merge with mpd/trunk up to r3925

git-svn-id: https://svn.musicpd.org/mpd/trunk@3926 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 426 insertions, 0 deletions

diff --git a/src/inputPlugins/oggflac_plugin.c b/src/inputPlugins/oggflac_plugin.c
new file mode 100644
index 000000000..25f9a3cdb
--- /dev/null
+++ b/src/inputPlugins/oggflac_plugin.c
@@ -0,0 +1,426 @@
+/* the Music Player Daemon (MPD)
+ * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
+ * This project's homepage is: http://www.musicpd.org
+ *
+ * OggFLAC support (half-stolen from flac_plugin.c :))
+ * (c) 2005 by Eric Wong <normalperson@yhbt.net>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "../inputPlugin.h"
+
+#ifdef HAVE_OGGFLAC
+
+#include "_flac_common.h"
+#include "_ogg_common.h"
+
+#include "../utils.h"
+#include "../log.h"
+#include "../pcm_utils.h"
+#include "../inputStream.h"
+#include "../outputBuffer.h"
+#include "../replayGain.h"
+#include "../audio.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <OggFLAC/seekable_stream_decoder.h>
+#include <FLAC/metadata.h>
+
+static void oggflac_cleanup(InputStream * inStream,
+		FlacData * data,
+		OggFLAC__SeekableStreamDecoder * decoder)
+{
+	if (data->replayGainInfo)
+		freeReplayGainInfo(data->replayGainInfo);
+	if (decoder)
+		OggFLAC__seekable_stream_decoder_delete(decoder);
+	closeInputStream(inStream);
+}
+
+static OggFLAC__SeekableStreamDecoderReadStatus of_read_cb(
+                const OggFLAC__SeekableStreamDecoder * decoder,
+		FLAC__byte buf[], unsigned * bytes, void * fdata) {
+	FlacData * data = (FlacData *) fdata;
+	size_t r;
+
+	while (1) {
+		r = readFromInputStream(data->inStream,(void *)buf,1,*bytes);
+		if (r == 0 && !inputStreamAtEOF(data->inStream) &&
+				!data->dc->stop)
+			my_usleep(10000);
+		else
+			break;
+	}
+	*bytes = r;
+        
+	if (r == 0 && !inputStreamAtEOF(data->inStream) && !data->dc->stop)
+		return OggFLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR;
+        
+        return OggFLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK;
+}
+
+static OggFLAC__SeekableStreamDecoderSeekStatus of_seek_cb(
+                const OggFLAC__SeekableStreamDecoder * decoder, 
+                FLAC__uint64 offset, void * fdata) 
+{
+	FlacData * data = (FlacData *) fdata;
+
+        if(seekInputStream(data->inStream,offset,SEEK_SET)<0) {
+                return OggFLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR;
+        }
+
+        return OggFLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK;
+}
+
+static OggFLAC__SeekableStreamDecoderTellStatus of_tell_cb(
+                const OggFLAC__SeekableStreamDecoder * decoder, 
+                FLAC__uint64 * offset, void * fdata) 
+{
+	FlacData * data = (FlacData *) fdata;
+
+        *offset = (long)(data->inStream->offset);
+
+        return OggFLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK;
+}
+
+static OggFLAC__SeekableStreamDecoderLengthStatus of_length_cb(
+                const OggFLAC__SeekableStreamDecoder * decoder, 
+                FLAC__uint64 * length, void * fdata)
+{
+	FlacData * data = (FlacData *) fdata;
+
+        *length = (size_t)(data->inStream->size);
+
+        return OggFLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK;
+}
+
+static FLAC__bool of_EOF_cb(const OggFLAC__SeekableStreamDecoder * decoder,
+		void * fdata) {
