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when playing an ULAW or ALAW audio file, do not convert to S16NE unconditionally, instead use sf_read_raw() to read raw audio data

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@898 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2006-05-17 14:06:12 +00:00
parent 106fb20d56
commit 31a9d4fb30
1 changed files with 35 additions and 22 deletions
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57
src/utils/paplay.c
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@ -57,7 +57,7 @@ static pa_sample_spec sample_spec = { 0, 0, 0 };
static pa_channel_map channel_map;
static int channel_map_set = 0;
static sf_count_t (*readf_function)(SNDFILE *_sndfile, void *ptr, sf_count_t frames);
static sf_count_t (*readf_function)(SNDFILE *_sndfile, void *ptr, sf_count_t frames) = NULL;
/* A shortcut for terminating the application */
static void quit(int ret) {
@ -98,26 +98,30 @@ static void stream_drain_complete(pa_stream*s, int success, void *userdata) {
/* This is called whenever new data may be written to the stream */
static void stream_write_callback(pa_stream *s, size_t length, void *userdata) {
size_t k;
sf_count_t f, n;
sf_count_t bytes;
void *data;
assert(s && length);
if (!sndfile)
return;
k = pa_frame_size(&sample_spec);
data = malloc(length);
n = length/k;
f = readf_function(sndfile, data, n);
if (readf_function) {
size_t k = pa_frame_size(&sample_spec);
if (f > 0)
pa_stream_write(s, data, f*k, free, 0, PA_SEEK_RELATIVE);
if ((bytes = readf_function(sndfile, data, length/k)) > 0)
bytes *= k;
} else
bytes = sf_read_raw(sndfile, data, length);
if (f < n) {
if (bytes > 0)
pa_stream_write(s, data, bytes, free, 0, PA_SEEK_RELATIVE);
else
free(data);
if (bytes < length) {
sf_close(sndfile);
sndfile = NULL;
pa_operation_unref(pa_stream_drain(s, stream_drain_complete, NULL));
@ -296,16 +300,8 @@ int main(int argc, char *argv[]) {
}
}
filename = optind < argc ? argv[optind] : "STDIN";
if (!client_name)
client_name = strdup(bn);
if (!stream_name)
stream_name = strdup(filename);
memset(&sfinfo, 0, sizeof(sfinfo));
if (optind < argc)
@ -317,18 +313,27 @@ int main(int argc, char *argv[]) {
fprintf(stderr, "Failed to open file '%s'\n", filename);
goto quit;
}
sample_spec.rate = sfinfo.samplerate;
sample_spec.channels = sfinfo.channels;
switch (sfinfo.format & 0xFF) {
case SF_FORMAT_PCM_16:
case SF_FORMAT_PCM_U8:
case SF_FORMAT_ULAW:
case SF_FORMAT_ALAW:
sample_spec.format = PA_SAMPLE_S16NE;
readf_function = (sf_count_t (*)(SNDFILE *_sndfile, void *ptr, sf_count_t frames)) sf_readf_short;
break;
case SF_FORMAT_ULAW:
sample_spec.format = PA_SAMPLE_ULAW;
readf_function = NULL;
break;
case SF_FORMAT_ALAW:
sample_spec.format = PA_SAMPLE_ALAW;
readf_function = NULL;
break;
case SF_FORMAT_FLOAT:
default:
sample_spec.format = PA_SAMPLE_FLOAT32NE;
@ -343,6 +348,14 @@ int main(int argc, char *argv[]) {
goto quit;
}
if (!client_name)
client_name = strdup(bn);
if (!stream_name) {
const char *n = sf_get_string(sndfile, SF_STR_TITLE);
stream_name = strdup(n ? n : filename);
}
if (verbose) {
char t[PA_SAMPLE_SPEC_SNPRINT_MAX];
pa_sample_spec_snprint(t, sizeof(t), &sample_spec);