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-rw-r--r--src/decoder/WavpackDecoderPlugin.cxx571
1 files changed, 0 insertions, 571 deletions
diff --git a/src/decoder/WavpackDecoderPlugin.cxx b/src/decoder/WavpackDecoderPlugin.cxx
deleted file mode 100644
index 98555c5e8..000000000
--- a/src/decoder/WavpackDecoderPlugin.cxx
+++ /dev/null
@@ -1,571 +0,0 @@
-/*
- * Copyright (C) 2003-2013 The Music Player Daemon Project
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-#include "WavpackDecoderPlugin.hxx"
-#include "DecoderAPI.hxx"
-#include "InputStream.hxx"
-#include "CheckAudioFormat.hxx"
-#include "tag/TagHandler.hxx"
-#include "tag/ApeTag.hxx"
-#include "util/Error.hxx"
-#include "util/Domain.hxx"
-#include "util/Macros.hxx"
-#include "Log.hxx"
-
-#include <wavpack/wavpack.h>
-#include <glib.h>
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#define ERRORLEN 80
-
-static constexpr Domain wavpack_domain("wavpack");
-
-/** A pointer type for format converter function. */
-typedef void (*format_samples_t)(
- int bytes_per_sample,
- void *buffer, uint32_t count
-);
-
-/*
- * This function has been borrowed from the tiny player found on
- * wavpack.com. Modifications were required because mpd only handles
- * max 24-bit samples.
- */
-static void
-format_samples_int(int bytes_per_sample, void *buffer, uint32_t count)
-{
- int32_t *src = (int32_t *)buffer;
-
- switch (bytes_per_sample) {
- case 1: {
- int8_t *dst = (int8_t *)buffer;
- /*
- * The asserts like the following one are because we do the
- * formatting of samples within a single buffer. The size
- * of the output samples never can be greater than the size
- * of the input ones. Otherwise we would have an overflow.
- */
- static_assert(sizeof(*dst) <= sizeof(*src), "Wrong size");
-
- /* pass through and align 8-bit samples */
- while (count--) {
- *dst++ = *src++;
- }
- break;
- }
- case 2: {
- uint16_t *dst = (uint16_t *)buffer;
- static_assert(sizeof(*dst) <= sizeof(*src), "Wrong size");
-
- /* pass through and align 16-bit samples */
- while (count--) {
- *dst++ = *src++;
- }
- break;
- }
-
- case 3:
- case 4:
- /* do nothing */
- break;
- }
-}
-
-/*
- * This function converts floating point sample data to 24-bit integer.
- */
-static void
-format_samples_float(gcc_unused int bytes_per_sample, void *buffer,
- uint32_t count)
-{
- float *p = (float *)buffer;
-
- while (count--) {
- *p /= (1 << 23);
- ++p;
- }
-}
-
-/**
- * Choose a MPD sample format from libwavpacks' number of bits.
- */
-static SampleFormat
-wavpack_bits_to_sample_format(bool is_float, int bytes_per_sample)
-{
- if (is_float)
- return SampleFormat::FLOAT;
-
- switch (bytes_per_sample) {
- case 1:
- return SampleFormat::S8;
-
- case 2:
- return SampleFormat::S16;
-
- case 3:
- return SampleFormat::S24_P32;
-
- case 4:
- return SampleFormat::S32;
-
- default:
- return SampleFormat::UNDEFINED;
- }
-}
-
-/*
- * This does the main decoding thing.
- * Requires an already opened WavpackContext.