+	FlacData * data = (FlacData *) fdata;
+
+	if (inputStreamAtEOF(data->inStream) == 1)
+                return true;
+	return false;
+}
+
+static void of_error_cb(const OggFLAC__SeekableStreamDecoder * decoder, 
+                FLAC__StreamDecoderErrorStatus status, void *fdata) 
+{
+	flac_error_common_cb("oggflac",status,(FlacData *) fdata);
+}
+
+static void oggflacPrintErroredState(OggFLAC__SeekableStreamDecoderState state) 
+{
+	switch(state) {
+	case OggFLAC__SEEKABLE_STREAM_DECODER_MEMORY_ALLOCATION_ERROR:
+		ERROR("oggflac allocation error\n");
+		break;
+	case OggFLAC__SEEKABLE_STREAM_DECODER_READ_ERROR:
+		ERROR("oggflac read error\n");
+		break;
+	case OggFLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR:
+		ERROR("oggflac seek error\n");
+		break;
+	case OggFLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR:
+		ERROR("oggflac seekable stream error\n");
+		break;
+	case OggFLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED:
+		ERROR("oggflac decoder already initialized\n");
+		break;
+	case OggFLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK:
+		ERROR("invalid oggflac callback\n");
+		break;
+	case OggFLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED:
+		ERROR("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 oggflacWrite(
+		const OggFLAC__SeekableStreamDecoder *decoder,
+                const FLAC__Frame *frame, const FLAC__int32 * const buf[], 
+                void * vdata) 
+{
+	FlacData * data = (FlacData *)vdata;
+	FLAC__uint32 samples = frame->header.blocksize;
+	FLAC__uint16 u16;
+	unsigned char * uc;
+	int c_samp, c_chan, d_samp;
+	int i;
+	float timeChange;
+	const int bytesPerSample = data->dc->audioFormat.bits/8;
+	
+	timeChange = ((float)samples)/frame->header.sample_rate;
+	data->time+= timeChange;
+
+	/* ogg123 uses a complicated method of calculating bitrate
+	 * with averaging which I'm not too fond of.
+	 * (waste of memory/CPU cycles, especially given this is _lossless_)
+	 * a get_decode_position() is not available in OggFLAC, either
+	 *
+	 * this does not give an accurate bitrate:
+	 * (bytes_last_read was set in the read callback)
+	data->bitRate = ((8.0 * data->bytes_last_read *
+				frame->header.sample_rate)
+			/((float)samples * 1000)) + 0.5;
+	*/
+	
+	for(c_samp = d_samp = 0; c_samp < frame->header.blocksize; c_samp++) {
+		for(c_chan = 0; c_chan < frame->header.channels; 
+				c_chan++, d_samp++) {
+			u16 = buf[c_chan][c_samp];
+			uc = (unsigned char *)&u16;
+			for(i=0;i<(data->dc->audioFormat.bits/8);i++) {
+				if(data->chunk_length>=FLAC_CHUNK_SIZE) {
+					if(flacSendChunk(data)<0) {
+						return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
+					}
+					data->chunk_length = 0;
+					if(data->dc->seek) {
+						return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
+					}
+				}
+				data->chunk[data->chunk_length++] = *(uc++);
+			}
+		}
+	}
+
+	return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
+}
+
+/* used by TagDup */
+static void of_metadata_dup_cb(
+		const OggFLAC__SeekableStreamDecoder * decoder, 
+                const FLAC__StreamMetadata *block, void *vdata) 
+{
+	FlacData * data = (FlacData *)vdata;
+
+        switch(block->type) {
+        case FLAC__METADATA_TYPE_STREAMINFO:
+		if (!data->tag) data->tag = newMpdTag();
+		data->tag->time = ((float)block->data.stream_info.
