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Searched refs:channels (Results 1 – 25 of 139) sorted by relevance

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/AliOS-Things-master/components/SDL2/src/image/external/libpng-1.6.37/contrib/tools/
A Dcvtcolor.c53 int channels = 0; in main() local
92 ++channels; in main()
95 ++channels; in main()
98 ++channels; in main()
101 ++channels; in main()
123 if ((channels & 1) == 0) in main()
136 if (channels < 3) in main()
139 prog, channels); in main()
144 channels -= 2; in main()
149 if (channels > 2) in main()
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/AliOS-Things-master/components/uvoice/audio/process/
A Dproc_resample.c26 int channels; member
44 int samples_per_channel, int channels) in float_to_short_interleave() argument
82 int channels; in uvoice_resampler_process() local
102 channels = inst->channels; in uvoice_resampler_process()
163 for (i = 0; i < channels; i++) { in uvoice_resampler_process()
183 output_samples / channels, channels); in uvoice_resampler_process()
222 if (inst->channels == channels && inst->sbits == sbits && in uvoice_resampler_update()
228 if (inst->channels != channels) in uvoice_resampler_update()
229 inst->channels = channels; in uvoice_resampler_update()
259 int channels, int sbits) in uvoice_resampler_create() argument
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/AliOS-Things-master/components/uvoice/codec/
A Dopus_decoder.c28 int channels; member
53 static bool opus_channels_valid(int channels) in opus_channels_valid() argument
55 if (channels == 1 || channels == 2) in opus_channels_valid()
146 pcm_info.channels = opus->channels; in opus_decode_process()
148 pcm_info.channels = 1; in opus_decode_process()
232 opus->channels = pcminfo->channels; in opus_decode_action()
233 opus_channels = opus->channels; in opus_decode_action()
248 if (!opus_channels_valid(opus->channels)) { in opus_decode_action()
250 opus->channels = opus_channels; in opus_decode_action()
258 opus->channels, &error); in opus_decode_action()
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A Dspx_decoder.c28 int channels; member
48 static bool spx_channels_valid(int channels) in spx_channels_valid() argument
50 if (channels == 1 || channels == 2) in spx_channels_valid()
124 pcm_info.frames = spx->frame_size / spx->channels; in spx_decoder_process()
126 pcm_info.channels = spx->channels; in spx_decoder_process()
128 pcm_info.channels = 1; in spx_decoder_process()
191 if (!spx_channels_valid(pcminfo->channels)) { in spx_decoder_action()
195 spx->channels = pcminfo->channels; in spx_decoder_action()
196 spx_channels = spx->channels; in spx_decoder_action()
211 if (!spx_channels_valid(spx->channels)) { in spx_decoder_action()
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A Dogg_decoder.c207 pcm_info.channels = ogg->vb_info.channels; in ogg_decoder_process()
209 pcm_info.channels = 1; in ogg_decoder_process()
211 mdecoder->buffer_out_size = OGG_DECODE_OUTPUT_SAMPLES_MAX * pcm_info.channels * 2; in ogg_decoder_process()
281 int channels = mdecoder->stere_enable ? ogg->vb_info.channels : 1; in ogg_decoder_process() local
287 for (i = 0; i < channels; i++) { in ogg_decoder_process()
306 ptr += channels; in ogg_decoder_process()
314 out_len = bout * channels * 2; in ogg_decoder_process()
A Dpvaac_decoder.c109 int channels; member
117 static int aac_dec_init(int channels) in aac_dec_init() argument
139 g_dec_ext.desiredChannels = (int)channels; in aac_dec_init()
158 …onfig(const uint8_t *in_buffer, uint32_t in_size, int *samplerate, int *channels, int *framelength) in aac_decoder_config() argument
169 *channels = g_dec_ext.encodedChannels; in aac_decoder_config()
171 aac_dec_init(*channels); in aac_decoder_config()
345 m4adec->channels, in pcm_output()
