diff options
-rw-r--r-- | include/opus_defines.h | 11 | ||||
-rw-r--r-- | src/opus_encoder.c | 27 |
2 files changed, 38 insertions, 0 deletions
diff --git a/include/opus_defines.h b/include/opus_defines.h index fbf5d0eb..d141418b 100644 --- a/include/opus_defines.h +++ b/include/opus_defines.h @@ -168,6 +168,7 @@ extern "C" { /* Don't use 4045, it's already taken by OPUS_GET_GAIN_REQUEST */ #define OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST 4046 #define OPUS_GET_PHASE_INVERSION_DISABLED_REQUEST 4047 +#define OPUS_GET_IN_DTX_REQUEST 4049 /** Defines for the presence of extended APIs. */ #define OPUS_HAVE_OPUS_PROJECTION_H @@ -715,6 +716,16 @@ extern "C" { * </dl> * @hideinitializer */ #define OPUS_GET_PHASE_INVERSION_DISABLED(x) OPUS_GET_PHASE_INVERSION_DISABLED_REQUEST, __opus_check_int_ptr(x) +/** Gets the DTX state of the encoder. + * Returns whether the last encoded frame was either a comfort noise update + * during DTX or not encoded because of DTX. + * @param[out] x <tt>opus_int32 *</tt>: Returns one of the following values: + * <dl> + * <dt>0</dt><dd>The encoder is not in DTX.</dd> + * <dt>1</dt><dd>The encoder is in DTX.</dd> + * </dl> + * @hideinitializer */ +#define OPUS_GET_IN_DTX(x) OPUS_GET_IN_DTX_REQUEST, __opus_check_int_ptr(x) /**@}*/ diff --git a/src/opus_encoder.c b/src/opus_encoder.c index 2768aa37..e98ac5b8 100644 --- a/src/opus_encoder.c +++ b/src/opus_encoder.c @@ -2727,6 +2727,33 @@ int opus_encoder_ctl(OpusEncoder *st, int request, ...) ret = celt_encoder_ctl(celt_enc, OPUS_SET_ENERGY_MASK(value)); } break; + case OPUS_GET_IN_DTX_REQUEST: + { + opus_int32 *value = va_arg(ap, opus_int32*); + if (!value) + { + goto bad_arg; + } + if (st->silk_mode.useDTX && (st->prev_mode == MODE_SILK_ONLY || st->prev_mode == MODE_HYBRID)) { + /* DTX determined by Silk. */ + int n; + void *silk_enc = (char*)st+st->silk_enc_offset; + *value = 1; + for (n=0;n<st->silk_mode.nChannelsInternal;n++) { + *value = *value && ((silk_encoder*)silk_enc)->state_Fxx[n].sCmn.noSpeechCounter >= NB_SPEECH_FRAMES_BEFORE_DTX; + } + } +#ifndef DISABLE_FLOAT_API + else if (st->use_dtx) { + /* DTX determined by Opus. */ + *value = st->nb_no_activity_frames >= NB_SPEECH_FRAMES_BEFORE_DTX; + } +#endif + else { + *value = 0; + } + } + break; case CELT_GET_MODE_REQUEST: { |