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Implementation for FEC decoder module

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This commit is contained in:
dijunkun
2023-11-15 22:01:05 -08:00
parent 31b5d7f2e3
commit b0bee226d1
12 changed files with 940 additions and 484 deletions
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46
src/rtp/rtp_packet.h
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@@ -63,7 +63,7 @@
// |F|NRI| Type |S|E|R| Type |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// H264 FEC
// H264 FEC source symbol
// 0 1 2 3
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
@@ -81,7 +81,33 @@
// | Extensions |x
// | .... |x
// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
// | FEC symbol id | |
// | FEC symbol id | src sym num | FU indicator | FU header |
// | |
// | FU Payload |
// | |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | padding | Padding size |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// H264 FEC repair symbol
// 0 1 2 3
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// |V=2|P|X| CC |M| PT | sequence number |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | timestamp |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | synchronization source (SSRC) identifier |
// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
// | Contributing source (CSRC) identifiers |x
// | .... |x
// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
// | defined by profile | length |x
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | Extensions |x
// | .... |x
// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
// | FEC symbol id | src sym num | |
// | |
// | Fec Payload |
// | |
@@ -96,7 +122,8 @@ class RtpPacket {
public:
typedef enum {
H264 = 96,
H264_FEC = 97,
H264_FEC_SOURCE = 97,
H264_FEC_REPAIR = 98,
OPUS = 111,
DATA = 127
} PAYLOAD_TYPE;
@@ -171,11 +198,17 @@ class RtpPacket {
const uint8_t *Encode(uint8_t *payload, size_t payload_size);
const uint8_t *EncodeH264Nalu(uint8_t *payload, size_t payload_size);
const uint8_t *EncodeH264Fua(uint8_t *payload, size_t payload_size);
const uint8_t *EncodeH264Fec(uint8_t *payload, size_t payload_size);
const uint8_t *EncodeH264FecSource(uint8_t *payload, size_t payload_size,
unsigned int fec_symbol_id,
unsigned int fec_source_symbol_num);
const uint8_t *EncodeH264FecRepair(uint8_t *payload, size_t payload_size,
unsigned int fec_symbol_id,
unsigned int fec_source_symbol_num);
size_t DecodeData(uint8_t *payload = nullptr);
size_t DecodeH264Nalu(uint8_t *payload = nullptr);
size_t DecodeH264Fua(uint8_t *payload = nullptr);
size_t DecodeH264Fec(uint8_t *payload = nullptr);
size_t DecodeH264FecSource(uint8_t *payload = nullptr);
size_t DecodeH264FecRepair(uint8_t *payload = nullptr);
public:
// Get Header
@@ -226,6 +259,8 @@ class RtpPacket {
const uint8_t FecSymbolId() { return fec_symbol_id_; }
const uint8_t FecSourceSymbolNum() { return fec_source_symbol_num_; }
// Payload
const uint8_t *Payload() {
ParseRtpData();
@@ -277,6 +312,7 @@ class RtpPacket {
FU_INDICATOR fu_indicator_;
FU_HEADER fu_header_;
uint8_t fec_symbol_id_ = 0;
uint8_t fec_source_symbol_num_ = 0;
// Payload
uint8_t *payload_ = nullptr;