350 pcm_info.frames = samples * m4adec->channels; in pcm_output()
351 pcm_info.channels = m4adec->channels; in pcm_output()
353 pcm_info.channels = 1; in pcm_output()
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A Dopus_encoder.c30 int channels; member
145 int mem_size = opus_encoder_get_size(mencoder->channels); in opus_encode_action()
159 mencoder->channels, OPUS_APPLICATION_VOIP); in opus_encode_action()
169 mencoder->channels, mencoder->bitrate); in opus_encode_action()
174 opus_encoder_ctl(opus->handler, OPUS_SET_FORCE_CHANNELS(mencoder->channels)); in opus_encode_action()
/AliOS-Things-master/components/uvoice/media/
A Duvoice_fade.c11 int *pos, int scope, int channels) in fade_out_proc_8bit() argument
20 samples = nbytes / channels; in fade_out_proc_8bit()
22 for (channel_index = 0; channel_index < channels; in fade_out_proc_8bit()
40 int *pos, int scope, int channels) in fade_in_proc_8bit() argument
52 samples = nbytes / channels; in fade_in_proc_8bit()
54 for (channel_index = 0; channel_index < channels; in fade_in_proc_8bit()
77 int *pos, int scope, int channels) in fade_out_proc_16bit() argument
86 samples = nbytes / (channels * 2); in fade_out_proc_16bit()
88 for (channel_index = 0; channel_index < channels; in fade_out_proc_16bit()
106 int *pos, int scope, int channels) in fade_in_proc_16bit() argument
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A Duvoice_wave.c26 int channels; member
31 int channels, int bits) in wave_header_init() argument
43 header->num_channels = channels; in wave_header_init()
145 pcm_info.channels = chunk_fmt.num_channels; in wave_info_parse()
147 pcm_info.channels = 1; in wave_info_parse()
150 (pcm_info.channels * (pcm_info.bits >> 3)); in wave_info_parse()
152 wave->channels = chunk_fmt.num_channels; in wave_info_parse()
240 wave_channels = wave->channels; in wave_decode_action()
246 wave->channels = wave_channels; in wave_decode_action()
335 pcminfo->channels, pcminfo->bits); in wave_encode_header_gen()
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/AliOS-Things-master/components/SDL2/src/image/external/libpng-1.6.37/
A Dpngwtran.c30 row_info->channels == 1) in png_do_pack()
180 unsigned int channels = 0; in png_do_shift() local
185 shift_dec[channels] = bit_depth->red; in png_do_shift()
186 channels++; in png_do_shift()
190 channels++; in png_do_shift()
193 shift_dec[channels] = bit_depth->blue; in png_do_shift()
194 channels++; in png_do_shift()
201 channels++; in png_do_shift()
208 channels++; in png_do_shift()
257 unsigned int c = i%channels; in png_do_shift()
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/AliOS-Things-master/components/SDL2/test/
A Dtestautomation_audio.c525 spec1.channels = 2; in audio_buildAudioCVT()
534 spec1.channels = 1; in audio_buildAudioCVT()
537 spec2.channels = 2; in audio_buildAudioCVT()
592 spec1.channels = 1; in audio_buildAudioCVTNegative()
595 spec2.channels = 2; in audio_buildAudioCVTNegative()
618 spec1.channels = 1; in audio_buildAudioCVTNegative()
621 spec2.channels = 2; in audio_buildAudioCVTNegative()
635 spec1.channels = 0; in audio_buildAudioCVTNegative()
718 desired.channels=2; in audio_openCloseAndGetAudioStatus()
776 desired.channels=2; in audio_lockUnlockOpenAudioDevice()
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/AliOS-Things-master/components/SDL2/src/image/external/libpng-1.6.37/contrib/gregbook/
A Dreadppm.c68 int bit_depth, color_type, channels; variable
97 channels = 3; in readpng_init()
100 channels = 4; in readpng_init()
103 channels = 1; in readpng_init()
154 *pRowbytes = rowbytes = channels*width; in readpng_get_image()
155 *pChannels = channels; in readpng_get_image()
/AliOS-Things-master/components/uvoice/audio/
