renamed src/inputPlugins/ to src/decoder/
These plugins are not input plugins, they are decoder plugins. No CamelCase in the directory name.
This commit is contained in:
Max Kellermann
574
src/decoder/wavpack_plugin.c
Normal file
574
src/decoder/wavpack_plugin.c
Normal file
@@ -0,0 +1,574 @@
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/* the Music Player Daemon (MPD)
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* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
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* This project's homepage is: http://www.musicpd.org
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*
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* WavPack support added by Laszlo Ashin <kodest@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "../decoder_api.h"
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#include "../utils.h"
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#include "../log.h"
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#include "../path.h"
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#include <wavpack/wavpack.h>
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/* pick 1020 since its devisible for 8,16,24, and 32-bit audio */
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#define CHUNK_SIZE 1020
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#define ERRORLEN 80
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static struct {
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const char *name;
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int type;
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} tagtypes[] = {
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{ "artist", TAG_ITEM_ARTIST },
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{ "album", TAG_ITEM_ALBUM },
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{ "title", TAG_ITEM_TITLE },
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{ "track", TAG_ITEM_TRACK },
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{ "name", TAG_ITEM_NAME },
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{ "genre", TAG_ITEM_GENRE },
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{ "date", TAG_ITEM_DATE },
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{ "composer", TAG_ITEM_COMPOSER },
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{ "performer", TAG_ITEM_PERFORMER },
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{ "comment", TAG_ITEM_COMMENT },
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{ "disc", TAG_ITEM_DISC },
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{ NULL, 0 }
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};
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/*
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* This function has been borrowed from the tiny player found on
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* wavpack.com. Modifications were required because mpd only handles
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* max 16 bit samples.
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*/
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static void format_samples_int(int Bps, void *buffer, uint32_t samcnt)
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{
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int32_t temp;
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uchar *dst = (uchar *)buffer;
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int32_t *src = (int32_t *)buffer;
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switch (Bps) {
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case 1:
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while (samcnt--)
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*dst++ = *src++;
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break;
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case 2:
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while (samcnt--) {
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temp = *src++;
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#ifdef WORDS_BIGENDIAN
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*dst++ = (uchar)(temp >> 8);
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*dst++ = (uchar)(temp);
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#else
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*dst++ = (uchar)(temp);
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*dst++ = (uchar)(temp >> 8);
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#endif
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}
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break;
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case 3:
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/* downscale to 16 bits */
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while (samcnt--) {
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temp = *src++;
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#ifdef WORDS_BIGENDIAN
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*dst++ = (uchar)(temp >> 16);
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*dst++ = (uchar)(temp >> 8);
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#else
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*dst++ = (uchar)(temp >> 8);
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*dst++ = (uchar)(temp >> 16);
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#endif
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}
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break;
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case 4:
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/* downscale to 16 bits */
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while (samcnt--) {
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temp = *src++;
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#ifdef WORDS_BIGENDIAN
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*dst++ = (uchar)(temp >> 24);
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*dst++ = (uchar)(temp >> 16);
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#else
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*dst++ = (uchar)(temp >> 16);
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*dst++ = (uchar)(temp >> 24);
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#endif
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}
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break;
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}
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}
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/*
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* This function converts floating point sample data to 16 bit integer.
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*/
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static void format_samples_float(mpd_unused int Bps, void *buffer,
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uint32_t samcnt)
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{
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int16_t *dst = (int16_t *)buffer;
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float *src = (float *)buffer;
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while (samcnt--) {
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*dst++ = (int16_t)(*src++);
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}
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}
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/*
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* This does the main decoding thing.
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* Requires an already opened WavpackContext.
