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-rw-r--r--src/decoder/oggvorbis_plugin.c387
1 files changed, 387 insertions, 0 deletions
diff --git a/src/decoder/oggvorbis_plugin.c b/src/decoder/oggvorbis_plugin.c
new file mode 100644
index 000000000..0eecb783f
--- /dev/null
+++ b/src/decoder/oggvorbis_plugin.c
@@ -0,0 +1,387 @@
+/* the Music Player Daemon (MPD)
+ * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
+ * This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* TODO 'ogg' should probably be replaced with 'oggvorbis' in all instances */
+
+#include "_ogg_common.h"
+#include "../utils.h"
+#include "../log.h"
+
+#ifndef HAVE_TREMOR
+#include <vorbis/vorbisfile.h>
+#else
+#include <tremor/ivorbisfile.h>
+/* Macros to make Tremor's API look like libogg. Tremor always
+ returns host-byte-order 16-bit signed data, and uses integer
+ milliseconds where libogg uses double seconds.
+*/
+#define ov_read(VF, BUFFER, LENGTH, BIGENDIANP, WORD, SGNED, BITSTREAM) \
+ ov_read(VF, BUFFER, LENGTH, BITSTREAM)
+#define ov_time_total(VF, I) ((double)ov_time_total(VF, I)/1000)
+#define ov_time_tell(VF) ((double)ov_time_tell(VF)/1000)
+#define ov_time_seek_page(VF, S) (ov_time_seek_page(VF, (S)*1000))
+#endif /* HAVE_TREMOR */
+
+#ifdef WORDS_BIGENDIAN
+#define OGG_DECODE_USE_BIGENDIAN 1
+#else
+#define OGG_DECODE_USE_BIGENDIAN 0
+#endif
+
+typedef struct _OggCallbackData {
+ InputStream *inStream;
+ struct decoder *decoder;
+} OggCallbackData;
+
+static size_t ogg_read_cb(void *ptr, size_t size, size_t nmemb, void *vdata)
+{
+ size_t ret;
+ OggCallbackData *data = (OggCallbackData *) vdata;
+
+ ret = decoder_read(data->decoder, data->inStream, ptr, size * nmemb);
+
+ errno = 0;
+ /*if(ret<0) errno = ((InputStream *)inStream)->error; */
+
+ return ret / size;
+}
+
+static int ogg_seek_cb(void *vdata, ogg_int64_t offset, int whence)
+{
+ const OggCallbackData *data = (const OggCallbackData *) vdata;
+ if(decoder_get_command(data->decoder) == DECODE_COMMAND_STOP)
+ return -1;
+ return seekInputStream(data->inStream, offset, whence);
+}
+
+/* TODO: check Ogg libraries API and see if we can just not have this func */
+static int ogg_close_cb(mpd_unused void *vdata)
+{
+ return 0;
+}
+
+static long ogg_tell_cb(void *vdata)
+{
+ const OggCallbackData *data = (const OggCallbackData *) vdata;
+
+ return (long)(data->inStream->offset);
+}
+
+static const char *ogg_parseComment(const char *comment, const char *needle)
+{
+ int len = strlen(needle);
+
+ if (strncasecmp(comment, needle, len) == 0 && *(comment + len) == '=') {
+ return comment + len + 1;
+ }
+
+ return NULL;
+}
+
+static void ogg_getReplayGainInfo(char **comments, ReplayGainInfo ** infoPtr)
+{
+ const char *temp;
+ int found = 0;
+
+ if (*infoPtr)
+ freeReplayGainInfo(*infoPtr);
+ *infoPtr = newReplayGainInfo();
+
+ while (*comments) {
+ if ((temp =
+ ogg_parseComment(*comments, "replaygain_track_gain"))) {
+ (*infoPtr)->trackGain = atof(temp);
+ found = 1;
+ } else if ((temp = ogg_parseComment(*comments,
+ "replaygain_album_gain"))) {
+ (*infoPtr)->albumGain = atof(temp);
