 AvPacket 的地方，应注明各字段的含义。
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type AvPacket struct {
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PayloadType AvPacketPt
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Timestamp int64 // 如无特殊说明，此字段是Dts
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Pts int64
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Payload []byte
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}
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func (packet *AvPacket) IsAudio() bool {
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return packet.PayloadType == AvPacketPtAac
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}
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func (packet *AvPacket) IsVideo() bool {
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return packet.PayloadType == AvPacketPtAvc || packet.PayloadType == AvPacketPtHevc
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}
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func (packet *AvPacket) DebugString() string {
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return fmt.Sprintf("[%p] type=%s, timestamp=%d, pts=%d, len=%d, payload=%s",
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packet, packet.PayloadType.ReadableString(), packet.Timestamp, packet.Pts, len(packet.Payload), hex.Dump(nazabytes.Prefix(packet.Payload, 8)))
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}
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// ---------------------------------------------------------------------------------------------------------------------
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type OnAvPacketFunc func(packet *AvPacket)
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