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Removed virtual from several methods in DecoderDatabase to minimize

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the number of points that need to be mocked for testing.

For the now non-virtual methods, DecoderDatabase now does a lookup
through GetDecoderInfo and then delegates to the appropriate method in
the DecoderInfo object, if one is found.

A few other methods were also changed to look up through GetDecoderInfo.

Also moved the audio decoder factory into DecoderInfo, so that
DecoderInfo::GetDecoder can be used directly.

Review-Url: https://codereview.webrtc.org/2276913002
Cr-Commit-Position: refs/heads/master@{#13933}
This commit is contained in:
ossu
2016-08-26 05:41:23 -07:00
committed by Commit bot
parent c07c8bb626
commit 84bc98509b
5 changed files with 115 additions and 148 deletions
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68
webrtc/modules/audio_coding/neteq/decoder_database.h
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@ -41,7 +41,10 @@ class DecoderDatabase {
// Class that stores decoder info in the database.
class DecoderInfo {
public:
DecoderInfo(NetEqDecoder ct, const std::string& nm);
DecoderInfo(
NetEqDecoder ct,
const std::string& nm,
AudioDecoderFactory* factory = nullptr);
DecoderInfo(NetEqDecoder ct,
const std::string& nm,
AudioDecoder* ext_dec);
@ -49,11 +52,11 @@ class DecoderDatabase {
~DecoderInfo();
// Get the AudioDecoder object, creating it first if necessary.
AudioDecoder* GetDecoder(AudioDecoderFactory* factory);
AudioDecoder* GetDecoder() const;
// Delete the AudioDecoder object, unless it's external. (This means we can
// always recreate it later if we need it.)
void DropDecoder() { decoder_.reset(); }
void DropDecoder() const { decoder_.reset(); }
int SampleRateHz() const {
RTC_DCHECK_EQ(1, !!decoder_ + !!external_decoder_ + !!cng_decoder_);
@ -62,12 +65,22 @@ class DecoderDatabase {
: cng_decoder_->sample_rate_hz;
}
// Returns true if |codec_type| is comfort noise.
bool IsComfortNoise() const;
// Returns true if |codec_type| is DTMF.
bool IsDtmf() const;
// Returns true if |codec_type| is RED.
bool IsRed() const;
const NetEqDecoder codec_type;
const std::string name;
private:
const rtc::Optional<SdpAudioFormat> audio_format_;
std::unique_ptr<AudioDecoder> decoder_;
AudioDecoderFactory* factory_;
mutable std::unique_ptr<AudioDecoder> decoder_;
// Set iff this is an external decoder.
AudioDecoder* const external_decoder_;
@ -129,31 +142,13 @@ class DecoderDatabase {
// method may return any of them.
virtual uint8_t GetRtpPayloadType(NetEqDecoder codec_type) const;
// Returns a pointer to the AudioDecoder object associated with
// |rtp_payload_type|, or NULL if none is registered. If the AudioDecoder
// object does not exist for that decoder, the object is created.
virtual AudioDecoder* GetDecoder(uint8_t rtp_payload_type);
// Returns true if |rtp_payload_type| is registered as a |codec_type|.
virtual bool IsType(uint8_t rtp_payload_type,
NetEqDecoder codec_type) const;
// Returns true if |rtp_payload_type| is registered as comfort noise.
virtual bool IsComfortNoise(uint8_t rtp_payload_type) const;
// Returns true if |rtp_payload_type| is registered as DTMF.
virtual bool IsDtmf(uint8_t rtp_payload_type) const;
// Returns true if |rtp_payload_type| is registered as RED.
virtual bool IsRed(uint8_t rtp_payload_type) const;
// Sets the active decoder to be |rtp_payload_type|. If this call results in a
// change of active decoder, |new_decoder| is set to true. The previous active
// decoder's AudioDecoder object is deleted.
virtual int SetActiveDecoder(uint8_t rtp_payload_type, bool* new_decoder);
// Returns the current active decoder, or NULL if no active decoder exists.
virtual AudioDecoder* GetActiveDecoder();
virtual AudioDecoder* GetActiveDecoder() const;
// Sets the active comfort noise decoder to be |rtp_payload_type|. If this
// call results in a change of active comfort noise decoder, the previous
@ -162,11 +157,32 @@ class DecoderDatabase {
// Returns the current active comfort noise decoder, or NULL if no active
// comfort noise decoder exists.
virtual ComfortNoiseDecoder* GetActiveCngDecoder();
virtual ComfortNoiseDecoder* GetActiveCngDecoder() const;
// The following are utility methods: they will look up DecoderInfo through
// GetDecoderInfo and call the respective method on that info object, if it
// exists.
// Returns a pointer to the AudioDecoder object associated with
// |rtp_payload_type|, or NULL if none is registered. If the AudioDecoder
// object does not exist for that decoder, the object is created.
AudioDecoder* GetDecoder(uint8_t rtp_payload_type) const;
// Returns true if |rtp_payload_type| is registered as a |codec_type|.
bool IsType(uint8_t rtp_payload_type, NetEqDecoder codec_type) const;
// Returns true if |rtp_payload_type| is registered as comfort noise.
bool IsComfortNoise(uint8_t rtp_payload_type) const;
// Returns true if |rtp_payload_type| is registered as DTMF.
bool IsDtmf(uint8_t rtp_payload_type) const;
// Returns true if |rtp_payload_type| is registered as RED.
bool IsRed(uint8_t rtp_payload_type) const;
// Returns kOK if all packets in |packet_list| carry payload types that are
// registered in the database. Otherwise, returns kDecoderNotFound.
virtual int CheckPayloadTypes(const PacketList& packet_list) const;
int CheckPayloadTypes(const PacketList& packet_list) const;
private:
typedef std::map<uint8_t, DecoderInfo> DecoderMap;
@ -174,7 +190,7 @@ class DecoderDatabase {
DecoderMap decoders_;
int active_decoder_type_;
int active_cng_decoder_type_;
std::unique_ptr<ComfortNoiseDecoder> active_cng_decoder_;
mutable std::unique_ptr<ComfortNoiseDecoder> active_cng_decoder_;
rtc::scoped_refptr<AudioDecoderFactory> decoder_factory_;
RTC_DISALLOW_COPY_AND_ASSIGN(DecoderDatabase);