mirror of
https://github.com/alsa-project/alsa-utils
synced 2024-11-09 17:45:41 +01:00
New PCM model with fragment concept removal and two interrupt sources
Renamed size_t/ssize_t to snd_pcm_sframes_t/snd_pcm_uframes_t
This commit is contained in:
Abramo Bagnara
parent
7b49188c03
commit
744c8798c0
1 changed files with 100 additions and 97 deletions
197
aplay/aplay.c
197
aplay/aplay.c
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@ -69,22 +69,21 @@ static struct {
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static int timelimit = 0;
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static int quiet_mode = 0;
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static int file_type = FORMAT_DEFAULT;
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static int xrun_mode = SND_PCM_XRUN_FRAGMENT;
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static int ready_mode = SND_PCM_READY_FRAGMENT;
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static unsigned int sleep_min = 0;
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static int open_mode = 0;
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static int stream = SND_PCM_STREAM_PLAYBACK;
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static int mmap_flag = 0;
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static int interleaved = 1;
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static int nonblock = 0;
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static char *audiobuf = NULL;
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static int buffer_size = -1;
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static int frag_length = 125000;
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static int buffer_length = 500000;
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static int avail_min = 50000;
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static int chunk_size = -1;
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static int period_time = -1;
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static int buffer_time = -1;
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static int avail_min = -1;
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static int verbose = 0;
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static int buffer_pos = 0;
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static size_t bits_per_sample, bits_per_frame;
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static size_t buffer_bytes;
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static size_t chunk_bytes;
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static int digtype = SND_CONTROL_TYPE_NONE;
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static snd_digital_audio_t diga;
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@ -146,11 +145,11 @@ Usage: %s [OPTION]... [FILE]...
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-f, --format=FORMAT sample format (case insensitive)
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-r, --rate=# sample rate
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-d, --duration=# interrupt after # seconds
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-e, --frame-mode use frame mode instead of default fragment mode
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-s, --sleep-min=# min ticks to sleep
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-M, --mmap mmap stream
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-N, --nonblock nonblocking mode
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-F, --fragment-length=# fragment length is # microseconds
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-B, --buffer-length=# buffer length is # microseconds
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-F, --period-time=# distance between interrupts is # microseconds
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-B, --buffer-time=# buffer duration is # microseconds
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-A, --avail-min=# min available space for wakeup is # microseconds
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-X, --xfer-min=# min xfer size is # microseconds
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-v, --verbose show PCM structure and setup
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@ -257,7 +256,7 @@ static void version(void)
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int main(int argc, char *argv[])
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{
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int option_index;
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char *short_options = "lLD:qt:c:f:r:d:eMNF:A:X:B:vIPC";
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char *short_options = "lLD:qt:c:f:r:d:s:MNF:A:X:B:vIPC";
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static struct option long_options[] = {
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{"help", 0, 0, OPT_HELP},
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{"version", 0, 0, OPT_VERSION},
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@ -270,13 +269,13 @@ int main(int argc, char *argv[])
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{"format", 1, 0, 'f'},
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{"rate", 1, 0, 'r'},
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{"duration", 1, 0 ,'d'},
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{"asap-mode", 0, 0, 'e'},
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{"sleep-min", 0, 0, 's'},
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{"mmap", 0, 0, 'M'},
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{"nonblock", 0, 0, 'N'},
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{"fragment-length", 1, 0, 'F'},
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{"period_time", 1, 0, 'F'},
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{"avail-min", 1, 0, 'A'},
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{"xfer-min", 1, 0, 'X'},
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{"buffer-length", 1, 0, 'B'},
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{"buffer-time", 1, 0, 'B'},
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{"verbose", 0, 0, 'v'},
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{"iec958c", 0, 0, 'C'},
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{"iec958p", 0, 0, 'P'},
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@ -300,7 +299,7 @@ int main(int argc, char *argv[])
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return 1;
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}
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buffer_size = -1;
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chunk_size = -1;
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rhwparams.format = SND_PCM_FORMAT_U8;
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rhwparams.rate = DEFAULT_SPEED;
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rhwparams.channels = 1;
