From 9c218e487d449927022c845767491a277c61fecc Mon Sep 17 00:00:00 2001 From: Warren Dukes Date: Tue, 1 Feb 2005 02:00:25 +0000 Subject: beginnings of a mpc plugin, work in progress git-svn-id: https://svn.musicpd.org/mpd/trunk@2918 09075e82-0dd4-0310-85a5-a0d7c8717e4f --- src/inputPlugins/mpc_plugin.c | 280 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 280 insertions(+) create mode 100644 src/inputPlugins/mpc_plugin.c (limited to 'src') diff --git a/src/inputPlugins/mpc_plugin.c b/src/inputPlugins/mpc_plugin.c new file mode 100644 index 000000000..f2c84b22c --- /dev/null +++ b/src/inputPlugins/mpc_plugin.c @@ -0,0 +1,280 @@ +/* the Music Player Daemon (MPD) + * (c)2003-2005 by Warren Dukes (shank@mercury.chem.pitt.edu) + * 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 + */ + +#include "../inputPlugin.h" + +#ifdef HAVE_MPC + +#include "../utils.h" +#include "../audio.h" +#include "../log.h" +#include "../pcm_utils.h" +#include "../inputStream.h" +#include "../outputBuffer.h" + +#include +#include +#include +#include +#include +#include + +typedef struct _MpcCallbackData { + InputStream * inStream; + DecoderControl * dc; +} MpcCallbackData; + +/* this is just for tag parsing for db import! */ +int getMpcTotalTime(char * file) { + int totalTime = 0 + + return totalTime; +} + +mpc_int32_t mpc_read_cb(void * vdata, void * ptr, size_t size) { + mpc_int32_t ret = 0; + OggCallbackData * data = (OggCallbackData *)vdata; + + while(1) { + ret = readFromInputStream(data->inStream, ptr, size, 1); + if(ret == 0 && !inputStreamAtEOF(data->inStream) && + !data->dc->stop) + { + my_usleep(10000); + } + else break; + } + + return ret; +} + +static mpc_bool_t ogg_seek_cb(void * vdata, ogg_int64_t offset) { + OggCallbackData * data = (OggCallbackData *)vdata; + + return data->inStream->seekable ? + !seekInputStream(data->inStream , offset, SEEK_SET) : + false; +} + +mpd_int32_t mpc_tell_cb(void * vdata) { + OggCallbackData * data = (OggCallbackData *)vdata; + + return (long)(data->inStream->offset); +} + +mpc_bool_t mpc_canseek_cb(void * vdata) { + OggCallbackData * data = (OggCallbackData *)vdata; + + return data->inStream->seekable; +} + +mpc_int32_t mpc_getsize_cb(void * vdata) { + OggCallbackData * data = (OggCallbackData *)vdata; + + return data->inStream->size; +} + +int mpc_decode(OutputBuffer * cb, DecoderControl * dc, InputStream * inStream) +{ + mpc_decoder decoder; + mpc_reader reader; + mpc_streaminfo info; + + MpcCallbackData data; + data.inStream = inStream; + data.dc = dc; + + int eof = 0; + long ret; +#define MPC_CHUNK_SIZE 4096 + char chunk[MPC_CHUNK_SIZE]; + int chunkpos = 0; + long bitRate = 0; + char ** comments; + + data.inStream = inStream; + data.dc = dc; + + reader.read = mpc_read_cb; + reader.seek = mpc_seek_cb; + reader.tell = mpc_tell_cb; + reader.get_size = mpc_getsize_cb; + reader.canseek = mpc_canseek_cb; + reader.data = &data; + + mpc_streaminfo_init(&info); + + if(mpc_streaminfo_read(&info, &reader) != ERROR_CODE_OK) { + closeInputStream(inStream); + if(!dc->stop) { + ERROR("Not a valid musepack stream"); + } + else { + dc->state = DECODE_STATE_STOP; + dc->stop = 0; + } + return 0; + } + + mpc_decoder_setup(&decoder, &reader); + if(!mpc_decoder_initialize(&decoder, &info)) { + closeInputStream(inStream); + if(!dc->stop) { + ERROR("Not a valid musepack stream"); + } + else { + dc->state = DECODE_STATE_STOP; + dc->stop = 0; + } + } + + dc->totalTime = 0; + + dc->audioFormat.bits = 16; + + while(!eof) { + if(dc->seek) { + if(0 == ov_time_seek_page(&vf,dc->seekWhere)) { + clearOutputBuffer(cb); + chunkpos = 0; + } + else dc->seekError = 1; + dc->seek = 0; + } + ret = ov_read(&vf, chunk+chunkpos, + OGG_CHUNK_SIZE-chunkpos, + OGG_DECODE_USE_BIGENDIAN, + 2, 1, ¤t_section); + + if(current_section!=prev_section) { + /*printf("new song!\n");*/ + vorbis_info *vi=ov_info(&vf,-1); + dc->audioFormat.channels = vi->channels; + dc->audioFormat.sampleRate = vi->rate; + if(dc->state == DECODE_STATE_START) { + getOutputAudioFormat(&(dc->audioFormat), + &(cb->audioFormat)); + dc->state = DECODE_STATE_DECODE; + } + comments = ov_comment(&vf, -1)->user_comments; + putOggCommentsIntoOutputBuffer(cb, inStream->metaName, + comments); + ogg_getReplayGainInfo(comments, &replayGainInfo); + } + + prev_section = current_section; + + if(ret <= 0 && ret != OV_HOLE) { + eof = 1; + break; + } + if(ret == OV_HOLE) ret = 0; + + chunkpos+=ret; + + if(chunkpos >= OGG_CHUNK_SIZE) { + if((test = ov_bitrate_instant(&vf))>0) { + bitRate = test/1000; + } + sendDataToOutputBuffer(cb, inStream, dc, + inStream->seekable, + chunk, chunkpos, + ov_pcm_tell(&vf)/ + dc->audioFormat.sampleRate, + bitRate, + replayGainInfo); + chunkpos = 0; + if(dc->stop) break; + } + } + + if(!dc->stop && chunkpos > 0) { + sendDataToOutputBuffer(cb, NULL, dc, inStream->seekable, + chunk, chunkpos, + ov_time_tell(&vf), bitRate, replayGainInfo); + } + + if(replayGainInfo) freeReplayGainInfo(replayGainInfo); + + ov_clear(&vf); + + flushOutputBuffer(cb); + + if(dc->stop) { + dc->state = DECODE_STATE_STOP; + dc->stop = 0; + } + else dc->state = DECODE_STATE_STOP; + + return 0; +} + +MpdTag * oggTagDup(char * file) { + MpdTag * ret = NULL; + FILE * fp; + OggVorbis_File vf; + + fp = fopen(file,"r"); + if(!fp) 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 = newMpdTag(); + ret->time = (int)(ov_time_total(&vf,-1)+0.5); + + ov_clear(&vf); + + return ret; +} + +char * oggSuffixes[] = {"ogg", NULL}; +char * oggMimeTypes[] = {"application/ogg", NULL}; + +InputPlugin oggPlugin = +{ + "ogg", + NULL, + NULL, + ogg_decode, + NULL, + oggTagDup, + INPUT_PLUGIN_STREAM_URL | INPUT_PLUGIN_STREAM_FILE, + oggSuffixes, + oggMimeTypes +}; + +#else + +InputPlugin oggPlugin = +{ + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + 0, + NULL, + NULL +}; + +#endif -- cgit v1.2.3