78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
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/* pipe raw PCM audio data here, it will be output to
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* the default audio output device.
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*/
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#include "output.h"
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#include <string.h>
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#include <stdio.h>
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extern mpg123_module_t mpg123_output_module_info;
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int main () {
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int r;
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char buffer[4096];
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fprintf(stderr, "api_version: %d\n", mpg123_output_module_info.api_version);
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fprintf(stderr, "name: %s\n", mpg123_output_module_info.name);
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fprintf(stderr, "description: %s\n", mpg123_output_module_info.description);
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fprintf(stderr, "revision: %s\n", mpg123_output_module_info.revision);
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fprintf(stderr, "\n\n");
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audio_output_t ao;
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memset(&ao, 0, sizeof(audio_output_t)); /* nullify all fields */
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ao.channels = 2; /* channels */
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ao.rate = 44100; /* rample rate */
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ao.format = MPG123_ENC_SIGNED_16; /* bit depth, is signed?, int/float */
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/* init_output() */
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r = mpg123_output_module_info.init_output(&ao);
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if (r) {
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fprintf(stderr, "init_output() failed: %d\n", r);
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return r;
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}
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fprintf(stderr, "ao.get_formats(): %d\n", ao.get_formats(&ao));
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/* open() */
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r = ao.open(&ao);
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if (r) {
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fprintf(stderr, "ao.open() failed: %d\n", r);
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return r;
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}
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while (1) {
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size_t b = fread(buffer, sizeof(char), sizeof(buffer) / sizeof(char), stdin);
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if (b == 0) {
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fprintf(stderr, "got EOF\n");
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break;
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}
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fprintf(stderr, "read %zu bytes\n", b);
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/* write */
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r = ao.write(&ao, buffer, b);
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if (r != b) {
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fprintf(stderr, "ao.write() failed: %d\n", r);
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return r;
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}
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}
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/* flush() */
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ao.flush(&ao);
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/* close() */
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r = ao.close(&ao);
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if (r) {
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fprintf(stderr, "ao.close() failed: %d\n", r);
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return r;
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}
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/* deinit() */
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r = ao.deinit(&ao);
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if (r) {
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fprintf(stderr, "ao.deinit() failed: %d\n", r);
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return r;
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}
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fprintf(stderr, "Done!\n");
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return 0;
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}
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