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@ -375,19 +374,18 @@ int main(int argc, char *argv[])
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case 'd':
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timelimit = atoi(optarg);
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break;
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case 'e':
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xrun_mode = SND_PCM_XRUN_ASAP;
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ready_mode = SND_PCM_READY_ASAP;
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case 's':
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sleep_min = atoi(optarg);
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break;
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case 'N':
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nonblock = 1;
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open_mode |= SND_PCM_NONBLOCK;
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break;
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case 'F':
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frag_length = atoi(optarg);
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period_time = atoi(optarg);
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break;
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case 'B':
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buffer_length = atoi(optarg);
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buffer_time = atoi(optarg);
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break;
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case 'A':
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avail_min = atoi(optarg);
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@ -476,7 +474,7 @@ int main(int argc, char *argv[])
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}
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}
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buffer_size = 1024;
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chunk_size = 1024;
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hwparams = rhwparams;
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audiobuf = (char *)malloc(1024);
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@ -711,9 +709,10 @@ static void set_params(void)
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{
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snd_pcm_hw_params_t params;
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snd_pcm_sw_params_t swparams;
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size_t bufsize;
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size_t buffer_size;
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int err;
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size_t n;
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size_t xfer_align;
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err = snd_pcm_hw_params_any(handle, ¶ms);
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if (err < 0) {
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error("Broken configuration for this PCM: no configurations available");
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@ -730,69 +729,73 @@ static void set_params(void)
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} else if (interleaved)
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err = snd_pcm_hw_param_set(handle, ¶ms,
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SND_PCM_HW_PARAM_ACCESS,
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SND_PCM_ACCESS_RW_INTERLEAVED);
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SND_PCM_ACCESS_RW_INTERLEAVED, 0);
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else
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err = snd_pcm_hw_param_set(handle, ¶ms,
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SND_PCM_HW_PARAM_ACCESS,
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SND_PCM_ACCESS_RW_NONINTERLEAVED);
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SND_PCM_ACCESS_RW_NONINTERLEAVED, 0);
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if (err < 0) {
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error("Access type not available");
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exit(EXIT_FAILURE);
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}
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err = snd_pcm_hw_param_set(handle, ¶ms, SND_PCM_HW_PARAM_FORMAT,
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hwparams.format);
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hwparams.format, 0);
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if (err < 0) {
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error("Sample format non available");
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exit(EXIT_FAILURE);
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}
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err = snd_pcm_hw_param_set(handle, ¶ms, SND_PCM_HW_PARAM_CHANNELS,
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hwparams.channels);
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hwparams.channels, 0);
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if (err < 0) {
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error("Channels count non available");
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exit(EXIT_FAILURE);
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}
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#if 0
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err = snd_pcm_hw_param_min(handle, ¶ms,
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SND_PCM_HW_PARAM_FRAGMENTS, 2);
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SND_PCM_HW_PARAM_PERIODS, 2);
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assert(err >= 0);
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#endif
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err = snd_pcm_hw_param_near(handle, ¶ms,
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SND_PCM_HW_PARAM_RATE, hwparams.rate);
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assert(err >= 0);
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err = snd_pcm_hw_param_near(handle, ¶ms,
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SND_PCM_HW_PARAM_FRAGMENT_LENGTH,
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frag_length);
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assert(err >= 0);
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err = snd_pcm_hw_param_near(handle, ¶ms,
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SND_PCM_HW_PARAM_BUFFER_LENGTH,
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buffer_length);
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SND_PCM_HW_PARAM_RATE, hwparams.rate, 0);
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assert(err >= 0);
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if (buffer_time < 0)