A Daudio_common.h42 static inline bool pcm_channel_valid(int channels) in pcm_channel_valid() argument
44 if (channels > 0 && channels <= 8) in pcm_channel_valid()
65 return (config->period_size * config->channels * in period_samples_to_bytes()
A Daudio_stream.c206 if (!pcm_channel_valid(pcminfo->channels) || pcminfo->channels > 2) { in out_stream_configure()
207 snd_err("channels %d invalid !\n", pcminfo->channels); in out_stream_configure()
235 config->channels = pcminfo->channels; in out_stream_configure()
248 if (pcminfo->channels != config->channels) in out_stream_configure()
249 pcminfo->channels = config->channels; in out_stream_configure()
617 if (!pcm_channel_valid(pcminfo->channels)) { in in_stream_configure()
618 snd_err("channels %d invalid !\n", pcminfo->channels); in in_stream_configure()
638 pcm->config.channels = pcminfo->channels; in in_stream_configure()
650 if (pcminfo->channels != pcm->config.channels) in in_stream_configure()
651 pcminfo->channels = pcm->config.channels; in in_stream_configure()
/AliOS-Things-master/components/SDL2/src/audio/
A DSDL_wave.c199 switch (format->channels) { in WaveDebugLogFormat()
394 if (format->channels > 2) { in MS_ADPCM_Init()
535 const Uint32 channels = state->channels; in MS_ADPCM_DecodeBlockHeader() local
553 o = channels + c * 2; in MS_ADPCM_DecodeBlockHeader()
559 o = channels * 3 + c * 2; in MS_ADPCM_DecodeBlockHeader()
566 o = channels * 5 + c * 2; in MS_ADPCM_DecodeBlockHeader()
597 const Uint32 channels = state->channels; in MS_ADPCM_DecodeBlockData() local
667 state.channels = file->format.channels; in MS_ADPCM_Decode()
971 const Uint32 channels = state->channels; in IMA_ADPCM_DecodeBlockData() local
1060 state.channels = file->format.channels; in IMA_ADPCM_Decode()
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/AliOS-Things-master/components/SDL2/src/audio/jack/
A DSDL_jackaudio.c166 const int total_channels = this->spec.channels; in jackProcessPlaybackCallback()
216 const int total_channels = this->spec.channels; in jackProcessCaptureCallback()
265 const int channels = this->spec.channels; in JACK_CloseDevice() local
267 for (i = 0; i < channels; i++) { in JACK_CloseDevice()
298 int channels = 0; in JACK_OpenDevice() local
332 audio_ports[channels++] = i; in JACK_OpenDevice()
335 if (channels == 0) { in JACK_OpenDevice()
345 this->spec.channels = channels; in JACK_OpenDevice()
361 this->hidden->sdlports = (jack_port_t **) SDL_calloc(channels, sizeof (jack_port_t *)); in JACK_OpenDevice()
366 for (i = 0; i < channels; i++) { in JACK_OpenDevice()
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/AliOS-Things-master/components/SDL2/src/audio/dsp/
A DSDL_dspaudio.c90 if (this->spec.channels > 8) in DSP_OpenDevice()
91 this->spec.channels = 8; in DSP_OpenDevice()
92 else if (this->spec.channels > 4) in DSP_OpenDevice()
93 this->spec.channels = 4; in DSP_OpenDevice()
94 else if (this->spec.channels > 2) in DSP_OpenDevice()
95 this->spec.channels = 2; in DSP_OpenDevice()
193 value = this->spec.channels; in DSP_OpenDevice()
198 this->spec.channels = value; in DSP_OpenDevice()
/AliOS-Things-master/components/SDL2/src/image/external/libpng-1.6.37/contrib/pngminus/
A Dpng2pnm.c177 int channels; in png2pnm() local
270 channels = 1; in png2pnm()
272 channels = 2; in png2pnm()
274 channels = 3; in png2pnm()
276 channels = 4; in png2pnm()
278 channels = 0; /* should never happen */ in png2pnm()
279 alpha_present = (channels - 1) % 2; in png2pnm()
362 for (i = 0; i < (channels - alpha_present); i++) in png2pnm()
A Dpnm2png.c185 int channels = 0; in pnm2png() local
333 channels = 1; in pnm2png()
335 channels = 2; in pnm2png()
337 channels = 3; in pnm2png()
339 channels = 4; in pnm2png()
342 channels = 0; /* cannot happen */ in pnm2png()
345 alpha_present = (channels - 1) % 2; in pnm2png()
