aboutsummaryrefslogtreecommitdiffstats
path: root/src/decoder/oggflac_decoder_plugin.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/decoder/oggflac_decoder_plugin.c')
-rw-r--r--src/decoder/oggflac_decoder_plugin.c354
1 files changed, 354 insertions, 0 deletions
diff --git a/src/decoder/oggflac_decoder_plugin.c b/src/decoder/oggflac_decoder_plugin.c
new file mode 100644
index 000000000..7e5f48318
--- /dev/null
+++ b/src/decoder/oggflac_decoder_plugin.c
@@ -0,0 +1,354 @@
+/*
+ * Copyright (C) 2003-2010 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * OggFLAC support (half-stolen from flac_plugin.c :))
+ */
+
+#include "config.h" /* must be first for large file support */
+#include "_flac_common.h"
+#include "_ogg_common.h"
+#include "flac_metadata.h"
+
+#include <glib.h>
+#include <OggFLAC/seekable_stream_decoder.h>
+#include <assert.h>
+#include <unistd.h>
+
+static void oggflac_cleanup(OggFLAC__SeekableStreamDecoder * decoder)
+{
+ if (decoder)
+ OggFLAC__seekable_stream_decoder_delete(decoder);
+}
+
+static OggFLAC__SeekableStreamDecoderReadStatus of_read_cb(G_GNUC_UNUSED const
+ OggFLAC__SeekableStreamDecoder
+ * decoder,
+ FLAC__byte buf[],
+ unsigned *bytes,
+ void *fdata)
+{
+ struct flac_data *data = (struct flac_data *) fdata;
+ size_t r;
+
+ r = decoder_read(data->decoder, data->input_stream,
+ (void *)buf, *bytes);
+ *bytes = r;
+
+ if (r == 0 && !input_stream_eof(data->input_stream) &&
+ decoder_get_command(data->decoder) == DECODE_COMMAND_NONE)
+ return OggFLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR;
+
+ return OggFLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK;
+}
+
+static OggFLAC__SeekableStreamDecoderSeekStatus of_seek_cb(G_GNUC_UNUSED const
+ OggFLAC__SeekableStreamDecoder
+ * decoder,
+ FLAC__uint64 offset,
+ void *fdata)
+{
+ struct flac_data *data = (struct flac_data *) fdata;
+
+ if (!input_stream_seek(data->input_stream, offset, SEEK_SET, NULL))
+ return OggFLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR;
+
+ return OggFLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK;
+}
+
+static OggFLAC__SeekableStreamDecoderTellStatus of_tell_cb(G_GNUC_UNUSED const
+ OggFLAC__SeekableStreamDecoder
+ * decoder,
+ FLAC__uint64 *
+ offset, void *fdata)
+{
+ struct flac_data *data = (struct flac_data *) fdata;
+
+ *offset = (long)(data->input_stream->offset);
+
+ return OggFLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK;
+}
+
+static OggFLAC__SeekableStreamDecoderLengthStatus of_length_cb(G_GNUC_UNUSED const
+ OggFLAC__SeekableStreamDecoder
+ * decoder,
+ FLAC__uint64 *
+ length,
+ void *fdata)
+{
+ struct flac_data *data = (struct flac_data *) fdata;
+
+ if (data->input_stream->size < 0)
+ return OggFLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR;
+
+ *length = (size_t) (data->input_stream->size);
+
+ return OggFLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK;
+}
+
+static FLAC__bool of_EOF_cb(G_GNUC_UNUSED const OggFLAC__SeekableStreamDecoder * decoder,
+ 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_eof(data->input_stream);
+}
+
+static void of_error_cb(G_GNUC_UNUSED const OggFLAC__SeekableStreamDecoder * decoder,
+ FLAC__StreamDecoderErrorStatus status, void *fdata)
+{
+ flac_error_common_cb("oggflac", status, (struct flac_data *) fdata);
+}
+
+static void oggflacPrintErroredState(OggFLAC__SeekableStreamDecoderState state)