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buffer_time = 500000;
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buffer_time = snd_pcm_hw_param_near(handle, ¶ms,
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SND_PCM_HW_PARAM_BUFFER_TIME,
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buffer_time, 0);
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assert(buffer_time >= 0);
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if (period_time < 0)
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period_time = buffer_time / 4;
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period_time = snd_pcm_hw_param_near(handle, ¶ms,
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SND_PCM_HW_PARAM_PERIOD_TIME,
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period_time, 0);
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assert(period_time >= 0);
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err = snd_pcm_hw_params(handle, ¶ms);
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if (err < 0) {
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fprintf(stderr, "Unable to install hw params:\n");
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snd_pcm_hw_params_dump(¶ms, stderr);
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exit(EXIT_FAILURE);
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}
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buffer_size = snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_FRAGMENT_SIZE);
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bufsize = buffer_size * snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_FRAGMENTS);
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chunk_size = snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_PERIOD_SIZE, 0);
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buffer_size = snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_BUFFER_SIZE, 0);
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snd_pcm_sw_params_current(handle, &swparams);
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xfer_align = snd_pcm_sw_param_value(&swparams, SND_PCM_SW_PARAM_XFER_ALIGN);
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if (sleep_min)
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xfer_align = 1;
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err = snd_pcm_sw_param_set(handle, &swparams,
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SND_PCM_SW_PARAM_READY_MODE, ready_mode);
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SND_PCM_SW_PARAM_SLEEP_MIN, sleep_min);
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assert(err >= 0);
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err = snd_pcm_sw_param_set(handle, &swparams,
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SND_PCM_SW_PARAM_XRUN_MODE, xrun_mode);
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assert(err >= 0);
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n = snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_RATE) * avail_min / 1000000;
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if (n > bufsize - buffer_size)
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n = bufsize - buffer_size;
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if (avail_min < 0)
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n = chunk_size;
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else
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n = snd_pcm_hw_param_value(¶ms, SND_PCM_HW_PARAM_RATE, 0) * (double) avail_min / 1000000;
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err = snd_pcm_sw_param_near(handle, &swparams,
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SND_PCM_SW_PARAM_AVAIL_MIN, n);
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if (xrun_mode == SND_PCM_XRUN_ASAP) {
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err = snd_pcm_sw_param_near(handle, &swparams,
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SND_PCM_SW_PARAM_XFER_ALIGN, 1);
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assert(err >= 0);
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}
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err = snd_pcm_sw_param_near(handle, &swparams,
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SND_PCM_SW_PARAM_XFER_ALIGN, xfer_align);
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assert(err >= 0);
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if (snd_pcm_sw_params(handle, &swparams) < 0) {
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error("unable to install sw params:");
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snd_pcm_sw_params_dump(&swparams, stderr);
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@ -808,13 +811,13 @@ static void set_params(void)
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bits_per_sample = snd_pcm_format_physical_width(hwparams.format);
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bits_per_frame = bits_per_sample * hwparams.channels;
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buffer_bytes = buffer_size * bits_per_frame / 8;
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audiobuf = realloc(audiobuf, buffer_bytes);
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chunk_bytes = chunk_size * bits_per_frame / 8;
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audiobuf = realloc(audiobuf, chunk_bytes);
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if (audiobuf == NULL) {
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error("not enough memory");
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exit(EXIT_FAILURE);
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}
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// fprintf(stderr, "real buffer_size = %i, frags = %i, total = %i\n", buffer_size, setup.buf.block.frags, setup.buf.block.frags * buffer_size);
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// fprintf(stderr, "real chunk_size = %i, frags = %i, total = %i\n", chunk_size, setup.buf.block.frags, setup.buf.block.frags * chunk_size);
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}
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/* playback write error hander */
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@ -857,10 +860,10 @@ static ssize_t pcm_write(u_char *data, size_t count)
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ssize_t r;
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ssize_t result = 0;
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if (xrun_mode == SND_PCM_XRUN_FRAGMENT &&
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count < buffer_size) {
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snd_pcm_format_set_silence(hwparams.format, data + count * bits_per_frame / 8, (buffer_size - count) * hwparams.channels);
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count = buffer_size;
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if (sleep_min == 0 &&
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count < chunk_size) {
