From ca6e613a7f3a05d414353c44d18d30c5e77ac8c3 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Tue, 21 Oct 2008 22:53:13 +0200 Subject: pcm_utils: no CamelCase Renamed all functions which were still in CamelCase. --- src/decoder_api.c | 10 ++--- src/output_thread.c | 16 +++---- src/pcm_utils.c | 127 ++++++++++++++++++++++++++-------------------------- src/pcm_utils.h | 20 +++++---- src/player_thread.c | 4 +- 5 files changed, 89 insertions(+), 88 deletions(-) (limited to 'src') diff --git a/src/decoder_api.c b/src/decoder_api.c index 8175fbac8..a90fb6370 100644 --- a/src/decoder_api.c +++ b/src/decoder_api.c @@ -171,8 +171,8 @@ decoder_data(struct decoder *decoder, data = dataIn; datalen = dataInLen; } else { - datalen = pcm_sizeOfConvBuffer(&(dc.audioFormat), dataInLen, - &(ob.audioFormat)); + datalen = pcm_convert_size(&(dc.audioFormat), dataInLen, + &(ob.audioFormat)); if (datalen > convBufferLen) { if (convBuffer != NULL) free(convBuffer); @@ -180,9 +180,9 @@ decoder_data(struct decoder *decoder, convBufferLen = datalen; } data = convBuffer; - datalen = pcm_convertAudioFormat(&(dc.audioFormat), dataIn, - dataInLen, &(ob.audioFormat), - data, &decoder->conv_state); + datalen = pcm_convert(&(dc.audioFormat), dataIn, + dataInLen, &(ob.audioFormat), + data, &decoder->conv_state); } if (replayGainInfo != NULL && (replayGainState != REPLAYGAIN_OFF)) diff --git a/src/output_thread.c b/src/output_thread.c index 565708299..e2f360d9b 100644 --- a/src/output_thread.c +++ b/src/output_thread.c @@ -33,9 +33,9 @@ static void ao_command_finished(struct audio_output *ao) static void convertAudioFormat(struct audio_output *audioOutput, const char **chunkArgPtr, size_t *sizeArgPtr) { - size_t size = pcm_sizeOfConvBuffer(&(audioOutput->inAudioFormat), - *sizeArgPtr, - &(audioOutput->outAudioFormat)); + size_t size = pcm_convert_size(&(audioOutput->inAudioFormat), + *sizeArgPtr, + &(audioOutput->outAudioFormat)); if (size > audioOutput->convBufferLen) { if (audioOutput->convBuffer != NULL) @@ -44,11 +44,11 @@ static void convertAudioFormat(struct audio_output *audioOutput, audioOutput->convBufferLen = size; } - *sizeArgPtr = pcm_convertAudioFormat(&(audioOutput->inAudioFormat), - *chunkArgPtr, *sizeArgPtr, - &(audioOutput->outAudioFormat), - audioOutput->convBuffer, - &audioOutput->convState); + *sizeArgPtr = pcm_convert(&(audioOutput->inAudioFormat), + *chunkArgPtr, *sizeArgPtr, + &(audioOutput->outAudioFormat), + audioOutput->convBuffer, + &audioOutput->convState); *chunkArgPtr = audioOutput->convBuffer; } diff --git a/src/pcm_utils.c b/src/pcm_utils.c index d80291088..29932ba4b 100644 --- a/src/pcm_utils.c +++ b/src/pcm_utils.c @@ -85,9 +85,9 @@ pcm_volume_change_24(int32_t *buffer, unsigned num_samples, int volume) } } -void pcm_volumeChange(char *buffer, int bufferSize, - const struct audio_format *format, - int volume) +void pcm_volume(char *buffer, int bufferSize, + const struct audio_format *format, + int volume) { if (volume >= 1000) return; @@ -113,7 +113,7 @@ void pcm_volumeChange(char *buffer, int bufferSize, break; default: - FATAL("%u bits not supported by pcm_volumeChange!\n", + FATAL("%u bits not supported by pcm_volume!\n", format->bits); } } @@ -206,7 +206,7 @@ void pcm_mix(char *buffer1, const char *buffer2, size_t size, } #ifdef HAVE_LIBSAMPLERATE -static int pcm_getSampleRateConverter(void) +static int pcm_resample_get_converter(void) { const char *conf = getConfigParamValue(CONF_SAMPLERATE_CONVERTER); long convalgo; @@ -244,11 +244,11 @@ out: #endif #ifdef HAVE_LIBSAMPLERATE -static size_t pcm_convertSampleRate(int8_t channels, uint32_t inSampleRate, - const int16_t *inBuffer, size_t inSize, - uint32_t outSampleRate, int16_t *outBuffer, - size_t outSize, - struct pcm_convert_state *convState) +static size_t pcm_resample(int8_t channels, uint32_t inSampleRate, + const int16_t *src, size_t src_size, + uint32_t outSampleRate, int16_t *outBuffer, + size_t outSize, + struct pcm_convert_state *convState) { static int convalgo = -1; SRC_DATA *data = &convState->data; @@ -257,7 +257,7 @@ static size_t pcm_convertSampleRate(int8_t channels, uint32_t inSampleRate, int error; if (convalgo < 0) - convalgo = pcm_getSampleRateConverter(); + convalgo = pcm_resample_get_converter(); /* (re)set the state/ratio if the in or out format changed */ if ((channels != convState->lastChannels) || @@ -289,7 +289,7 @@ static size_t pcm_convertSampleRate(int8_t channels, uint32_t inSampleRate, if (convState->error) return 0; - data->input_frames = inSize / 2 / channels; + data->input_frames = src_size / 2 / channels; dataInSize = data->input_frames * sizeof(float) * channels; if (dataInSize > convState->dataInSize) { convState->dataInSize = dataInSize; @@ -303,7 +303,7 @@ static size_t pcm_convertSampleRate(int8_t channels, uint32_t inSampleRate, data->data_out = xrealloc(data->data_out, dataOutSize); } - src_short_to_float_array((const short *)inBuffer, data->data_in, + src_short_to_float_array((const short *)src, data->data_in, data->input_frames * channels); error = src_process(convState->state, data); @@ -321,16 +321,15 @@ static size_t pcm_convertSampleRate(int8_t channels, uint32_t inSampleRate, } #else /* !HAVE_LIBSAMPLERATE */ /* resampling code blatantly ripped from ESD */ -static size_t pcm_convertSampleRate(int8_t channels, uint32_t inSampleRate, - const int16_t *inBuffer, - mpd_unused size_t inSize, - uint32_t outSampleRate, char *outBuffer, - size_t outSize, - mpd_unused struct pcm_convert_state *convState) +static size_t pcm_resample(int8_t channels, uint32_t inSampleRate, + const int16_t *src, mpd_unused size_t src_size, + uint32_t outSampleRate, char *outBuffer, + size_t outSize, + mpd_unused struct pcm_convert_state *convState) { uint32_t rd_dat = 0; uint32_t wr_dat = 0; - const int16_t *in = (const int16_t *)inBuffer; + const int16_t *in = (const int16_t *)src; int16_t *out = (int16_t *)outBuffer; uint32_t nlen = outSize / 2; int16_t lsample, rsample; @@ -410,9 +409,9 @@ pcm_convert_channels_n_to_2(int16_t *dest, } static const int16_t * -pcm_convertChannels(int8_t dest_channels, - int8_t src_channels, const int16_t *src, - size_t src_size, size_t *dest_size_r) +pcm_convert_channels(int8_t dest_channels, + int8_t src_channels, const int16_t *src, + size_t src_size, size_t *dest_size_r) { static int16_t *buf; static size_t len; @@ -463,8 +462,8 @@ pcm_convert_24_to_16(int16_t *out, const int32_t *in, } static const int16_t * -pcm_convertTo16bit(uint8_t bits, const void *inBuffer, - size_t inSize, size_t *outSize) +pcm_convert_to_16(uint8_t bits, const void *src, + size_t src_size, size_t *dest_size_r) { static int16_t *buf; static size_t len; @@ -472,32 +471,32 @@ pcm_convertTo16bit(uint8_t bits, const void *inBuffer, switch (bits) { case 8: - num_samples = inSize; - *outSize = inSize << 1; - if (*outSize > len) { - len = *outSize; + num_samples = src_size; + *dest_size_r = src_size << 1; + if (*dest_size_r > len) { + len = *dest_size_r; buf = xrealloc(buf, len); } pcm_convert_8_to_16((int16_t *)buf, - (const int8_t *)inBuffer, + (const int8_t *)src, num_samples); return buf; case 16: - *outSize = inSize; - return inBuffer; + *dest_size_r = src_size; + return src; case 24: - num_samples = inSize / 4; - *outSize = num_samples * 2; - if (*outSize > len) { - len = *outSize; + num_samples = src_size / 4; + *dest_size_r = num_samples * 2; + if (*dest_size_r > len) { + len = *dest_size_r; buf = xrealloc(buf, len); } pcm_convert_24_to_16((int16_t *)buf, - (const int32_t *)inBuffer, + (const int32_t *)src, num_samples); return buf; } @@ -507,40 +506,40 @@ pcm_convertTo16bit(uint8_t bits, const void *inBuffer, } /* outFormat bits must be 16 and channels must be 1 or 2! */ -size_t pcm_convertAudioFormat(const struct audio_format *inFormat, - const char *inBuffer, size_t inSize, - const struct audio_format *outFormat, - char *outBuffer, - struct pcm_convert_state *convState) +size_t pcm_convert(const struct audio_format *inFormat, + const char *src, size_t src_size, + const struct audio_format *outFormat, + char *outBuffer, + struct