static FLAC__bool
flac_eof_cb(G_GNUC_UNUSED const FLAC__StreamDecoder *fd, void *fdata)
{
struct flac_data *data = (struct flac_data *) fdata;
return (decoder_get_command(data->decoder) != DECODE_COMMAND_NONE &&
decoder_get_command(data->decoder) != DECODE_COMMAND_SEEK) ||
input_stream_lock_eof(data->input_stream);
}
static GByteArray *mod_loadfile(struct decoder *decoder, struct input_stream *is)
{
unsigned char *data;
GByteArray *bdatas;
size_t ret;
if (is->size == 0) {
g_warning("file is empty");
return NULL;
}
if (is->size > MODPLUG_FILE_LIMIT) {
g_warning("file too large");
return NULL;
}
//known/unknown size, preallocate array, lets read in chunks
if (is->size > 0) {
bdatas = g_byte_array_sized_new(is->size);
} else {
bdatas = g_byte_array_sized_new(MODPLUG_PREALLOC_BLOCK);
}
data = g_malloc(MODPLUG_READ_BLOCK);
while (true) {
ret = decoder_read(decoder, is, data, MODPLUG_READ_BLOCK);
if (ret == 0) {
if (input_stream_lock_eof(is))
/* end of file */
break;
/* I/O error - skip this song */
g_free(data);
g_byte_array_free(bdatas, true);
return NULL;
}
if (bdatas->len + ret > MODPLUG_FILE_LIMIT) {
g_warning("stream too large\n");
g_free(data);
g_byte_array_free(bdatas, TRUE);
return NULL;
}
g_byte_array_append(bdatas, data, ret);
}
g_free(data);
return bdatas;
}
static FLAC__StreamDecoderReadStatus
flac_read_cb(G_GNUC_UNUSED const FLAC__StreamDecoder *fd,
FLAC__byte buf[], flac_read_status_size_t *bytes,
void *fdata)
{
struct flac_data *data = fdata;
size_t r;
r = decoder_read(data->decoder, data->input_stream,
(void *)buf, *bytes);
*bytes = r;
if (r == 0) {
if (decoder_get_command(data->decoder) != DECODE_COMMAND_NONE ||
input_stream_lock_eof(data->input_stream))
return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
else
return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
}
return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
}
static void
pcm_stream_decode(struct decoder *decoder, struct input_stream *is)
{
static const struct audio_format audio_format = {
.sample_rate = 44100,
.format = SAMPLE_FORMAT_S16,
.channels = 2,
};
const bool reverse_endian = is->mime != NULL &&
strcmp(is->mime, "audio/x-mpd-cdda-pcm-reverse") == 0;
GError *error = NULL;
enum decoder_command cmd;
double time_to_size = audio_format_time_to_size(&audio_format);
float total_time = -1;
if (is->size >= 0)
total_time = is->size / time_to_size;
decoder_initialized(decoder, &audio_format, is->seekable, total_time);
do {
char buffer[4096];
size_t nbytes = decoder_read(decoder, is,
buffer, sizeof(buffer));
if (nbytes == 0 && input_stream_lock_eof(is))
break;
if (reverse_endian)
/* make sure we deliver samples in host byte order */
reverse_bytes_16((uint16_t *)buffer,
(uint16_t *)buffer,
(uint16_t *)(buffer + nbytes));
cmd = nbytes > 0
? decoder_data(decoder, is,
buffer, nbytes, 0)
: decoder_get_command(decoder);
if (cmd == DECODE_COMMAND_SEEK) {
goffset offset = (goffset)(time_to_size *
decoder_seek_where(decoder));
if (input_stream_lock_seek(is, offset, SEEK_SET,
&error)) {
decoder_command_finished(decoder);
} else {
g_warning("seeking failed: %s", error->message);
g_error_free(error);
decoder_seek_error(decoder);
}
cmd = DECODE_COMMAND_NONE;
}
} while (cmd == DECODE_COMMAND_NONE);
}
static const char *const pcm_mime_types[] = {
/* for streams obtained by the cdio_paranoia input plugin */
"audio/x-mpd-cdda-pcm",
/* same as above, but with reverse byte order */
"audio/x-mpd-cdda-pcm-reverse",
NULL
};
const struct decoder_plugin pcm_decoder_plugin = {
.name = "pcm",
.stream_decode = pcm_stream_decode,
.mime_types = pcm_mime_types,
};