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snd_pcm_format_set_silence(hwparams.format, data + count * bits_per_frame / 8, (chunk_size - count) * hwparams.channels);
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count = chunk_size;
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}
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while (count > 0) {
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r = writei_func(handle, data, count);
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@ -886,14 +889,14 @@ static ssize_t pcm_writev(u_char **data, unsigned int channels, size_t count)
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ssize_t r;
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size_t result = 0;
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if (xrun_mode == SND_PCM_XRUN_FRAGMENT &&
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count != buffer_size) {
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if (sleep_min == 0 &&
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count != chunk_size) {
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unsigned int channel;
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size_t offset = count;
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size_t remaining = buffer_size - count;
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size_t remaining = chunk_size - count;
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for (channel = 0; channel < channels; channel++)
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snd_pcm_format_set_silence(hwparams.format, data[channel] + offset * bits_per_sample / 8, remaining);
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count = buffer_size;
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count = chunk_size;
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}
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while (count > 0) {
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unsigned int channel;
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@ -928,9 +931,9 @@ static ssize_t pcm_read(u_char *data, size_t rcount)
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size_t result = 0;
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size_t count = rcount;
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if (xrun_mode == SND_PCM_XRUN_FRAGMENT &&
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count != buffer_size) {
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count = buffer_size;
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if (sleep_min == 0 &&
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count != chunk_size) {
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count = chunk_size;
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}
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while (count > 0) {
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@ -958,9 +961,9 @@ static ssize_t pcm_readv(u_char **data, unsigned int channels, size_t rcount)
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size_t result = 0;
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size_t count = rcount;
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if (xrun_mode == SND_PCM_XRUN_FRAGMENT &&
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count != buffer_size) {
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count = buffer_size;
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if (sleep_min == 0 &&
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count != chunk_size) {
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count = chunk_size;
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}
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while (count > 0) {
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@ -997,14 +1000,14 @@ static ssize_t voc_pcm_write(u_char *data, size_t count)
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while (count > 0) {
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size = count;
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if (size > buffer_bytes - buffer_pos)
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size = buffer_bytes - buffer_pos;
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if (size > chunk_bytes - buffer_pos)
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size = chunk_bytes - buffer_pos;
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memcpy(audiobuf + buffer_pos, data, size);
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data += size;
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count -= size;
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buffer_pos += size;
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if (buffer_pos == buffer_bytes) {
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if ((r = pcm_write(audiobuf, buffer_size)) != buffer_size)
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if (buffer_pos == chunk_bytes) {
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if ((r = pcm_write(audiobuf, chunk_size)) != chunk_size)
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return r;
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buffer_pos = 0;
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}
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@ -1017,16 +1020,16 @@ static void voc_write_silence(unsigned x)
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unsigned l;
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char *buf;
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buf = (char *) malloc(buffer_bytes);
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buf = (char *) malloc(chunk_bytes);
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if (buf == NULL) {
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error("can't allocate buffer for silence");
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return; /* not fatal error */
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}
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snd_pcm_format_set_silence(hwparams.format, buf, buffer_size * hwparams.channels);
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snd_pcm_format_set_silence(hwparams.format, buf, chunk_size * hwparams.channels);
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while (x > 0) {
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l = x;
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if (l > buffer_size)
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l = buffer_size;
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if (l > chunk_size)
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l = chunk_size;
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if (voc_pcm_write(buf, l) != l) {
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error("write error");
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exit(EXIT_FAILURE);
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@ -1039,10 +1042,10 @@ static void voc_pcm_flush(void)
