From e11355f47d545fe523b019481415b1347aecd4bd Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Sun, 26 Oct 2008 11:29:25 +0100 Subject: renamed src/inputPlugins/ to src/decoder/ These plugins are not input plugins, they are decoder plugins. No CamelCase in the directory name. --- src/inputPlugins/_flac_common.c | 323 ---------------------------------------- 1 file changed, 323 deletions(-) delete mode 100644 src/inputPlugins/_flac_common.c (limited to 'src/inputPlugins/_flac_common.c') diff --git a/src/inputPlugins/_flac_common.c b/src/inputPlugins/_flac_common.c deleted file mode 100644 index db43e0003..000000000 --- a/src/inputPlugins/_flac_common.c +++ /dev/null @@ -1,323 +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 - * - * Common data structures and functions used by FLAC and OggFLAC - * (c) 2005 by Eric Wong - * - * 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 "_flac_common.h" -#include "../log.h" - -#include -#include - -void init_FlacData(FlacData * data, struct decoder * decoder, - InputStream * inStream) -{ - data->time = 0; - data->position = 0; - data->bitRate = 0; - data->decoder = decoder; - data->inStream = inStream; - data->replayGainInfo = NULL; - data->tag = NULL; -} - -static int flacFindVorbisCommentFloat(const FLAC__StreamMetadata * block, - const char *cmnt, float *fl) -{ - int offset = - FLAC__metadata_object_vorbiscomment_find_entry_from(block, 0, cmnt); - - if (offset >= 0) { - size_t pos = strlen(cmnt) + 1; /* 1 is for '=' */ - int len = block->data.vorbis_comment.comments[offset].length - - pos; - if (len > 0) { - unsigned char tmp; - unsigned char *p = &(block->data.vorbis_comment. - comments[offset].entry[pos]); - tmp = p[len]; - p[len] = '\0'; - *fl = (float)atof((char *)p); - p[len] = tmp; - - return 1; - } - } - - return 0; -} - -/* replaygain stuff by AliasMrJones */ -static void flacParseReplayGain(const FLAC__StreamMetadata * block, - FlacData * data) -{ - int found = 0; - - if (data->replayGainInfo) - freeReplayGainInfo(data->replayGainInfo); - - data->replayGainInfo = newReplayGainInfo(); - - found |= flacFindVorbisCommentFloat(block, "replaygain_album_gain", - &data->replayGainInfo->albumGain); - found |= flacFindVorbisCommentFloat(block, "replaygain_album_peak", - &data->replayGainInfo->albumPeak); - found |= flacFindVorbisCommentFloat(block, "replaygain_track_gain", - &data->replayGainInfo->trackGain); - found |= flacFindVorbisCommentFloat(block, "replaygain_track_peak", - &data->replayGainInfo->trackPeak); - - if (!found) { - freeReplayGainInfo(data->replayGainInfo); - data->replayGainInfo = NULL; - } -} - -/* tracknumber is used in VCs, MPD uses "track" ..., all the other - * tag names match */ -static const char *VORBIS_COMMENT_TRACK_KEY = "tracknumber"; -static const char *VORBIS_COMMENT_DISC_KEY = "discnumber"; - -static unsigned int commentMatchesAddToTag(const - FLAC__StreamMetadata_VorbisComment_Entry - * entry, unsigned int itemType, - struct tag ** tag) -{ - const char *str; - size_t slen; - int vlen; - - switch (itemType) { - case TAG_ITEM_TRACK: - str = VORBIS_COMMENT_TRACK_KEY; - break; - case TAG_ITEM_DISC: - str = VORBIS_COMMENT_DISC_KEY; - break; - default: - str = mpdTagItemKeys[itemType]; - } - slen = strlen(str); - vlen = entry->length - slen - 1; - - if ((vlen > 0) && (0 == strncasecmp(str, (char *)entry->entry, slen)) - && (*(entry->entry + slen) == '=')) { - if (!*tag) - *tag = tag_new(); - - tag_add_item_n(*tag, itemType, - (char *)(entry->entry + slen + 1), vlen); - - return 1; - } - - return 0; -} - -struct tag *copyVorbisCommentBlockToMpdTag(const FLAC__StreamMetadata * block, - struct tag * tag) -{ - unsigned int i, j; - FLAC__StreamMetadata_VorbisComment_Entry *comments; - - comments = block->data.vorbis_comment.comments; - - for (i = block->data.vorbis_comment.num_comments; i != 0; --i) { - for (j = TAG_NUM_OF_ITEM_TYPES; j--;) { - if (commentMatchesAddToTag(comments, j, &tag)) - break; - } - comments++; - } - - return tag; -} - -void flac_metadata_common_cb(const FLAC__StreamMetadata * block, - FlacData * data) -{ - const FLAC__StreamMetadata_StreamInfo *si = &(block->data.stream_info); - - switch (block->type) { - case FLAC__METADATA_TYPE_STREAMINFO: - data->audio_format.bits = (int8_t)si->bits_per_sample; - data->audio_format.sample_rate = si->sample_rate; - data->audio_format.channels = (int8_t)si->channels; - data->total_time = ((float)si->total_samples) / (si->sample_rate); - break; - case FLAC__METADATA_TYPE_VORBIS_COMMENT: - flacParseReplayGain(block, data); - default: - break; - } -} - -void flac_error_common_cb(const char *plugin, - const FLAC__StreamDecoderErrorStatus status, - mpd_unused FlacData * data) -{ - if (decoder_get_command(data->decoder) == DECODE_COMMAND_STOP) - return; - - switch (status) { - case FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC: - ERROR("%s lost sync\n", plugin); - break; - case FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER: - ERROR("bad %s header\n", plugin); - break; - case FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH: - ERROR("%s crc mismatch\n", plugin); - break; - default: - ERROR("unknown %s error\n", plugin); - } -} - -static void flac_convert_stereo16(int16_t *dest, - const FLAC__int32 * const buf[], - unsigned int position, unsigned int end) -{ - for (; position < end; ++position) { - *dest++ = buf[0][position]; - *dest++ = buf[1][position]; - } -} - -static void -flac_convert_16(int16_t *dest, - unsigned int num_channels, - const FLAC__int32 * const buf[], - unsigned int position, unsigned int end) -{ - unsigned int c_chan; - - for (; position < end; ++position) - for (c_chan = 0; c_chan < num_channels; c_chan++) - *dest++ = buf[c_chan][position]; -} - -/** - * Note: this function also handles 24 bit files! - */ -static void -flac_convert_32(int32_t *dest, - unsigned int num_channels, - const FLAC__int32 * const buf[], - unsigned int position, unsigned int end) -{ - unsigned int c_chan; - - for (; position < end; ++position) - for (c_chan = 0; c_chan < num_channels; c_chan++) - *dest++ = buf[c_chan][position]; -} - -static void -flac_convert_8(int8_t *dest, - unsigned int num_channels, - const FLAC__int32 * const buf[], - unsigned int position, unsigned int end) -{ - unsigned int c_chan; - - for (; position < end; ++position) - for (c_chan = 0; c_chan < num_channels; c_chan++) - *dest++ = buf[c_chan][position]; -} - -static void flac_convert(unsigned char *dest, - unsigned int num_channels, - unsigned int bytes_per_sample, - const FLAC__int32 * const buf[], - unsigned int position, unsigned int end) -{ - switch (bytes_per_sample) { - case 2: - if (num_channels == 2) - flac_convert_stereo16((int16_t*)dest, buf, - position, end); - else - flac_convert_16((int16_t*)dest, num_channels, buf, - position, end); - break; - - case 4: - flac_convert_32((int32_t*)dest, num_channels, buf, - position, end); - break; - - case 1: - flac_convert_8((int8_t*)dest, num_channels, buf, - position, end); - break; - } -} - -FLAC__StreamDecoderWriteStatus -flac_common_write(FlacData *data, const FLAC__Frame * frame, - const FLAC__int32 *const buf[]) -{ - unsigned int c_samp; - const unsigned int num_channels = frame->header.channels; - const unsigned int bytes_per_sample = - audio_format_sample_size(&data->audio_format); - const unsigned int bytes_per_channel = - bytes_per_sample * frame->header.channels; - const unsigned int max_samples = FLAC_CHUNK_SIZE / bytes_per_channel; - unsigned int num_samples; - enum decoder_command cmd; - - if (bytes_per_sample != 1 && bytes_per_sample != 2 && - bytes_per_sample != 4) - /* exotic unsupported bit rate */ - return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; - - for (c_samp = 0; c_samp < frame->header.blocksize; - c_samp += num_samples) { - num_samples = frame->header.blocksize - c_samp; - if (num_samples > max_samples) - num_samples = max_samples; - - flac_convert(data->chunk, - num_channels, bytes_per_sample, buf, - c_samp, c_samp + num_samples); - - cmd = decoder_data(data->decoder, data->inStream, - 1, data->chunk, - num_samples * bytes_per_channel, - data->time, data->bitRate, - data->replayGainInfo); - switch (cmd) { - case DECODE_COMMAND_NONE: - case DECODE_COMMAND_START: - break; - - case DECODE_COMMAND_STOP: - return - FLAC__STREAM_DECODER_WRITE_STATUS_ABORT; - - case DECODE_COMMAND_SEEK: - return - FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; - } - } - - return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE; -} -- cgit v1.2.3