351 row_bytes = (width * channels * bit_depth + 7) / 8; in pnm2png()
357 row_bytes = width * channels * ((bit_depth <= 8) ? 1 : 2); in pnm2png()
392 for (i = 0; i < (channels - alpha_present); i++) in pnm2png()
/AliOS-Things-master/components/a2sa/src/driver/platform/rtos/
A Dtemplate.c125 int channels; member
150 static pcm_stream_handler_t playback_open(int mode, int sampleRate, int channels, int format, aos_h… in playback_open() argument
159 int send_size = PLAYBACK_MS * channels * format_byte; in playback_open()
170 playback->channels = channels; in playback_open()
185 output_config.sound_channel_num = channels; in playback_open()
217 static pcm_stream_handler_t codec_pcm_stream_open(int mode, int sampleRate, int channels, int forma… in codec_pcm_stream_open() argument
226 hdl = playback_open(mode, sampleRate, channels, format, event_hdl); in codec_pcm_stream_open()
/AliOS-Things-master/components/SDL2/src/audio/paudio/
A DSDL_paudio.c263 if (this->spec.channels > 1) in PAUDIO_OpenDevice()
264 this->spec.channels = 2; in PAUDIO_OpenDevice()
266 this->spec.channels = 1; in PAUDIO_OpenDevice()
316 paud_init.channels = this->spec.channels; in PAUDIO_OpenDevice()
389 / bytes_per_sample / this->spec.channels; in PAUDIO_OpenDevice()
392 / bytes_per_sample / this->spec.channels / 2; in PAUDIO_OpenDevice()
394 paud_init.bsize = bytes_per_sample * this->spec.channels; in PAUDIO_OpenDevice()
/AliOS-Things-master/components/a2sa/example/
A Dsound_example_lb.c33 int freq = 16000, channels = 1; in sound_loopback_thread() local
37 buf_size = freq * channels * 2 / 5; in sound_loopback_thread()
53 …m_set_params(pb_pcm, AOSRV_PCM_FORMAT_S16_LE, AOS_PCM_ACCESS_RW_INTERLEAVED, channels, freq, 0, 0); in sound_loopback_thread()
67 …_set_params(cap_pcm, AOSRV_PCM_FORMAT_S16_LE, AOS_PCM_ACCESS_RW_INTERLEAVED, channels, freq, 0, 0); in sound_loopback_thread()
/AliOS-Things-master/components/SDL2/src/audio/fusionsound/
A DSDL_fsaudio.c240 this->hidden->mixsamples = this->spec.size / bytes / this->spec.channels; in SDL_FS_OpenDevice()
247 desc.channels = this->spec.channels; in SDL_FS_OpenDevice()
265 desc.buffersize / FUSION_BUFFERS * bytes * desc.channels; in SDL_FS_OpenDevice()
266 this->spec.channels = desc.channels; in SDL_FS_OpenDevice()
/AliOS-Things-master/components/SDL2/src/audio/alsa/
A DSDL_alsa_audio.c227 get_audio_device(void *handle, const int channels) in get_audio_device() argument
241 if (channels == 6) { in get_audio_device()
243 } else if (channels == 4) { in get_audio_device()
325 if (this->spec.channels == 6) { in swizzle_alsa_channels()
352 this->spec.channels; in ALSA_PlayDevice()
401 this->spec.channels; in ALSA_CaptureFromDevice()
528 unsigned int channels = 0; in ALSA_OpenDevice() local
545 get_audio_device(handle, this->spec.channels), in ALSA_OpenDevice()
643 this->spec.channels); in ALSA_OpenDevice()
644 channels = this->spec.channels; in ALSA_OpenDevice()
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/AliOS-Things-master/components/uvoice/test/
A Dtest_player.c73 static int play_sine_wave(int rate, int bits, int channels, int freq_hz) in play_sine_wave() argument
82 unsigned int sample_size = (bits >> 3) * channels; in play_sine_wave()
89 if (channels != 1 && channels != 2) { in play_sine_wave()
90 M_LOGE("channels %d invalid !\n", channels); in play_sine_wave()
165 uvocplayer->set_pcminfo(rate, channels, bits, samples_per_period); in play_sine_wave()
215 int channels = 2; in play_loopback() local
223 buffer_size = read_samples * channels * (bits >> 3); in play_loopback()
239 if (mrecorder->set_sink(MEDIA_FMT_PCM, rate, channels, bits, read_samples, 0, NULL)) { in play_loopback()
248 uvocplayer->set_pcminfo(rate, channels, bits, read_samples); in play_loopback()

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