+{
+ switch (state) {
+ case OggFLAC__SEEKABLE_STREAM_DECODER_MEMORY_ALLOCATION_ERROR:
+ g_warning("oggflac allocation error\n");
+ break;
+ case OggFLAC__SEEKABLE_STREAM_DECODER_READ_ERROR:
+ g_warning("oggflac read error\n");
+ break;
+ case OggFLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR:
+ g_warning("oggflac seek error\n");
+ break;
+ case OggFLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR:
+ g_warning("oggflac seekable stream error\n");
+ break;
+ case OggFLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED:
+ g_warning("oggflac decoder already initialized\n");
+ break;
+ case OggFLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK:
+ g_warning("invalid oggflac callback\n");
+ break;
+ case OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED:
+ g_warning("oggflac decoder uninitialized\n");
+ break;
+ case OggFLAC__SEEKABLE_STREAM_DECODER_OK:
+ case OggFLAC__SEEKABLE_STREAM_DECODER_SEEKING:
+ case OggFLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM:
+ break;
+ }
+}
+
+static FLAC__StreamDecoderWriteStatus
+oggflac_write_cb(G_GNUC_UNUSED const OggFLAC__SeekableStreamDecoder *decoder,
+ const FLAC__Frame *frame, const FLAC__int32 *const buf[],
+ void *vdata)
+{
+ struct flac_data *data = (struct flac_data *) vdata;
+
+ return flac_common_write(data, frame, buf, 0);
+}
+
+/* used by TagDup */
+static void of_metadata_dup_cb(G_GNUC_UNUSED const OggFLAC__SeekableStreamDecoder * decoder,
+ const FLAC__StreamMetadata * block, void *vdata)
+{
+ struct flac_data *data = (struct flac_data *) vdata;
+
+ assert(data->tag != NULL);
+
+ flac_tag_apply_metadata(data->tag, NULL, block);
+}
+
+/* used by decode */
+static void of_metadata_decode_cb(G_GNUC_UNUSED const OggFLAC__SeekableStreamDecoder * dec,
+ const FLAC__StreamMetadata * block,
+ void *vdata)
+{
+ flac_metadata_common_cb(block, (struct flac_data *) vdata);
+}
+
+static OggFLAC__SeekableStreamDecoder *
+full_decoder_init_and_read_metadata(struct flac_data *data,
+ unsigned int metadata_only)
+{
+ OggFLAC__SeekableStreamDecoder *decoder = NULL;
+ unsigned int s = 1;
+
+ if (!(decoder = OggFLAC__seekable_stream_decoder_new()))
+ return NULL;
+
+ if (metadata_only) {
+ s &= OggFLAC__seekable_stream_decoder_set_metadata_callback
+ (decoder, of_metadata_dup_cb);
+ s &= OggFLAC__seekable_stream_decoder_set_metadata_respond
+ (decoder, FLAC__METADATA_TYPE_STREAMINFO);
+ } else {
+ s &= OggFLAC__seekable_stream_decoder_set_metadata_callback
+ (decoder, of_metadata_decode_cb);
+ }
+
+ s &= OggFLAC__seekable_stream_decoder_set_read_callback(decoder,
+ of_read_cb);
+ s &= OggFLAC__seekable_stream_decoder_set_seek_callback(decoder,
+ of_seek_cb);
+ s &= OggFLAC__seekable_stream_decoder_set_tell_callback(decoder,
+ of_tell_cb);
+ s &= OggFLAC__seekable_stream_decoder_set_length_callback(decoder,
+ of_length_cb);
+ s &= OggFLAC__seekable_stream_decoder_set_eof_callback(decoder,
+ of_EOF_cb);
+ s &= OggFLAC__seekable_stream_decoder_set_write_callback(decoder,
+ oggflac_write_cb);
+ s &= OggFLAC__seekable_stream_decoder_set_metadata_respond(decoder,
+ FLAC__METADATA_TYPE_VORBIS_COMMENT);
+ s &= OggFLAC__seekable_stream_decoder_set_error_callback(decoder,
+ of_error_cb);
+ s &= OggFLAC__seekable_stream_decoder_set_client_data(decoder,
+ (void *)data);
+
+ if (!s) {