- */
-static void
-wavpack_decode(Decoder &decoder, WavpackContext *wpc, bool can_seek)
-{
- bool is_float = (WavpackGetMode(wpc) & MODE_FLOAT) != 0;
- SampleFormat sample_format =
- wavpack_bits_to_sample_format(is_float,
- WavpackGetBytesPerSample(wpc));
-
- Error error;
- AudioFormat audio_format;
- if (!audio_format_init_checked(audio_format,
- WavpackGetSampleRate(wpc),
- sample_format,
- WavpackGetNumChannels(wpc), error)) {
- LogError(error);
- return;
- }
-
- const format_samples_t format_samples = is_float
- ? format_samples_float
- : format_samples_int;
-
- const float total_time = float(WavpackGetNumSamples(wpc))
- / audio_format.sample_rate;
-
- const int bytes_per_sample = WavpackGetBytesPerSample(wpc);
- const int output_sample_size = audio_format.GetFrameSize();
-
- /* wavpack gives us all kind of samples in a 32-bit space */
- int32_t chunk[1024];
- const uint32_t samples_requested = ARRAY_SIZE(chunk) /
- audio_format.channels;
-
- decoder_initialized(decoder, audio_format, can_seek, total_time);
-
- DecoderCommand cmd = decoder_get_command(decoder);
- while (cmd != DecoderCommand::STOP) {
- if (cmd == DecoderCommand::SEEK) {
- if (can_seek) {
- unsigned where = decoder_seek_where(decoder) *
- audio_format.sample_rate;
-
- if (WavpackSeekSample(wpc, where)) {
- decoder_command_finished(decoder);
- } else {
- decoder_seek_error(decoder);
- }
- } else {
- decoder_seek_error(decoder);
- }
- }
-
- uint32_t samples_got = WavpackUnpackSamples(wpc, chunk,
- samples_requested);
- if (samples_got == 0)
- break;
-
- int bitrate = (int)(WavpackGetInstantBitrate(wpc) / 1000 +
- 0.5);
- format_samples(bytes_per_sample, chunk,
- samples_got * audio_format.channels);
-
- cmd = decoder_data(decoder, nullptr, chunk,
- samples_got * output_sample_size,
- bitrate);
- }
-}
-
-/**
- * Locate and parse a floating point tag. Returns true if it was
- * found.
- */
-static bool
-wavpack_tag_float(WavpackContext *wpc, const char *key, float *value_r)
-{
- char buffer[64];
- if (WavpackGetTagItem(wpc, key, buffer, sizeof(buffer)) <= 0)
- return false;
-
- *value_r = atof(buffer);
- return true;
-}
-
-static bool
-wavpack_replaygain(ReplayGainInfo &rgi,
- WavpackContext *wpc)
-{
- rgi.Clear();
-
- bool found = false;
- found |= wavpack_tag_float(wpc, "replaygain_track_gain",
- &rgi.tuples[REPLAY_GAIN_TRACK].gain);
- found |= wavpack_tag_float(wpc, "replaygain_track_peak",
- &rgi.tuples[REPLAY_GAIN_TRACK].peak);
- found |= wavpack_tag_float(wpc, "replaygain_album_gain",
- &rgi.tuples[REPLAY_GAIN_ALBUM].gain);
- found |= wavpack_tag_float(wpc, "replaygain_album_peak",
- &rgi.tuples[REPLAY_GAIN_ALBUM].peak);
-
- return found;
-}
-
-static void
-wavpack_scan_tag_item(WavpackContext *wpc, const char *name,
- TagType type,
- const struct tag_handler *handler, void *handler_ctx)
-{
- char buffer[1024];
- int len = WavpackGetTagItem(wpc, name, buffer, sizeof(buffer));
- if (len <= 0 || (unsigned)len >= sizeof(buffer))
- return;
-
- tag_handler_invoke_tag(handler, handler_ctx, type, buffer);
-
-}
-
-static void
-wavpack_scan_pair(WavpackContext *wpc, const char *name,
- const struct tag_handler *handler, void *handler_ctx)
-{
- char buffer[8192];
- int len = WavpackGetTagItem(wpc, name, buffer, sizeof(buffer));
- if (len <= 0 || (unsigned)len >= sizeof(buffer))
- return;
-
- tag_handler_invoke_pair(handler, handler_ctx, name, buffer);
-}
-
-/*
- * Reads metainfo from the specified file.