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{
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if (buffer_pos > 0) {
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size_t b;
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if (xrun_mode == SND_PCM_XRUN_FRAGMENT) {
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if (snd_pcm_format_set_silence(hwparams.format, audiobuf + buffer_pos, buffer_bytes - buffer_pos * 8 / bits_per_sample) < 0)
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if (sleep_min == 0) {
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if (snd_pcm_format_set_silence(hwparams.format, audiobuf + buffer_pos, chunk_bytes - buffer_pos * 8 / bits_per_sample) < 0)
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fprintf(stderr, "voc_pcm_flush - silence error");
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b = buffer_size;
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b = chunk_size;
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} else {
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b = buffer_pos * 8 / bits_per_frame;
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}
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@ -1078,12 +1081,12 @@ static void voc_play(int fd, int ofs, char *name)
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fprintf(stderr, "Playing Creative Labs Channel file '%s'...\n", name);
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}
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/* first we waste the rest of header, ugly but we don't need seek */
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while (ofs > buffer_bytes) {
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if (safe_read(fd, buf, buffer_bytes) != buffer_bytes) {
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while (ofs > chunk_bytes) {
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if (safe_read(fd, buf, chunk_bytes) != chunk_bytes) {
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error("read error");
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exit(EXIT_FAILURE);
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}
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ofs -= buffer_bytes;
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ofs -= chunk_bytes;
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}
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if (ofs) {
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if (safe_read(fd, buf, ofs) != ofs) {
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@ -1104,7 +1107,7 @@ static void voc_play(int fd, int ofs, char *name)
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if (in_buffer)
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memcpy(buf, data, in_buffer);
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data = buf;
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if ((l = safe_read(fd, buf + in_buffer, buffer_bytes - in_buffer)) > 0)
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if ((l = safe_read(fd, buf + in_buffer, chunk_bytes - in_buffer)) > 0)
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in_buffer += l;
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else if (!in_buffer) {
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/* the file is truncated, so simulate 'Terminator'
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@ -1482,11 +1485,11 @@ void playback_go(int fd, size_t loaded, size_t count, int rtype, char *name)
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header(rtype, name);
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set_params();
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while (loaded > buffer_bytes && written < count) {
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if (pcm_write(audiobuf + written, buffer_size) <= 0)
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while (loaded > chunk_bytes && written < count) {
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if (pcm_write(audiobuf + written, chunk_size) <= 0)
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return;
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written += buffer_bytes;
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loaded -= buffer_bytes;
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written += chunk_bytes;
|
||||
loaded -= chunk_bytes;
|
||||
}
|
||||
if (written > 0 && loaded > 0)
|
||||
memmove(audiobuf, audiobuf + written, loaded);
|
||||
|
|
@ -1495,8 +1498,8 @@ void playback_go(int fd, size_t loaded, size_t count, int rtype, char *name)
|
|||
while (written < count) {
|
||||
do {
|
||||
c = count - written;
|
||||
if (c > buffer_bytes)
|
||||
c = buffer_bytes;
|
||||
if (c > chunk_bytes)
|
||||
c = chunk_bytes;
|
||||
c -= l;
|
||||
|
||||
if (c == 0)
|
||||
|
|
@ -1509,7 +1512,7 @@ void playback_go(int fd, size_t loaded, size_t count, int rtype, char *name)
|
|||
if (r == 0)
|
||||
break;
|
||||
l += r;
|
||||
} while (xrun_mode != SND_PCM_XRUN_ASAP && l < buffer_bytes);
|
||||
} while (sleep_min == 0 && l < chunk_bytes);
|
||||
l = l * 8 / bits_per_frame;
|
||||
r = pcm_write(audiobuf, l);
|
||||
if (r != l)
|
||||
|
|
@ -1533,8 +1536,8 @@ void capture_go(int fd, size_t count, int rtype, char *name)
|
|||
|
||||
while (count > 0) {
|
||||
c = count;
|
||||
if (c > buffer_bytes)
|
||||
c = buffer_bytes;
|
||||
if (c > chunk_bytes)
|
||||
c = chunk_bytes;
|
||||
c = c * 8 / bits_per_frame;
|
||||
if ((r = pcm_read(audiobuf, c)) != c)
|
||||
break;
|
||||
|
|
@ -1635,7 +1638,7 @@ void playbackv_go(int* fds, unsigned int channels, size_t loaded, size_t count,
|
|||
header(rtype, names[0]);
|
||||
set_params();
|
||||
|
||||
vsize = buffer_bytes / channels;
|
||||
vsize = chunk_bytes / channels;
|
||||
|
||||
// Not yet implemented
|
||||
assert(loaded == 0);
|
||||
|
|
@ -1663,7 +1666,7 @@ void playbackv_go(int* fds, unsigned int channels, size_t loaded, size_t count,
|
|||
if (r == 0)
|
||||
break;
|
||||
c += r;
|
||||
} while (xrun_mode != SND_PCM_XRUN_ASAP && c < expected);
|
||||
} while (sleep_min == 0 && c < expected);
|
||||
c = c * 8 / bits_per_sample;
|
||||
r = pcm_writev(bufs, channels, c);
|
||||
if (r != c)
|
||||
|
|
@ -1685,7 +1688,7 @@ void capturev_go(int* fds, unsigned int channels, size_t count, int rtype, char
|
|||
header(rtype, names[0]);
|
||||
set_params();
|
||||
|
||||
vsize = buffer_bytes / channels;
|
||||
vsize = chunk_bytes / channels;
|
||||
|
||||
for (channel = 0; channel < channels; ++channel)
|
||||
bufs[channel] = audiobuf + vsize * channel;
|
||||
|
|
@ -1693,8 +1696,8 @@ void capturev_go(int* fds, unsigned int channels, size_t count, int rtype, char
|
|||
while (count > 0) {
|
||||
size_t rv;
|
||||
c = count;
|
||||
if (c > buffer_bytes)
|
||||
c = buffer_bytes;
|
||||
if (c > chunk_bytes)
|
||||
c = chunk_bytes;
|
||||
c = c * 8 / bits_per_frame;
|
||||
if ((r = pcm_readv(bufs, channels, c)) != c)
|
||||
break;
|
||||
|
|
|
|||
Loading…
Reference in a new issue