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#include "decoder.h"
#include <mpg123.h>
#include <stdio.h>
static gboolean mpg123_decoder_init(gpointer *data) {
mpg123_handle *handle;
int error;
mpg123_init();
handle = mpg123_new("generic", &error);
if(error) {
g_warning("Error: %s", mpg123_plain_strerror(error));
return FALSE;
}
error = mpg123_open_feed(handle);
if(error) {
g_warning("Error: %s", mpg123_plain_strerror(error));
}
/* force format for now */
mpg123_format_none(handle);
mpg123_format(handle, 44100, 2, MPG123_ENC_SIGNED_16);
*data = handle;
return TRUE;
}
static gssize mpg123_decoder_decode(gpointer data, GInputStream *input,
GOutputStream *output) {
mpg123_handle *handle = data;
gssize size;
int ret;
const int inbuf_size = 0x400*8;
const int outbuf_size = 0x400*8;
unsigned char inbuf[inbuf_size];
unsigned char outbuf[inbuf_size];
gsize inbuf_read = g_input_stream_read(input, inbuf, inbuf_size, NULL, NULL);
if(mpg123_feed(handle, inbuf, inbuf_read) != MPG123_OK) {
g_debug("asdfasdf");
g_warning(mpg123_strerror(handle));
return -1;
}
ret = mpg123_read(handle, outbuf, outbuf_size, (size_t*)&size);
if(ret == MPG123_NEW_FORMAT) {
long rate;
int channels, enc;
mpg123_getformat(handle, &rate, &channels, &enc);
g_debug("New format: %li Hz, %i channels, encoding value %i", rate, channels, enc);
ret = mpg123_read(handle, outbuf, outbuf_size, (size_t*)&size);
}
if(ret != MPG123_OK && ret != MPG123_DONE && ret != MPG123_NEW_FORMAT
&& ret != MPG123_NEED_MORE) {
g_warning(mpg123_plain_strerror(ret));
return -1;
}
g_output_stream_write(output, outbuf, size, NULL, NULL);
return size;
}
static void mpg123_decoder_close(gpointer data) {
mpg123_handle *handle = data;
mpg123_close(handle);
mpg123_delete(handle);
}
static const gchar * const decoder_mpg123_extensions[] = {
"mp3", NULL,
};
const struct decoder_plugin decoder_mpg123_decoder = {
.name = "mpg123",
.extensions = decoder_mpg123_extensions,
.init = mpg123_decoder_init,
.decode = mpg123_decoder_decode,
.close = mpg123_decoder_close,
};
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