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*/
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static void wavpack_decode(struct decoder * decoder,
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WavpackContext *wpc, int canseek,
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ReplayGainInfo *replayGainInfo)
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{
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struct audio_format audio_format;
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void (*format_samples)(int Bps, void *buffer, uint32_t samcnt);
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char chunk[CHUNK_SIZE];
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float file_time;
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int samplesreq, samplesgot;
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int allsamples;
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int position, outsamplesize;
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int Bps;
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audio_format.sample_rate = WavpackGetSampleRate(wpc);
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audio_format.channels = WavpackGetReducedChannels(wpc);
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audio_format.bits = WavpackGetBitsPerSample(wpc);
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if (audio_format.bits > 16)
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audio_format.bits = 16;
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if ((WavpackGetMode(wpc) & MODE_FLOAT) == MODE_FLOAT)
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format_samples = format_samples_float;
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else
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format_samples = format_samples_int;
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/*
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if ((WavpackGetMode(wpc) & MODE_WVC) == MODE_WVC)
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ERROR("decoding WITH wvc!!!\n");
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else
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ERROR("decoding without wvc\n");
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*/
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allsamples = WavpackGetNumSamples(wpc);
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Bps = WavpackGetBytesPerSample(wpc);
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outsamplesize = Bps;
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if (outsamplesize > 2)
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outsamplesize = 2;
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outsamplesize *= audio_format.channels;
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samplesreq = sizeof(chunk) / (4 * audio_format.channels);
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decoder_initialized(decoder, &audio_format,
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(float)allsamples / audio_format.sample_rate);
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position = 0;
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do {
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if (decoder_get_command(decoder) == DECODE_COMMAND_SEEK) {
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if (canseek) {
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int where;
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decoder_clear(decoder);
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where = decoder_seek_where(decoder) *
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audio_format.sample_rate;
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if (WavpackSeekSample(wpc, where)) {
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position = where;
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decoder_command_finished(decoder);
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} else
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decoder_seek_error(decoder);
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} else {
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decoder_seek_error(decoder);
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}
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}
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if (decoder_get_command(decoder) == DECODE_COMMAND_STOP)
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break;
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samplesgot = WavpackUnpackSamples(wpc,
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(int32_t *)chunk, samplesreq);
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if (samplesgot > 0) {
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int bitrate = (int)(WavpackGetInstantBitrate(wpc) /
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1000 + 0.5);
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position += samplesgot;
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file_time = (float)position / audio_format.sample_rate;
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format_samples(Bps, chunk,
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samplesgot * audio_format.channels);
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decoder_data(decoder, NULL, 0, chunk,
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samplesgot * outsamplesize,
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file_time, bitrate,
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replayGainInfo);
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}
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} while (samplesgot == samplesreq);
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decoder_flush(decoder);
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}
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static char *wavpack_tag(WavpackContext *wpc, char *key)
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{
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char *value = NULL;
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int size;
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size = WavpackGetTagItem(wpc, key, NULL, 0);
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if (size > 0) {
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size++;
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value = xmalloc(size);
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if (!value)
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return NULL;
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WavpackGetTagItem(wpc, key, value, size);
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}
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return value;
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}
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static ReplayGainInfo *wavpack_replaygain(WavpackContext *wpc)
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{
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static char replaygain_track_gain[] = "replaygain_track_gain";
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static char replaygain_album_gain[] = "replaygain_album_gain";
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static char replaygain_track_peak[] = "replaygain_track_peak";
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static char replaygain_album_peak[] = "replaygain_album_peak";
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ReplayGainInfo *replayGainInfo;
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int found = 0;
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char *value;
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replayGainInfo = newReplayGainInfo();
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value = wavpack_tag(wpc, replaygain_track_gain);
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if (value) {
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replayGainInfo->trackGain = atof(value);
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free(value);
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found = 1;
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}
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value = wavpack_tag(wpc, replaygain_album_gain);
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if (value) {
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replayGainInfo->albumGain = atof(value);
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free(value);
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found = 1;
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}
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value = wavpack_tag(wpc, replaygain_track_peak);
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if (value) {
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replayGainInfo->trackPeak = atof(value);
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free(value);
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found = 1;
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}
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value = wavpack_tag(wpc, replaygain_album_peak);
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if (value) {
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replayGainInfo->albumPeak = atof(value);
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free(value);
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found = 1;
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}
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if (found)
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return replayGainInfo;
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freeReplayGainInfo(replayGainInfo);
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return NULL;
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}
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/*
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* Reads metainfo from the specified file.