pcm_convert_state *convState) { const int16_t *buf; size_t len = 0; - size_t outSize = pcm_sizeOfConvBuffer(inFormat, inSize, outFormat); + size_t dest_size = pcm_convert_size(inFormat, src_size, outFormat); assert(outFormat->bits == 16); /* everything else supports 16 bit only, so convert to that first */ - buf = pcm_convertTo16bit(inFormat->bits, inBuffer, inSize, &len); + buf = pcm_convert_to_16(inFormat->bits, src, src_size, &len); if (!buf) exit(EXIT_FAILURE); if (inFormat->channels != outFormat->channels) { - buf = pcm_convertChannels(outFormat->channels, - inFormat->channels, - buf, len, &len); + buf = pcm_convert_channels(outFormat->channels, + inFormat->channels, + buf, len, &len); if (!buf) exit(EXIT_FAILURE); } if (inFormat->sample_rate == outFormat->sample_rate) { - assert(outSize >= len); + assert(dest_size >= len); memcpy(outBuffer, buf, len); } else { - len = pcm_convertSampleRate(outFormat->channels, - inFormat->sample_rate, buf, len, - outFormat->sample_rate, - (int16_t*)outBuffer, - outSize, convState); + len = pcm_resample(outFormat->channels, + inFormat->sample_rate, buf, len, + outFormat->sample_rate, + (int16_t*)outBuffer, + dest_size, convState); if (len == 0) exit(EXIT_FAILURE); } @@ -548,35 +547,35 @@ size_t pcm_convertAudioFormat(const struct audio_format *inFormat, return len; } -size_t pcm_sizeOfConvBuffer(const struct audio_format *inFormat, size_t inSize, - const struct audio_format *outFormat) +size_t pcm_convert_size(const struct audio_format *inFormat, size_t src_size, + const struct audio_format *outFormat) { const double ratio = (double)outFormat->sample_rate / (double)inFormat->sample_rate; const int shift = 2 * outFormat->channels; - size_t outSize = inSize; + size_t dest_size = src_size; switch (inFormat->bits) { case 8: - outSize <<= 1; + dest_size <<= 1; break; case 16: break; case 24: - outSize = (outSize / 4) * 2; + dest_size = (dest_size / 4) * 2; break; default: FATAL("only 8 or 16 bits are supported for conversion!\n"); } if (inFormat->channels != outFormat->channels) { - outSize /= inFormat->channels; - outSize *= outFormat->channels; + dest_size /= inFormat->channels; + dest_size *= outFormat->channels; } - outSize /= shift; - outSize = floor(0.5 + (double)outSize * ratio); - outSize *= shift; + dest_size /= shift; + dest_size = floor(0.5 + (double)dest_size * ratio); + dest_size *= shift; - return outSize; + return dest_size; } diff --git a/src/pcm_utils.h b/src/pcm_utils.h index 4041e2f64..b67fae00e 100644 --- a/src/pcm_utils.h +++ b/src/pcm_utils.h @@ -44,18 +44,20 @@ struct pcm_convert_state { int error; }; -void pcm_volumeChange(char *buffer, int bufferSize, const struct audio_format *format, - int volume); +void pcm_volume(char *buffer, int bufferSize, + const struct audio_format *format, + int volume); void pcm_mix(char *buffer1, const char *buffer2, size_t size, const struct audio_format *format, float portion1); -size_t pcm_convertAudioFormat(const struct audio_format *inFormat, - const char *inBuffer, size_t inSize, - const struct audio_format *outFormat, - char *outBuffer, - struct pcm_convert_state *convState); +size_t pcm_convert(const struct audio_format *inFormat, + const char *inBuffer, size_t inSize, + const struct audio_format *outFormat, + char *outBuffer, + struct pcm_convert_state *convState); + +size_t pcm_convert_size(const struct audio_format *inFormat, size_t inSize, + const struct audio_format *outFormat); -size_t pcm_sizeOfConvBuffer(const struct audio_format *inFormat, size_t inSize, - const struct audio_format *outFormat); #endif diff --git a/src/player_thread.c b/src/player_thread.c index b55fba338..bef3c9194 100644 --- a/src/player_thread.c +++ b/src/player_thread.c @@ -213,8 +213,8 @@ static int playChunk(ob_chunk * chunk, pc.elapsedTime = chunk->times; pc.bitRate = chunk->bitRate; - pcm_volumeChange(chunk->data, chunk->chunkSize, - format, pc.softwareVolume); + pcm_volume(chunk->data, chunk->chunkSize, + format, pc.softwareVolume); if (playAudio(chunk->data, chunk->chunkSize) < 0) -- cgit v1.2.3