From c4d69f0ae1e0df6bac03fe131b4e8a40f75b5c4b Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Tue, 17 Feb 2009 08:48:20 +0100 Subject: renamed decoder plugin "mpc" to "mpcdec" This plugin is based on "libmpcdec". --- src/decoder/mpc_plugin.c | 273 ----------------------------------------------- 1 file changed, 273 deletions(-) delete mode 100644 src/decoder/mpc_plugin.c (limited to 'src/decoder/mpc_plugin.c') diff --git a/src/decoder/mpc_plugin.c b/src/decoder/mpc_plugin.c deleted file mode 100644 index 23fa5787b..000000000 --- a/src/decoder/mpc_plugin.c +++ /dev/null @@ -1,273 +0,0 @@ -/* 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 - */ - -#include "../decoder_api.h" -#include "config.h" - -#include -#include -#include - -typedef struct _MpcCallbackData { - struct input_stream *inStream; - struct decoder *decoder; -} MpcCallbackData; - -static mpc_int32_t mpc_read_cb(void *vdata, void *ptr, mpc_int32_t size) -{ - MpcCallbackData *data = (MpcCallbackData *) vdata; - - return decoder_read(data->decoder, data->inStream, ptr, size); -} - -static mpc_bool_t mpc_seek_cb(void *vdata, mpc_int32_t offset) -{ - MpcCallbackData *data = (MpcCallbackData *) vdata; - - return input_stream_seek(data->inStream, offset, SEEK_SET); -} - -static mpc_int32_t mpc_tell_cb(void *vdata) -{ - MpcCallbackData *data = (MpcCallbackData *) vdata; - - return (long)(data->inStream->offset); -} - -static mpc_bool_t mpc_canseek_cb(void *vdata) -{ - MpcCallbackData *data = (MpcCallbackData *) vdata; - - return data->inStream->seekable; -} - -static mpc_int32_t mpc_getsize_cb(void *vdata) -{ - MpcCallbackData *data = (MpcCallbackData *) vdata; - - return data->inStream->size; -} - -/* this _looks_ performance-critical, don't de-inline -- eric */ -static inline int32_t convertSample(MPC_SAMPLE_FORMAT sample) -{ - /* only doing 16-bit audio for now */ - int32_t val; - - enum { - bits = 24, - }; - - const int clip_min = -1 << (bits - 1); - const int clip_max = (1 << (bits - 1)) - 1; - -#ifdef MPC_FIXED_POINT - const int shift = bits - MPC_FIXED_POINT_SCALE_SHIFT; - - if (shift < 0) - val = sample << -shift; - else - val = sample << shift; -#else - const int float_scale = 1 << (bits - 1); - - val = sample * float_scale; -#endif - - if (val < clip_min) - val = clip_min; - else if (val > clip_max) - val = clip_max; - - return val; -} - -static void -mpc_to_mpd_buffer(int32_t *dest, const MPC_SAMPLE_FORMAT *src, - unsigned num_samples) -{ - while (num_samples-- > 0) - *dest++ = convertSample(*src++); -} - -static void -mpc_decode(struct decoder *mpd_decoder, struct input_stream *inStream) -{ - mpc_decoder decoder; - mpc_reader reader; - mpc_streaminfo info; - struct audio_format audio_format; - - MpcCallbackData data; - - MPC_SAMPLE_FORMAT sample_buffer[MPC_DECODER_BUFFER_LENGTH]; - - mpc_uint32_t ret; - int32_t chunk[G_N_ELEMENTS(sample_buffer)]; - long bitRate = 0; - unsigned long samplePos = 0; - mpc_uint32_t vbrUpdateAcc; - mpc_uint32_t vbrUpdateBits; - float total_time; - struct replay_gain_info *replayGainInfo = NULL; - enum decoder_command cmd = DECODE_COMMAND_NONE; - - data.inStream = inStream; - data.decoder = mpd_decoder; - - 