+ g_warning("oggflac problem before init()\n");
+ goto fail;
+ }
+ if (OggFLAC__seekable_stream_decoder_init(decoder) !=
+ OggFLAC__SEEKABLE_STREAM_DECODER_OK) {
+ g_warning("oggflac problem doing init()\n");
+ goto fail;
+ }
+ if (!OggFLAC__seekable_stream_decoder_process_until_end_of_metadata
+ (decoder)) {
+ g_warning("oggflac problem reading metadata\n");
+ goto fail;
+ }
+
+ return decoder;
+
+fail:
+ oggflacPrintErroredState(OggFLAC__seekable_stream_decoder_get_state
+ (decoder));
+ OggFLAC__seekable_stream_decoder_delete(decoder);
+ return NULL;
+}
+
+/* public functions: */
+static struct tag *
+oggflac_stream_tag(struct input_stream *is)
+{
+ OggFLAC__SeekableStreamDecoder *decoder;
+ struct flac_data data;
+ struct tag *tag;
+
+ if (ogg_stream_type_detect(is) != FLAC)
+ return NULL;
+
+ /* rewind the stream, because ogg_stream_type_detect() has
+ moved it */
+ input_stream_seek(is, 0, SEEK_SET, NULL);
+
+ flac_data_init(&data, NULL, is);
+
+ data.tag = tag_new();
+
+ /* errors here won't matter,
+ * data.tag will be set or unset, that's all we care about */
+ decoder = full_decoder_init_and_read_metadata(&data, 1);
+
+ oggflac_cleanup(decoder);
+
+ if (tag_is_defined(data.tag)) {
+ tag = data.tag;
+ data.tag = NULL;
+ } else
+ tag = NULL;
+
+ flac_data_deinit(&data);
+
+ return tag;
+}
+
+static void
+oggflac_decode(struct decoder * mpd_decoder, struct input_stream *input_stream)
+{
+ OggFLAC__SeekableStreamDecoder *decoder = NULL;
+ struct flac_data data;
+ struct audio_format audio_format;
+
+ if (ogg_stream_type_detect(input_stream) != FLAC)
+ return;
+
+ /* rewind the stream, because ogg_stream_type_detect() has
+ moved it */
+ input_stream_seek(input_stream, 0, SEEK_SET, NULL);
+
+ flac_data_init(&data, mpd_decoder, input_stream);
+
+ if (!(decoder = full_decoder_init_and_read_metadata(&data, 0))) {
+ goto fail;
+ }
+
+ if (!data.initialized)
+ goto fail;
+
+ decoder_initialized(mpd_decoder, &audio_format,
+ input_stream->seekable,
+ (float)data.total_frames /
+ (float)data.audio_format.sample_rate);
+
+ while (true) {
+ OggFLAC__seekable_stream_decoder_process_single(decoder);
+ if (OggFLAC__seekable_stream_decoder_get_state(decoder) !=
+ OggFLAC__SEEKABLE_STREAM_DECODER_OK) {
+ break;
+ }
+ if (decoder_get_command(mpd_decoder) == DECODE_COMMAND_SEEK) {
+ FLAC__uint64 seek_sample = decoder_seek_where(mpd_decoder) *
+ data.audio_format.sample_rate;
+ if (OggFLAC__seekable_stream_decoder_seek_absolute
+ (decoder, seek_sample)) {
+ data.next_frame = seek_sample;
+ data.position = 0;
+ decoder_command_finished(mpd_decoder);
+ } else
+ decoder_seek_error(mpd_decoder);
+ }
+ }
+
+ if (decoder_get_command(mpd_decoder) == DECODE_COMMAND_NONE) {
+ oggflacPrintErroredState
+ (OggFLAC__seekable_stream_decoder_get_state(decoder));
+ OggFLAC__seekable_stream_decoder_finish(decoder);
+ }
+
+fail:
+ oggflac_cleanup(decoder);
+ flac_data_deinit(&data);
+}
+
+static const char *const oggflac_suffixes[] = { "ogg", "oga", NULL };
+static const char *const oggflac_mime_types[] = {
+ "application/ogg",
+ "application/x-ogg",
+ "audio/ogg",
+ "audio/x-ogg",
+ "audio/x-flac+ogg",
+ NULL
+};
+
+const struct decoder_plugin oggflac_decoder_plugin = {
+ .name = "oggflac",
+ .stream_decode = oggflac_decode,
+ .stream_tag = oggflac_stream_tag,
+ .suffixes = oggflac_suffixes,
+ .mime_types = oggflac_mime_types
+};