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, };