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RTC: Refine code

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This commit is contained in:
winlin 2021-01-17 20:30:10 +08:00
parent ec2535b183
commit 1615c3df6c
4 changed files with 131 additions and 6 deletions
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32
trunk/src/kernel/srs_kernel_rtc_rtp.hpp
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@ -86,9 +86,12 @@ enum SrsRtpExtensionType
{
kRtpExtensionNone,
kRtpExtensionTransportSequenceNumber,
kRtpExtensionAudioLevel,
kRtpExtensionNumberOfExtensions // Must be the last entity in the enum.
};
const std::string kAudioLevelUri = "urn:ietf:params:rtp-hdrext:ssrc-audio-level";
struct SrsExtensionInfo
{
SrsRtpExtensionType type;
@ -96,7 +99,8 @@ struct SrsExtensionInfo
};
const SrsExtensionInfo kExtensions[] = {
{kRtpExtensionTransportSequenceNumber, std::string("http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01")}
{kRtpExtensionTransportSequenceNumber, std::string("http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01")},
{kRtpExtensionAudioLevel, kAudioLevelUri},
};
class SrsRtpExtensionTypes
@ -138,12 +142,34 @@ public:
virtual uint64_t nb_bytes();
};
class SrsRtpExtensionOneByte : public ISrsCodec
{
bool has_ext_;
int id_;
uint8_t value_;
public:
SrsRtpExtensionOneByte();
virtual ~SrsRtpExtensionOneByte() {}
bool exists() { return has_ext_; }
int get_id() { return id_; }
uint8_t get_value() { return value_; }
void set_id(int id);
void set_value(uint8_t value);
public:
// ISrsCodec
virtual srs_error_t decode(SrsBuffer* buf);
virtual srs_error_t encode(SrsBuffer* buf);
virtual uint64_t nb_bytes() { return 2; };
};
class SrsRtpExtensions : public ISrsCodec
{
private:
bool has_ext_;
SrsRtpExtensionTypes types_;
SrsRtpExtensionTwcc twcc_;
SrsRtpExtensionOneByte audio_level_;
public:
SrsRtpExtensions();
virtual ~SrsRtpExtensions();
@ -152,6 +178,8 @@ public:
void set_types_(const SrsRtpExtensionTypes* types);
srs_error_t get_twcc_sequence_number(uint16_t& twcc_sn);
srs_error_t set_twcc_sequence_number(uint8_t id, uint16_t sn);
srs_error_t get_audio_level(uint8_t& level);
srs_error_t set_audio_level(int id, uint8_t level);
// ISrsCodec
public:
@ -257,7 +285,7 @@ public:
// Whether the packet is Audio packet.
bool is_audio();
// Copy the RTP packet.
SrsRtpPacket2* copy();
virtual SrsRtpPacket2* copy();
// Set RTP header extensions for encoding or decoding header extension
void set_extension_types(const SrsRtpExtensionTypes* v);
// interface ISrsEncoder