- */
-static bool
-wavpack_scan_file(const char *fname,
- const struct tag_handler *handler, void *handler_ctx)
-{
- char error[ERRORLEN];
- WavpackContext *wpc = WavpackOpenFileInput(fname, error, OPEN_TAGS, 0);
- if (wpc == nullptr) {
- FormatError(wavpack_domain,
- "failed to open WavPack file \"%s\": %s",
- fname, error);
- return false;
- }
-
- tag_handler_invoke_duration(handler, handler_ctx,
- WavpackGetNumSamples(wpc) /
- WavpackGetSampleRate(wpc));
-
- /* the WavPack format implies APEv2 tags, which means we can
- reuse the mapping from tag_ape.c */
-
- for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i) {
- const char *name = tag_item_names[i];
- if (name != nullptr)
- wavpack_scan_tag_item(wpc, name, (TagType)i,
- handler, handler_ctx);
- }
-
- for (const struct tag_table *i = ape_tags; i->name != nullptr; ++i)
- wavpack_scan_tag_item(wpc, i->name, i->type,
- handler, handler_ctx);
-
- if (handler->pair != nullptr) {
- char name[64];
-
- for (int i = 0, n = WavpackGetNumTagItems(wpc);
- i < n; ++i) {
- int len = WavpackGetTagItemIndexed(wpc, i, name,
- sizeof(name));
- if (len <= 0 || (unsigned)len >= sizeof(name))
- continue;
-
- wavpack_scan_pair(wpc, name, handler, handler_ctx);
- }
- }
-
- WavpackCloseFile(wpc);
-
- return true;
-}
-
-/*
- * mpd input_stream <=> WavpackStreamReader wrapper callbacks
- */
-
-/* This struct is needed for per-stream last_byte storage. */
-struct wavpack_input {
- Decoder *decoder;
- InputStream *is;
- /* Needed for push_back_byte() */
- int last_byte;
-};
-
-/**
- * Little wrapper for struct wavpack_input to cast from void *.
- */
-static struct wavpack_input *
-wpin(void *id)
-{
- assert(id);
- return (struct wavpack_input *)id;
-}
-
-static int32_t
-wavpack_input_read_bytes(void *id, void *data, int32_t bcount)
-{
- uint8_t *buf = (uint8_t *)data;
- int32_t i = 0;
-
- if (wpin(id)->last_byte != EOF) {
- *buf++ = wpin(id)->last_byte;
- wpin(id)->last_byte = EOF;
- --bcount;
- ++i;
- }
-
- /* wavpack fails if we return a partial read, so we just wait
- until the buffer is full */
- while (bcount > 0) {
- size_t nbytes = decoder_read(
- wpin(id)->decoder, *wpin(id)->is, buf, bcount
- );
- if (nbytes == 0) {
- /* EOF, error or a decoder command */
- break;
- }
-
- i += nbytes;
- bcount -= nbytes;
- buf += nbytes;
- }
-
- return i;
-}
-
-static uint32_t
-wavpack_input_get_pos(void *id)
-{
- return wpin(id)->is->offset;
-}
-
-static int
-wavpack_input_set_pos_abs(void *id, uint32_t pos)
-{
- return wpin(id)->is->LockSeek(pos, SEEK_SET, IgnoreError()) ? 0 : -1;
-}
-
-static int
-wavpack_input_set_pos_rel(void *id, int32_t delta, int mode)
-{
- return wpin(id)->is->LockSeek(delta, mode, IgnoreError()) ? 0 : -1;
-}
-
-static int
-wavpack_input_push_back_byte(void *id, int c)
-{
- if (wpin(id)->last_byte == EOF) {
- wpin(id)->last_byte = c;
- return c;
- } else {
- return EOF;
- }
-}
-
-static uint32_t
-wavpack_input_get_length(void *id)
-{
- if (wpin(id)->is->size < 0)
- return 0;
-
- return wpin(id)->is->size;
-}
-
-static int
-wavpack_input_can_seek(void *id)
-{
- return wpin(id)->is->seekable;
-}
-
-static WavpackStreamReader mpd_is_reader = {
- wavpack_input_read_bytes,
- wavpack_input_get_pos,
- wavpack_input_set_pos_abs,
- wavpack_input_set_pos_rel,
- wavpack_input_push_back_byte,
- wavpack_input_get_length,
- wavpack_input_can_seek,
- nullptr /* no need to write edited tags */
-};
-
-static void
-wavpack_input_init(struct wavpack_input *isp, Decoder &decoder,
- InputStream &is)
-{
- isp->decoder = &decoder;
- isp->is = &is;
- isp->last_byte = EOF;
-}
-
-static InputStream *
-wavpack_open_wvc(Decoder &decoder, const char *uri,
- Mutex &mutex, Cond &cond,
- struct wavpack_input *wpi)
-{
- /*
- * As we use dc->utf8url, this function will be bad for
- * single files. utf8url is not absolute file path :/
- */
- if (uri == nullptr)
- return nullptr;
-
- char *wvc_url = g_strconcat(uri, "c", nullptr);
-
- InputStream *is_wvc = InputStream::Open(wvc_url, mutex, cond,
- IgnoreError());
- g_free(wvc_url);
-
- if (is_wvc == nullptr)
- return nullptr;
-
- /*
- * And we try to buffer in order to get know
- * about a possible 404 error.
