renamed decoder plugin sources

Make it X_decoder_plugin.c.

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 00000000..502448a1
--- /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 (!flac_data_get_audio_format(&data, &audio_format))
+		goto fail;
+
+	decoder_initialized(mpd_decoder, &audio_format,
+			    input_stream->seekable,
+			    (float)data.stream_info.total_samples /
+			    (float)data.stream_info.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.stream_info.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
+};