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https://github.com/oxen-io/session-android.git
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Modify upstream webrtc NetEq to pass bounds information to speex
Just in case Closes #6334 // FREEBIE
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@ -102,12 +102,14 @@ int AudioCodec::encode(short *rawData, char* encodedData, int maxEncodedDataLen)
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return speex_bits_write(&enc_bits, encodedData, maxEncodedDataLen);
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}
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int AudioCodec::decode(char* encodedData, int encodedDataLen, short *rawData) {
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int rawDataOffset = 0;
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int AudioCodec::decode(char* encodedData, int encodedDataLen, short *rawData, size_t decodeMaxSize) {
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uint32_t rawDataOffset = 0;
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speex_bits_read_from(&dec_bits, encodedData, encodedDataLen);
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while (speex_decode_int(dec, &dec_bits, rawData + rawDataOffset) == 0) { // TODO bounds?
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while ((rawDataOffset + dec_frame_size <= decodeMaxSize) &&
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(speex_decode_int(dec, &dec_bits, rawData + rawDataOffset) == 0))
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{
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WebRtcAecm_BufferFarend(aecm, rawData + rawDataOffset, dec_frame_size);
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rawDataOffset += dec_frame_size;
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}
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@ -36,7 +36,7 @@ public:
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int init();
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int encode(short *rawData, char* encodedData, int encodedDataLen);
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int decode(char* encodedData, int encodedDataLen, short* rawData);
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int decode(char* encodedData, int encodedDataLen, short* rawData, size_t decodeMaxSize);
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int conceal(int frames, short *rawData);
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};
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@ -17,10 +17,11 @@ public:
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{}
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int Decode(const uint8_t* encoded, size_t encoded_len,
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int16_t* decoded, SpeechType* speech_type)
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int16_t* decoded, size_t decodedMaxSize,
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SpeechType* speech_type)
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{
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*speech_type = kSpeech;
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return codec.decode((char*)encoded, encoded_len, decoded);
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return codec.decode((char*)encoded, encoded_len, decoded, decodedMaxSize);
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}
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bool HasDecodePlc() const {
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@ -19,8 +19,9 @@ namespace webrtc {
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int AudioDecoder::DecodeRedundant(const uint8_t* encoded,
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size_t encoded_len,
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int16_t* decoded,
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size_t maxDecodedSize,
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SpeechType* speech_type) {
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return Decode(encoded, encoded_len, decoded, speech_type);
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return Decode(encoded, encoded_len, decoded, maxDecodedSize, speech_type);
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}
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bool AudioDecoder::HasDecodePlc() const { return false; }
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@ -56,48 +57,6 @@ NetEqDecoder AudioDecoder::codec_type() const { return codec_type_; }
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bool AudioDecoder::CodecSupported(NetEqDecoder codec_type) {
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switch (codec_type) {
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case kDecoderPCMu:
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case kDecoderPCMa:
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case kDecoderPCMu_2ch:
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case kDecoderPCMa_2ch:
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#ifdef WEBRTC_CODEC_ILBC
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case kDecoderILBC:
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#endif
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#if defined(WEBRTC_CODEC_ISACFX) || defined(WEBRTC_CODEC_ISAC)
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case kDecoderISAC:
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#endif
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#ifdef WEBRTC_CODEC_ISAC
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case kDecoderISACswb:
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case kDecoderISACfb:
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#endif
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#ifdef WEBRTC_CODEC_PCM16
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case kDecoderPCM16B:
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case kDecoderPCM16Bwb:
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case kDecoderPCM16Bswb32kHz:
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case kDecoderPCM16Bswb48kHz:
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case kDecoderPCM16B_2ch:
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case kDecoderPCM16Bwb_2ch:
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case kDecoderPCM16Bswb32kHz_2ch:
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case kDecoderPCM16Bswb48kHz_2ch:
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case kDecoderPCM16B_5ch:
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#endif
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#ifdef WEBRTC_CODEC_G722
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case kDecoderG722:
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case kDecoderG722_2ch:
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#endif
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#ifdef WEBRTC_CODEC_CELT
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case kDecoderCELT_32:
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case kDecoderCELT_32_2ch:
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#endif
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#ifdef WEBRTC_CODEC_OPUS
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case kDecoderOpus:
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case kDecoderOpus_2ch:
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#endif
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case kDecoderRED:
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case kDecoderAVT:
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case kDecoderCNGnb:
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case kDecoderCNGwb:
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case kDecoderCNGswb32kHz:
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case kDecoderCNGswb48kHz:
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case kDecoderArbitrary: {
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return true;
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}
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@ -182,65 +141,6 @@ AudioDecoder* AudioDecoder::CreateAudioDecoder(NetEqDecoder codec_type) {
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switch (codec_type) {
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case kDecoderPCMu:
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return new AudioDecoderPcmU;
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case kDecoderPCMa:
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return new AudioDecoderPcmA;
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case kDecoderPCMu_2ch:
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return new AudioDecoderPcmUMultiCh(2);
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case kDecoderPCMa_2ch:
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return new AudioDecoderPcmAMultiCh(2);
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#ifdef WEBRTC_CODEC_ILBC
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case kDecoderILBC:
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return new AudioDecoderIlbc;
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#endif
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#if defined(WEBRTC_CODEC_ISACFX)
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case kDecoderISAC:
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return new AudioDecoderIsacFix;