- */
- char first_byte;
- size_t nbytes = decoder_read(decoder, *is_wvc,
- &first_byte, sizeof(first_byte));
- if (nbytes == 0) {
- is_wvc->Close();
- return nullptr;
- }
-
- /* push it back */
- wavpack_input_init(wpi, decoder, *is_wvc);
- wpi->last_byte = first_byte;
- return is_wvc;
-}
-
-/*
- * Decodes a stream.
- */
-static void
-wavpack_streamdecode(Decoder &decoder, InputStream &is)
-{
- int open_flags = OPEN_NORMALIZE;
- bool can_seek = is.seekable;
-
- wavpack_input isp_wvc;
- InputStream *is_wvc = wavpack_open_wvc(decoder, is.uri.c_str(),
- is.mutex, is.cond,
- &isp_wvc);
- if (is_wvc != nullptr) {
- open_flags |= OPEN_WVC;
- can_seek &= is_wvc->seekable;
- }
-
- if (!can_seek) {
- open_flags |= OPEN_STREAMING;
- }
-
- wavpack_input isp;
- wavpack_input_init(&isp, decoder, is);
-
- char error[ERRORLEN];
- WavpackContext *wpc =
- WavpackOpenFileInputEx(&mpd_is_reader, &isp,
- open_flags & OPEN_WVC
- ? &isp_wvc : nullptr,
- error, open_flags, 23);
-
- if (wpc == nullptr) {
- FormatError(wavpack_domain,
- "failed to open WavPack stream: %s", error);
- return;
- }
-
- wavpack_decode(decoder, wpc, can_seek);
-
- WavpackCloseFile(wpc);
- if (open_flags & OPEN_WVC) {
- is_wvc->Close();
- }
-}
-
-/*
- * Decodes a file.
- */
-static void
-wavpack_filedecode(Decoder &decoder, const char *fname)
-{
- char error[ERRORLEN];
- WavpackContext *wpc = WavpackOpenFileInput(fname, error,
- OPEN_TAGS | OPEN_WVC | OPEN_NORMALIZE,
- 23);
- if (wpc == nullptr) {
- FormatWarning(wavpack_domain,
- "failed to open WavPack file \"%s\": %s",
- fname, error);
- return;
- }
-
- ReplayGainInfo rgi;
- if (wavpack_replaygain(rgi, wpc))
- decoder_replay_gain(decoder, &rgi);
-
- wavpack_decode(decoder, wpc, true);
-
- WavpackCloseFile(wpc);
-}
-
-static char const *const wavpack_suffixes[] = {
- "wv",
- nullptr
-};
-
-static char const *const wavpack_mime_types[] = {
- "audio/x-wavpack",
- nullptr
-};
-
-const struct DecoderPlugin wavpack_decoder_plugin = {
- "wavpack",
- nullptr,
- nullptr,
- wavpack_streamdecode,
- wavpack_filedecode,
- wavpack_scan_file,
- nullptr,
- nullptr,
- wavpack_suffixes,
- wavpack_mime_types
-};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 19:19:18 +0000