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-rw-r--r--src/inputPlugins/oggflac_plugin.c426
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
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+/* 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 */
+