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*/
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static struct tag *wavpack_tagdup(char *fname)
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{
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WavpackContext *wpc;
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struct tag *tag;
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char error[ERRORLEN];
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char *s;
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int ssize;
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int i, j;
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wpc = WavpackOpenFileInput(fname, error, OPEN_TAGS, 0);
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if (wpc == NULL) {
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ERROR("failed to open WavPack file \"%s\": %s\n", fname, error);
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return NULL;
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}
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tag = tag_new();
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tag->time =
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(float)WavpackGetNumSamples(wpc) / WavpackGetSampleRate(wpc);
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ssize = 0;
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s = NULL;
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for (i = 0; tagtypes[i].name != NULL; ++i) {
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j = WavpackGetTagItem(wpc, tagtypes[i].name, NULL, 0);
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if (j > 0) {
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++j;
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if (s == NULL) {
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s = xmalloc(j);
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if (s == NULL) break;
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ssize = j;
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} else if (j > ssize) {
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char *t = (char *)xrealloc(s, j);
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if (t == NULL) break;
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ssize = j;
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s = t;
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}
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WavpackGetTagItem(wpc, tagtypes[i].name, s, j);
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tag_add_item(tag, tagtypes[i].type, s);
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}
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}
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if (s != NULL)
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free(s);
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WavpackCloseFile(wpc);
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||||
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return tag;
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}
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/*
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* mpd InputStream <=> WavpackStreamReader wrapper callbacks
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*/
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/* This struct is needed for per-stream last_byte storage. */
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typedef struct {
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struct decoder *decoder;
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InputStream *is;
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/* Needed for push_back_byte() */
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||||
int last_byte;
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||||
} InputStreamPlus;
|
||||
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static int32_t read_bytes(void *id, void *data, int32_t bcount)
|
||||
{
|
||||
InputStreamPlus *isp = (InputStreamPlus *)id;
|
||||
uint8_t *buf = (uint8_t *)data;
|
||||
int32_t i = 0;
|
||||
|
||||
if (isp->last_byte != EOF) {
|
||||
*buf++ = isp->last_byte;
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||||
isp->last_byte = EOF;
|
||||
--bcount;
|
||||
++i;
|
||||
}
|
||||
return i + decoder_read(isp->decoder, isp->is, buf, bcount);
|
||||
}
|
||||
|
||||
static uint32_t get_pos(void *id)
|
||||
{
|
||||
return ((InputStreamPlus *)id)->is->offset;
|
||||
}
|
||||
|
||||
static int set_pos_abs(void *id, uint32_t pos)
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||||
{
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||||
return seekInputStream(((InputStreamPlus *)id)->is, pos, SEEK_SET);
|
||||
}
|
||||
|
||||
static int set_pos_rel(void *id, int32_t delta, int mode)
|
||||
{
|
||||
return seekInputStream(((InputStreamPlus *)id)->is, delta, mode);
|
||||
}
|
||||
|
||||
static int push_back_byte(void *id, int c)
|
||||
{
|
||||
((InputStreamPlus *)id)->last_byte = c;
|
||||
return 1;
|
||||
}
|
||||
|
||||
static uint32_t get_length(void *id)
|
||||
{
|
||||
return ((InputStreamPlus *)id)->is->size;
|
||||
}
|
||||
|
||||
static int can_seek(void *id)
|
||||
{
|
||||
return ((InputStreamPlus *)id)->is->seekable;
|
||||
}
|
||||
|
||||
static WavpackStreamReader mpd_is_reader = {
|
||||
.read_bytes = read_bytes,
|
||||
.get_pos = get_pos,
|
||||
.set_pos_abs = set_pos_abs,
|
||||
.set_pos_rel = set_pos_rel,
|
||||
.push_back_byte = push_back_byte,
|
||||
.get_length = get_length,
|
||||
.can_seek = can_seek,
|
||||
.write_bytes = NULL /* no need to write edited tags */
|
||||
};
|
||||
|
||||
static void
|
||||
initInputStreamPlus(InputStreamPlus *isp, struct decoder *decoder,
|
||||
InputStream *is)
|
||||
{
|
||||
isp->decoder = decoder;
|
||||
isp->is = is;
|
||||
isp->last_byte = EOF;
|
||||
}
|
||||
|
||||
/*
|
||||
* Tries to decode the specified stream, and gives true if managed to do it.
|
||||
*/
|
||||
static bool wavpack_trydecode(InputStream *is)
|
||||
{
|
||||
char error[ERRORLEN];
|
||||
WavpackContext *wpc;
|
||||
InputStreamPlus isp;
|
||||
|
||||
initInputStreamPlus(&isp, NULL, is);
|
||||
wpc = WavpackOpenFileInputEx(&mpd_is_reader, &isp, NULL, error,
|
||||
OPEN_STREAMING, 0);
|
||||
if (wpc == NULL)
|
||||
return false;
|
||||
|
||||
WavpackCloseFile(wpc);
|
||||
/* Seek it back in order to play from the first byte. */
|
||||
seekInputStream(is, 0, SEEK_SET);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static int wavpack_open_wvc(struct decoder *decoder,
|
||||
InputStream *is_wvc)
|
||||
{
|
||||
char tmp[MPD_PATH_MAX];
|
||||
const char *utf8url;
|
||||
size_t len;
|
||||
char *wvc_url = NULL;
|
||||
int ret;
|
||||
|
||||
/*
|
||||
* As we use dc->utf8url, this function will be bad for
|
||||
* single files. utf8url is not absolute file path :/
|
||||
*/
|
||||
utf8url = decoder_get_url(decoder, tmp);
|
||||
if (utf8url == NULL)
|
||||
return 0;
|
||||
|
||||
len = strlen(utf8url);
|
||||
if (!len)
|
||||
return 0;
|
||||
|
||||
wvc_url = (char *)xmalloc(len + 2); /* +2: 'c' and EOS */
|
||||
if (wvc_url == NULL)
|
||||
return 0;
|
||||
|
||||
memcpy(wvc_url, utf8url, len);
|
||||
wvc_url[len] = 'c';
|
||||
wvc_url[len + 1] = '\0';
|
||||
|
||||
ret = openInputStream(is_wvc, wvc_url);
|
||||
free(wvc_url);
|
||||
|
||||
if (ret)
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* And we try to buffer in order to get know
|
||||
* about a possible 404 error.