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#elif defined(WEBRTC_CODEC_ISAC)
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case kDecoderISAC:
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return new AudioDecoderIsac;
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#endif
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#ifdef WEBRTC_CODEC_ISAC
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case kDecoderISACswb:
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return new AudioDecoderIsacSwb;
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case kDecoderISACfb:
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return new AudioDecoderIsacFb;
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#endif
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#ifdef WEBRTC_CODEC_PCM16
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case kDecoderPCM16B:
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case kDecoderPCM16Bwb:
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case kDecoderPCM16Bswb32kHz:
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case kDecoderPCM16Bswb48kHz:
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return new AudioDecoderPcm16B(codec_type);
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case kDecoderPCM16B_2ch:
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case kDecoderPCM16Bwb_2ch:
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case kDecoderPCM16Bswb32kHz_2ch:
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case kDecoderPCM16Bswb48kHz_2ch:
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case kDecoderPCM16B_5ch:
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return new AudioDecoderPcm16BMultiCh(codec_type);
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#endif
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#ifdef WEBRTC_CODEC_G722
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case kDecoderG722:
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return new AudioDecoderG722;
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case kDecoderG722_2ch:
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return new AudioDecoderG722Stereo;
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#endif
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#ifdef WEBRTC_CODEC_CELT
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case kDecoderCELT_32:
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case kDecoderCELT_32_2ch:
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return new AudioDecoderCelt(codec_type);
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#endif
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#ifdef WEBRTC_CODEC_OPUS
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case kDecoderOpus:
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case kDecoderOpus_2ch:
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return new AudioDecoderOpus(codec_type);
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#endif
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case kDecoderCNGnb:
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case kDecoderCNGwb:
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case kDecoderCNGswb32kHz:
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case kDecoderCNGswb48kHz:
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return new AudioDecoderCng(codec_type);
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case kDecoderRED:
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case kDecoderAVT:
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case kDecoderArbitrary:
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default: {
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return NULL;
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@ -41,7 +41,8 @@ namespace webrtc {
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// PCMu
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int AudioDecoderPcmU::Decode(const uint8_t* encoded, size_t encoded_len,
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int16_t* decoded, SpeechType* speech_type) {
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int16_t* decoded, size_t decodedSize,
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SpeechType* speech_type) {
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int16_t temp_type = 1; // Default is speech.
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int16_t ret = WebRtcG711_DecodeU(
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state_, reinterpret_cast<int16_t*>(const_cast<uint8_t*>(encoded)),
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@ -28,7 +28,8 @@ class AudioDecoderPcmU : public AudioDecoder {
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public:
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AudioDecoderPcmU() : AudioDecoder(kDecoderPCMu) {}
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virtual int Decode(const uint8_t* encoded, size_t encoded_len,
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int16_t* decoded, SpeechType* speech_type);
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int16_t* decoded, size_t decodedSize,
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SpeechType* speech_type);
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virtual int Init() { return 0; }
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virtual int PacketDuration(const uint8_t* encoded, size_t encoded_len);
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@ -76,12 +76,14 @@ class AudioDecoder {
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// the return value. If the decoder produced comfort noise, |speech_type|
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// is set to kComfortNoise, otherwise it is kSpeech.
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virtual int Decode(const uint8_t* encoded, size_t encoded_len,
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int16_t* decoded, SpeechType* speech_type) = 0;
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int16_t* decoded, size_t decoded_size,
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SpeechType* speech_type) = 0;
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// Same as Decode(), but interfaces to the decoders redundant decode function.
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// The default implementation simply calls the regular Decode() method.
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virtual int DecodeRedundant(const uint8_t* encoded, size_t encoded_len,
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int16_t* decoded, SpeechType* speech_type);
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int16_t* decoded, size_t decoded_size,
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SpeechType* speech_type);
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// Indicates if the decoder implements the DecodePlc method.
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virtual bool HasDecodePlc() const;
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@ -1253,7 +1253,7 @@ int NetEqImpl::DecodeLoop(PacketList* packet_list, Operations* operation,
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", len=" << packet->payload_length;
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decode_length = decoder->DecodeRedundant(
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packet->payload, packet->payload_length,
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&decoded_buffer_[*decoded_length], speech_type);
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&decoded_buffer_[*decoded_length], decoded_buffer_length_ - *decoded_length, speech_type);
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} else {
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LOG(LS_VERBOSE) << "Decoding packet: ts=" << packet->header.timestamp <<
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", sn=" << packet->header.sequenceNumber <<
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@ -1263,6 +1263,7 @@ int NetEqImpl::DecodeLoop(PacketList* packet_list, Operations* operation,
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decode_length = decoder->Decode(packet->payload,
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packet->payload_length,
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&decoded_buffer_[*decoded_length],
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decoded_buffer_length_ - *decoded_length,
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speech_type);
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}
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@ -1591,7 +1592,7 @@ void NetEqImpl::DoCodecInternalCng() {
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if (decoder) {
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const uint8_t* dummy_payload = NULL;
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AudioDecoder::SpeechType speech_type;
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length = decoder->Decode(dummy_payload, 0, decoded_buffer, &speech_type);
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length = decoder->Decode(dummy_payload, 0, decoded_buffer, kMaxFrameSize, &speech_type);
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}
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assert(mute_factor_array_.get());
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normal_->Process(decoded_buffer, length, last_mode_, mute_factor_array_.get(),
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