From 924fa1704affb3edacc467cc2b1dd82c35075c83 Mon Sep 17 00:00:00 2001 From: Abramo Bagnara Date: Fri, 29 Dec 2000 15:00:55 +0000 Subject: [PATCH] PCM API cleaning. silencing implementation. xfer_min removal --- aplay/aplay.c | 98 ++++++++++++++++++++++++--------------------------- 1 file changed, 46 insertions(+), 52 deletions(-) diff --git a/aplay/aplay.c b/aplay/aplay.c index 92dcdc4..284eea7 100644 --- a/aplay/aplay.c +++ b/aplay/aplay.c @@ -81,7 +81,6 @@ static int buffer_size = -1; static int frag_length = 125000; static int buffer_length = 500000; static int avail_min = 50000; -static int xfer_min = 50000; static int verbose = 0; static int buffer_pos = 0; static size_t bits_per_sample, bits_per_frame; @@ -393,9 +392,6 @@ int main(int argc, char *argv[]) case 'A': avail_min = atoi(optarg); break; - case 'X': - xfer_min = atoi(optarg); - break; case 'v': verbose = 1; break; @@ -717,6 +713,7 @@ static void set_params(void) snd_pcm_sw_params_t swparams; size_t bufsize; int err; + size_t n; err = snd_pcm_hw_params_any(handle, ¶ms); if (err < 0) { error("Broken configuration for this PCM: no configurations available"); @@ -727,79 +724,77 @@ static void set_params(void) mask_set(mask, SND_PCM_ACCESS_MMAP_INTERLEAVED); mask_set(mask, SND_PCM_ACCESS_MMAP_NONINTERLEAVED); mask_set(mask, SND_PCM_ACCESS_MMAP_COMPLEX); - err = snd_pcm_hw_params_mask(handle, ¶ms, - SND_PCM_HW_PARAM_ACCESS, mask); + err = snd_pcm_hw_param_mask(handle, ¶ms, + SND_PCM_HW_PARAM_ACCESS, mask); } else if (interleaved) - err = snd_pcm_hw_params_set(handle, ¶ms, - SND_PCM_HW_PARAM_ACCESS, - SND_PCM_ACCESS_RW_INTERLEAVED); + err = snd_pcm_hw_param_set(handle, ¶ms, + SND_PCM_HW_PARAM_ACCESS, + SND_PCM_ACCESS_RW_INTERLEAVED); else - err = snd_pcm_hw_params_set(handle, ¶ms, - SND_PCM_HW_PARAM_ACCESS, - SND_PCM_ACCESS_RW_NONINTERLEAVED); + err = snd_pcm_hw_param_set(handle, ¶ms, + SND_PCM_HW_PARAM_ACCESS, + SND_PCM_ACCESS_RW_NONINTERLEAVED); if (err < 0) { error("Access type not available"); exit(EXIT_FAILURE); } - err = snd_pcm_hw_params_set(handle, ¶ms, SND_PCM_HW_PARAM_FORMAT, - hwparams.format); + err = snd_pcm_hw_param_set(handle, ¶ms, SND_PCM_HW_PARAM_FORMAT, + hwparams.format); if (err < 0) { error("Sample format non available"); exit(EXIT_FAILURE); } - err = snd_pcm_hw_params_set(handle, ¶ms, SND_PCM_HW_PARAM_CHANNELS, - hwparams.channels); + err = snd_pcm_hw_param_set(handle, ¶ms, SND_PCM_HW_PARAM_CHANNELS, + hwparams.channels); if (err < 0) { error("Channels count non available"); exit(EXIT_FAILURE); } - err = snd_pcm_hw_params_min(handle, ¶ms, - SND_PCM_HW_PARAM_FRAGMENTS, 2); + err = snd_pcm_hw_param_min(handle, ¶ms, + SND_PCM_HW_PARAM_FRAGMENTS, 2); assert(err >= 0); - err = snd_pcm_hw_params_near(handle, ¶ms, - SND_PCM_HW_PARAM_RATE, hwparams.rate); + err = snd_pcm_hw_param_near(handle, ¶ms, + SND_PCM_HW_PARAM_RATE, hwparams.rate); assert(err >= 0); - err = snd_pcm_hw_params_near(handle, ¶ms, - SND_PCM_HW_PARAM_FRAGMENT_LENGTH, - frag_length); + err = snd_pcm_hw_param_near(handle, ¶ms, + SND_PCM_HW_PARAM_FRAGMENT_LENGTH, + frag_length); assert(err >= 0); - err = snd_pcm_hw_params_near(handle, ¶ms, + err = snd_pcm_hw_param_near(handle, ¶ms, SND_PCM_HW_PARAM_BUFFER_LENGTH, buffer_length); assert(err >= 0); err = snd_pcm_hw_params(handle, ¶ms); if (err < 0) { - fprintf(stderr, "Unable to install params:\n"); - snd_pcm_dump_hw_params(¶ms, stderr); + fprintf(stderr, "Unable to install hw params:\n"); + snd_pcm_hw_params_dump(¶ms, stderr); exit(EXIT_FAILURE); } - bufsize = snd_pcm_hw_params_value(¶ms, SND_PCM_HW_PARAM_FRAGMENT_SIZE) * - snd_pcm_hw_params_value(¶ms, SND_PCM_HW_PARAM_FRAGMENTS); + buffer_size = snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_FRAGMENT_SIZE); + bufsize = buffer_size * snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_FRAGMENTS); - swparams.start_mode = SND_PCM_START_DATA; - swparams.ready_mode = ready_mode; - swparams.xrun_mode = xrun_mode; - swparams.avail_min = snd_pcm_hw_params_value(¶ms, SND_PCM_HW_PARAM_RATE) * avail_min / 1000000; - swparams.xfer_min = snd_pcm_hw_params_value(¶ms, SND_PCM_HW_PARAM_RATE) * xfer_min / 1000000; - if (xrun_mode == SND_PCM_XRUN_FRAGMENT) - swparams.xfer_align = snd_pcm_hw_params_value(¶ms, SND_PCM_HW_PARAM_FRAGMENT_SIZE); - else - swparams.xfer_align = 1; - swparams.xfer_min -= swparams.xfer_min % swparams.xfer_align; - swparams.avail_min -= swparams.avail_min % swparams.xfer_align; - if (swparams.xfer_min == 0) - swparams.xfer_min = swparams.xfer_align; - else if (swparams.xfer_min >= bufsize) - swparams.xfer_min = bufsize - swparams.xfer_align; - if (swparams.avail_min == 0) - swparams.avail_min = swparams.xfer_align; - else if (swparams.avail_min >= bufsize) - swparams.avail_min = bufsize - swparams.xfer_align; - swparams.time = 0; + snd_pcm_sw_params_current(handle, &swparams); + err = snd_pcm_sw_param_set(handle, &swparams, + SND_PCM_SW_PARAM_READY_MODE, ready_mode); + assert(err >= 0); + err = snd_pcm_sw_param_set(handle, &swparams, + SND_PCM_SW_PARAM_XRUN_MODE, xrun_mode); + assert(err >= 0); + n = snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_RATE) * avail_min / 1000000; + if (n > bufsize - buffer_size) + n = bufsize - buffer_size; + err = snd_pcm_sw_param_near(handle, &swparams, + SND_PCM_SW_PARAM_AVAIL_MIN, n); + + if (xrun_mode == SND_PCM_XRUN_ASAP) { + err = snd_pcm_sw_param_near(handle, &swparams, + SND_PCM_SW_PARAM_XFER_ALIGN, 1); + assert(err >= 0); + } if (snd_pcm_sw_params(handle, &swparams) < 0) { - snd_pcm_dump_sw_params_fail(&swparams, stderr); - error("unable to set sw params"); + error("unable to install sw params:"); + snd_pcm_sw_params_dump(&swparams, stderr); exit(EXIT_FAILURE); } if (snd_pcm_prepare(handle) < 0) { @@ -810,7 +805,6 @@ static void set_params(void) if (verbose) snd_pcm_dump(handle, stderr); - buffer_size = snd_pcm_hw_params_value(¶ms, SND_PCM_HW_PARAM_FRAGMENT_SIZE); bits_per_sample = snd_pcm_format_physical_width(hwparams.format); bits_per_frame = bits_per_sample * hwparams.channels; buffer_bytes = buffer_size * bits_per_frame / 8; @@ -841,7 +835,7 @@ void xrun(void) fprintf(stderr, "xrun!!! (at least %.3f ms long)\n", diff.tv_sec * 1000 + diff.tv_usec / 1000.0); if (verbose) { fprintf(stderr, "Status:\n"); - snd_pcm_dump_status(&status, stderr); + snd_pcm_status_dump(&status, stderr); } if ((res = snd_pcm_prepare(handle))<0) { error("xrun: prepare error: %s", snd_strerror(res));