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 ((ret = mpc_streaminfo_read(&info, &reader)) != ERROR_CODE_OK) { - if (decoder_get_command(mpd_decoder) != DECODE_COMMAND_STOP) - g_warning("Not a valid musepack stream\n"); - return; - } - - mpc_decoder_setup(&decoder, &reader); - - if (!mpc_decoder_initialize(&decoder, &info)) { - if (decoder_get_command(mpd_decoder) != DECODE_COMMAND_STOP) - g_warning("Not a valid musepack stream\n"); - return; - } - - audio_format.bits = 24; - audio_format.channels = info.channels; - audio_format.sample_rate = info.sample_freq; - - if (!audio_format_valid(&audio_format)) { - g_warning("Invalid audio format: %u:%u:%u\n", - audio_format.sample_rate, - audio_format.bits, - audio_format.channels); - return; - } - - replayGainInfo = replay_gain_info_new(); - replayGainInfo->tuples[REPLAY_GAIN_ALBUM].gain = info.gain_album * 0.01; - replayGainInfo->tuples[REPLAY_GAIN_ALBUM].peak = info.peak_album / 32767.0; - replayGainInfo->tuples[REPLAY_GAIN_TRACK].gain = info.gain_title * 0.01; - replayGainInfo->tuples[REPLAY_GAIN_TRACK].peak = info.peak_title / 32767.0; - - decoder_initialized(mpd_decoder, &audio_format, - inStream->seekable, - mpc_streaminfo_get_length(&info)); - - do { - if (cmd == DECODE_COMMAND_SEEK) { - samplePos = decoder_seek_where(mpd_decoder) * - audio_format.sample_rate; - if (mpc_decoder_seek_sample(&decoder, samplePos)) - decoder_command_finished(mpd_decoder); - else - decoder_seek_error(mpd_decoder); - } - - vbrUpdateAcc = 0; - vbrUpdateBits = 0; - ret = mpc_decoder_decode(&decoder, sample_buffer, - &vbrUpdateAcc, &vbrUpdateBits); - if (ret == 0 || ret == (mpc_uint32_t)-1) - break; - - samplePos += ret; - - ret *= info.channels; - - mpc_to_mpd_buffer(chunk, sample_buffer, ret); - - total_time = ((float)samplePos) / audio_format.sample_rate; - bitRate = vbrUpdateBits * audio_format.sample_rate - / 1152 / 1000; - - cmd = decoder_data(mpd_decoder, inStream, - chunk, ret * sizeof(chunk[0]), - total_time, - bitRate, replayGainInfo); - } while (cmd != DECODE_COMMAND_STOP); - - replay_gain_info_free(replayGainInfo); -} - -static float mpcGetTime(const char *file) -{ - struct input_stream inStream; - float total_time = -1; - - mpc_reader reader; - mpc_streaminfo info; - MpcCallbackData data; - - data.inStream = &inStream; - data.decoder = NULL; - - 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 (!input_stream_open(&inStream, file)) - return -1; - - if (mpc_streaminfo_read(&info, &reader) != ERROR_CODE_OK) { - input_stream_close(&inStream); - return -1; - } - - total_time = mpc_streaminfo_get_length(&info); - - input_stream_close(&inStream); - - return total_time; -} - -static struct tag *mpcTagDup(const char *file) -{ - float total_time = mpcGetTime(file); - struct tag *tag; - - if (total_time < 0) { - g_debug("mpcTagDup: Failed to get Songlength of file: %s\n", - file); - return NULL; - } - - tag = tag_new(); - tag->time = total_time; - return tag; -} - -static const char *const mpcSuffixes[] = { "mpc", NULL }; - -const struct decoder_plugin mpcPlugin = { - .name = "mpc", - .stream_decode = mpc_decode, - .tag_dup = mpcTagDup, - .suffixes = mpcSuffixes, -}; -- cgit v1.2.3