+ found = 1;
+ } else if ((temp = ogg_parseComment(*comments,
+ "replaygain_track_peak"))) {
+ (*infoPtr)->trackPeak = atof(temp);
+ found = 1;
+ } else if ((temp = ogg_parseComment(*comments,
+ "replaygain_album_peak"))) {
+ (*infoPtr)->albumPeak = atof(temp);
+ found = 1;
+ }
+
+ comments++;
+ }
+
+ if (!found) {
+ freeReplayGainInfo(*infoPtr);
+ *infoPtr = NULL;
+ }
+}
+
+static const char *VORBIS_COMMENT_TRACK_KEY = "tracknumber";
+static const char *VORBIS_COMMENT_DISC_KEY = "discnumber";
+
+static unsigned int ogg_parseCommentAddToTag(char *comment,
+ unsigned int itemType,
+ struct tag ** tag)
+{
+ const char *needle;
+ unsigned int len;
+ switch (itemType) {
+ case TAG_ITEM_TRACK:
+ needle = VORBIS_COMMENT_TRACK_KEY;
+ break;
+ case TAG_ITEM_DISC:
+ needle = VORBIS_COMMENT_DISC_KEY;
+ break;
+ default:
+ needle = mpdTagItemKeys[itemType];
+ }
+ len = strlen(needle);
+
+ if (strncasecmp(comment, needle, len) == 0 && *(comment + len) == '=') {
+ if (!*tag)
+ *tag = tag_new();
+
+ tag_add_item(*tag, itemType, comment + len + 1);
+
+ return 1;
+ }
+
+ return 0;
+}
+
+static struct tag *oggCommentsParse(char **comments)
+{
+ struct tag *tag = NULL;
+
+ while (*comments) {
+ int j;
+ for (j = TAG_NUM_OF_ITEM_TYPES; --j >= 0;) {
+ if (ogg_parseCommentAddToTag(*comments, j, &tag))
+ break;
+ }
+ comments++;
+ }
+
+ return tag;
+}
+
+static void putOggCommentsIntoOutputBuffer(char *streamName,
+ char **comments)
+{
+ struct tag *tag;
+
+ tag = oggCommentsParse(comments);
+ if (!tag && streamName) {
+ tag = tag_new();
+ }
+ if (!tag)
+ return;
+
+ if (streamName) {
+ tag_clear_items_by_type(tag, TAG_ITEM_NAME);
+ tag_add_item(tag, TAG_ITEM_NAME, streamName);
+ }
+
+ tag_free(tag);
+}
+
+/* public */
+static int oggvorbis_decode(struct decoder * decoder, InputStream * inStream)
+{
+ OggVorbis_File vf;
+ ov_callbacks callbacks;
+ OggCallbackData data;
+ struct audio_format audio_format;
+ int current_section;
+ int prev_section = -1;
+ long ret;
+#define OGG_CHUNK_SIZE 4096
+ char chunk[OGG_CHUNK_SIZE];
+ int chunkpos = 0;
+ long bitRate = 0;
+ long test;
+ ReplayGainInfo *replayGainInfo = NULL;
+ char **comments;
+ const char *errorStr;
+ int initialized = 0;
+
+ data.inStream = inStream;
+ data.decoder = decoder;
+
+ callbacks.read_func = ogg_read_cb;
+ callbacks.seek_func = ogg_seek_cb;
+ callbacks.close_func = ogg_close_cb;
+ callbacks.tell_func = ogg_tell_cb;
+ if ((ret = ov_open_callbacks(&data, &vf, NULL, 0, callbacks)) < 0) {
+ if (decoder_get_command(decoder) != DECODE_COMMAND_NONE)
+ return 0;
+
+ switch (ret) {
+ case OV_EREAD:
+ errorStr = "read error";
+ break;
+ case OV_ENOTVORBIS:
+ errorStr = "not vorbis stream";
+ break;
+ case OV_EVERSION:
+ errorStr = "vorbis version mismatch";
+ break;
+ case OV_EBADHEADER:
+ errorStr = "invalid vorbis header";
+ break;
+ case OV_EFAULT:
+ errorStr = "internal logic error";
+ break;
+ default:
+ errorStr = "unknown error";
+ break;
+ }
+ ERROR("Error decoding Ogg Vorbis stream: %s\n",
+ errorStr);
+ return -1;
+ }
+ audio_format.bits = 16;
+
+ while (1) {
+ if (decoder_get_command(decoder) == DECODE_COMMAND_SEEK) {