|
||||
*/
|
||||
for (;;) {
|
||||
if (inputStreamAtEOF(is_wvc)) {
|
||||
/*
|
||||
* EOF is reached even without
|
||||
* a single byte is read...
|
||||
* So, this is not good :/
|
||||
*/
|
||||
closeInputStream(is_wvc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (bufferInputStream(is_wvc) >= 0)
|
||||
return 1;
|
||||
|
||||
if (decoder_get_command(decoder) != DECODE_COMMAND_NONE) {
|
||||
closeInputStream(is_wvc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Save some CPU */
|
||||
my_usleep(1000);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Decodes a stream.
|
||||
*/
|
||||
static int wavpack_streamdecode(struct decoder * decoder, InputStream *is)
|
||||
{
|
||||
char error[ERRORLEN];
|
||||
WavpackContext *wpc;
|
||||
InputStream is_wvc;
|
||||
int open_flags = OPEN_2CH_MAX | OPEN_NORMALIZE /*| OPEN_STREAMING*/;
|
||||
InputStreamPlus isp, isp_wvc;
|
||||
|
||||
if (wavpack_open_wvc(decoder, &is_wvc)) {
|
||||
initInputStreamPlus(&isp_wvc, decoder, &is_wvc);
|
||||
open_flags |= OPEN_WVC;
|
||||
}
|
||||
|
||||
initInputStreamPlus(&isp, decoder, is);
|
||||
wpc = WavpackOpenFileInputEx(&mpd_is_reader, &isp, &isp_wvc, error,
|
||||
open_flags, 15);
|
||||
|
||||
if (wpc == NULL) {
|
||||
ERROR("failed to open WavPack stream: %s\n", error);
|
||||
return -1;
|
||||
}
|
||||
|
||||
wavpack_decode(decoder, wpc, can_seek(&isp), NULL);
|
||||
|
||||
WavpackCloseFile(wpc);
|
||||
if (open_flags & OPEN_WVC)
|
||||
closeInputStream(&is_wvc);
|
||||
closeInputStream(is);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Decodes a file.
|
||||
*/
|
||||
static int wavpack_filedecode(struct decoder * decoder, char *fname)
|
||||
{
|
||||
char error[ERRORLEN];
|
||||
WavpackContext *wpc;
|
||||
ReplayGainInfo *replayGainInfo;
|
||||
|
||||
wpc = WavpackOpenFileInput(fname, error,
|
||||
OPEN_TAGS | OPEN_WVC |
|
||||
OPEN_2CH_MAX | OPEN_NORMALIZE, 15);
|
||||
if (wpc == NULL) {
|
||||
ERROR("failed to open WavPack file \"%s\": %s\n", fname, error);
|
||||
return -1;
|
||||
}
|
||||
|
||||
replayGainInfo = wavpack_replaygain(wpc);
|
||||
|
||||
wavpack_decode(decoder, wpc, 1, replayGainInfo);
|
||||
|
||||
if (replayGainInfo)
|
||||
freeReplayGainInfo(replayGainInfo);
|
||||
|
||||
WavpackCloseFile(wpc);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static char const *wavpackSuffixes[] = { "wv", NULL };
|
||||
static char const *wavpackMimeTypes[] = { "audio/x-wavpack", NULL };
|
||||
|
||||
struct decoder_plugin wavpackPlugin = {
|
||||
.name = "wavpack",
|
||||
.try_decode = wavpack_trydecode,
|
||||
.stream_decode = wavpack_streamdecode,
|
||||
.file_decode = wavpack_filedecode,
|
||||
.tag_dup = wavpack_tagdup,
|
||||
.stream_types = INPUT_PLUGIN_STREAM_FILE | INPUT_PLUGIN_STREAM_URL,
|
||||
.suffixes = wavpackSuffixes,
|
||||
.mime_types = wavpackMimeTypes
|
||||
};
|
||||
Reference in New Issue
Block a user