+					total_samples) /
+					block->data.stream_info.sample_rate +
+					0.5;
+		return;
+        case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+		copyVorbisCommentBlockToMpdTag(block,data->tag);
+	default:
+		break;
+        }
+}
+
+/* used by decode */
+static void of_metadata_decode_cb(const OggFLAC__SeekableStreamDecoder * dec,
+                const FLAC__StreamMetadata *block, void *vdata) 
+{
+	flac_metadata_common_cb(block, (FlacData *)vdata);
+}
+
+static OggFLAC__SeekableStreamDecoder * full_decoder_init_and_read_metadata(
+		FlacData * 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,
+                        oggflacWrite);
+	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) {
+		ERROR("oggflac problem before init()\n");
+		goto fail;
+	}
+	if (OggFLAC__seekable_stream_decoder_init(decoder) !=
+				OggFLAC__SEEKABLE_STREAM_DECODER_OK)
+	{
+		ERROR("oggflac problem doing init()\n");
+		goto fail;
+	}
+	if (!OggFLAC__seekable_stream_decoder_process_until_end_of_metadata(
+				decoder)) {
+		ERROR("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 MpdTag * oggflac_TagDup(char * file)
+{
+	InputStream inStream;
+	OggFLAC__SeekableStreamDecoder * decoder;
+	FlacData data;
+	
+	if (openInputStream(&inStream, file) < 0)
+		return NULL;
+	if (ogg_stream_type_detect(&inStream) != FLAC) {
+		closeInputStream(&inStream);
+		return NULL;
+	}
+
+	init_FlacData(&data, NULL, NULL, &inStream);
+
+	/* 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(&inStream, &data, decoder);
+	
+	return data.tag;
+}
+
+static unsigned int oggflac_try_decode(InputStream * inStream)
+{
+	return (ogg_stream_type_detect(inStream) == FLAC) ? 1 : 0;
+}
+
+static int oggflac_decode(OutputBuffer * cb, DecoderControl * dc,
+		InputStream * inStream)
+{
+	OggFLAC__SeekableStreamDecoder * decoder = NULL;
+	FlacData data;
+        int ret = 0;
+
+	init_FlacData(&data, cb, dc, inStream);
+
+	if(!(decoder = full_decoder_init_and_read_metadata(&data,0))){
+                ret = -1;
+                goto fail;
+        }
+
+	dc->state = DECODE_STATE_DECODE;
+
+	while(1) {
+		OggFLAC__seekable_stream_decoder_process_single(decoder);
+		if(OggFLAC__seekable_stream_decoder_get_state(decoder)!=
+				OggFLAC__SEEKABLE_STREAM_DECODER_OK)
+		{
+			break;
+		}
+		if(dc->seek) {
+			FLAC__uint64 sampleToSeek = dc->seekWhere*
+					dc->audioFormat.sampleRate+0.5;
+			if(OggFLAC__seekable_stream_decoder_seek_absolute(
+						decoder, sampleToSeek))
+			{
+                                clearOutputBuffer(cb);
+				data.time = ((float)sampleToSeek)/
+					dc->audioFormat.sampleRate;
+				data.position = 0;
+			}
+                        else dc->seekError = 1;
+			dc->seek = 0;
+		}
+	}
+	
+	if(!dc->stop) {
+		oggflacPrintErroredState(
+                        OggFLAC__seekable_stream_decoder_get_state(decoder));
+		OggFLAC__seekable_stream_decoder_finish(decoder);
+	}
+	/* send last little bit */
+	if(data.chunk_length>0 && !dc->stop) {
+		flacSendChunk(&data);
+		flushOutputBuffer(data.cb);
+	}
+
+	dc->state = DECODE_STATE_STOP;
+	dc->stop = 0;
+
+fail:
+	oggflac_cleanup(inStream, &data, decoder);
+
+	return ret;
+}
+
+static char * oggflac_Suffixes[] = {"ogg", NULL};
+static char * oggflac_mime_types[] = {"application/ogg", NULL};
+
+InputPlugin oggflacPlugin = 
+{
+	"oggflac",
+	NULL,
+	NULL,
+	oggflac_try_decode,
+	oggflac_decode,
+	NULL,
+	oggflac_TagDup,
+	INPUT_PLUGIN_STREAM_URL | INPUT_PLUGIN_STREAM_FILE,
+	oggflac_Suffixes,
+	oggflac_mime_types
+};
+
+#else /* !HAVE_FLAC */
+
+InputPlugin oggflacPlugin =
+{
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	NULL,
+	0,
+	NULL,
+	NULL,
+};
+
+#endif /* HAVE_OGGFLAC */
+