+ double seek_where = decoder_seek_where(decoder);
+ if (0 == ov_time_seek_page(&vf, seek_where)) {
+ decoder_clear(decoder);
+ chunkpos = 0;
+ decoder_command_finished(decoder);
+ } else
+ decoder_seek_error(decoder);
+ }
+ ret = ov_read(&vf, chunk + chunkpos,
+ OGG_CHUNK_SIZE - chunkpos,
+ OGG_DECODE_USE_BIGENDIAN, 2, 1, &current_section);
+ if (current_section != prev_section) {
+ /*printf("new song!\n"); */
+ vorbis_info *vi = ov_info(&vf, -1);
+ audio_format.channels = vi->channels;
+ audio_format.sample_rate = vi->rate;
+ if (!initialized) {
+ float total_time = ov_time_total(&vf, -1);
+ if (total_time < 0)
+ total_time = 0;
+ decoder_initialized(decoder, &audio_format,
+ total_time);
+ initialized = 1;
+ }
+ comments = ov_comment(&vf, -1)->user_comments;
+ putOggCommentsIntoOutputBuffer(inStream->metaName,
+ comments);
+ ogg_getReplayGainInfo(comments, &replayGainInfo);
+ }
+
+ prev_section = current_section;
+
+ if (ret <= 0) {
+ if (ret == OV_HOLE) /* bad packet */
+ ret = 0;
+ else /* break on EOF or other error */
+ break;
+ }
+
+ chunkpos += ret;
+
+ if (chunkpos >= OGG_CHUNK_SIZE) {
+ if ((test = ov_bitrate_instant(&vf)) > 0) {
+ bitRate = test / 1000;
+ }
+ decoder_data(decoder, inStream,
+ inStream->seekable,
+ chunk, chunkpos,
+ ov_pcm_tell(&vf) / audio_format.sample_rate,
+ bitRate, replayGainInfo);
+ chunkpos = 0;
+ if (decoder_get_command(decoder) == DECODE_COMMAND_STOP)
+ break;
+ }
+ }
+
+ if (decoder_get_command(decoder) == DECODE_COMMAND_NONE &&
+ chunkpos > 0) {
+ decoder_data(decoder, NULL, inStream->seekable,
+ chunk, chunkpos,
+ ov_time_tell(&vf), bitRate,
+ replayGainInfo);
+ }
+
+ if (replayGainInfo)
+ freeReplayGainInfo(replayGainInfo);
+
+ ov_clear(&vf);
+
+ decoder_flush(decoder);
+
+ return 0;
+}
+
+static struct tag *oggvorbis_TagDup(char *file)
+{
+ struct tag *ret;
+ FILE *fp;
+ OggVorbis_File vf;
+
+ fp = fopen(file, "r");
+ if (!fp) {
+ DEBUG("oggvorbis_TagDup: Failed to open file: '%s', %s\n",
+ file, strerror(errno));
+ return NULL;
+ }
+ if (ov_open(fp, &vf, NULL, 0) < 0) {
+ fclose(fp);
+ return NULL;
+ }
+
+ ret = oggCommentsParse(ov_comment(&vf, -1)->user_comments);
+
+ if (!ret)
+ ret = tag_new();
+ ret->time = (int)(ov_time_total(&vf, -1) + 0.5);
+
+ ov_clear(&vf);
+
+ return ret;
+}
+
+static bool oggvorbis_try_decode(InputStream * inStream)
+{
+ if (!inStream->seekable)
+ /* we cannot seek after the detection, so don't bother
+ checking */
+ return true;
+
+ return ogg_stream_type_detect(inStream) == VORBIS;
+}
+
+static const char *oggvorbis_Suffixes[] = { "ogg","oga", NULL };
+static const char *oggvorbis_MimeTypes[] = { "application/ogg",
+ "audio/x-vorbis+ogg",
+ "application/x-ogg",
+ NULL };
+
+struct decoder_plugin oggvorbisPlugin = {
+ .name = "oggvorbis",
+ .try_decode = oggvorbis_try_decode,
+ .stream_decode = oggvorbis_decode,
+ .tag_dup = oggvorbis_TagDup,
+ .stream_types = INPUT_PLUGIN_STREAM_URL | INPUT_PLUGIN_STREAM_FILE,
+ .suffixes = oggvorbis_Suffixes,
+ .mime_types = oggvorbis_MimeTypes
+};
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