replace foxenflac with miniflac

it's better!

1 files changed, 0 insertions, 297 deletions

diff --git a/lib/libfoxenflac/include/foxen/flac.h b/lib/libfoxenflac/include/foxen/flac.h
deleted file mode 100644
index ec89ea36..00000000
--- a/lib/libfoxenflac/include/foxen/flac.h
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- *  libfoxenflac -- Tiny FLAC Decoder Library
- *  Copyright (C) 2018-2022  Andreas Stöckel
- *
- *  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, see <https://www.gnu.org/licenses/>.
- */
-
-/**
- * @file flac.h
- *
- * Provides a decoder for FLAC (Free Lossless Audio Codec).
- *
- * @author Andreas Stöckel
- */
-
-#ifndef FOXEN_FLAC_H
-#define FOXEN_FLAC_H
-
-#include <stdint.h>
-
-#ifndef FX_EXPORT
-#if __EMSCRIPTEN__
-#import <emscripten.h>
-#define FX_EXPORT EMSCRIPTEN_KEEPALIVE
-#else
-#define FX_EXPORT
-#endif /* __EMSCRIPTEN__ */
-#endif /* FX_EXPORT */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * Value returned by the fx_flac_get_streaminfo() method if the given streaminfo
- * key is invalid.
- */
-#define FLAC_INVALID_METADATA_KEY 0x7FFFFFFFFFFFFFFFULL
-
-/**
- * Maximum number of channels that can be encoded in a FLAC stream.
- */
-#define FLAC_MAX_CHANNEL_COUNT 8U
-
-/**
- * Maximum block size that can be used if the stream is encoded in the FLAC
- * Subset format and the sample rate is smaller than 48000 kHz.
- */
-#define FLAC_SUBSET_MAX_BLOCK_SIZE_48KHZ 4608U
-
-/**
- * Maximum block size than can always be safely used if the stream is encoded
- * in the FLAC Subset format.
- */
-#define FLAC_SUBSET_MAX_BLOCK_SIZE 16384U
-
-/**
- * Maximum block size in samples that can be used in a FLAC stream.
- */
-#define FLAC_MAX_BLOCK_SIZE 65535U
-
-/**
- * Opaque struct representing a FLAC decoder.
- */
-struct fx_flac;
-
-/**
- * Typedef for the fx_flac struct.
- */
-typedef struct fx_flac fx_flac_t;
-
-/**
- * Enum representing the state of a FLAC decoder instance.
- */
-typedef enum {
-	/**
-	 * The decoder is in an error state; the decoder cannot recover from this
-	 * error. This error may for example occur if the data in the stream is
-	 * invalid, or the stream has a format that is outside the maximum specs
-	 * that are supported by the decoder. Call fx_flac_reset() and start anew!
-	 */
-	FLAC_ERR = -1,
-
-	/**
-	 * The decoder is currently in its initial state, fx_flac_process() has not
-	 * been called.
-	 */
-	FLAC_INIT = 0,
-
-	/**
-	 * The decoder found the beginning of the metadata packet!
-	 */
-	FLAC_IN_METADATA = 1,
-
-	/**
-	 * The decoder is done reading the current metadata block, this may be
-	 * followed by more metadata blocks, in which case the state is reset to
-	 * FLAC_IN_METADATA.
-	 */
-	FLAC_END_OF_METADATA = 2,
-
-	/**
-	 * The decoder is currently searching for an audio frame.
-	 */
-	FLAC_SEARCH_FRAME = 3,
-
-	/**
-	 * The decoder is currently inside the stream of audio frames.
-	 */
-	FLAC_IN_FRAME = 4,
-
-	/**
-	 * The decoder successfully decoded an entire frame. Write the data to the
-	 * client.
-	 */
-	FLAC_DECODED_FRAME = 5,
-
-	/**
-	 * The decoder reached the end of a block.
-	 */
-	FLAC_END_OF_FRAME = 6
-} fx_flac_state_t;
-
-/**
- * Enum used in fx_flac_get_streaminfo() to query metadata about the stream.
- */
-typedef enum {
-	FLAC_KEY_MIN_BLOCK_SIZE = 0,
-	FLAC_KEY_MAX_BLOCK_SIZE = 1,
-	FLAC_KEY_MIN_FRAME_SIZE = 2,
-	FLAC_KEY_MAX_FRAME_SIZE = 3,
-	FLAC_KEY_SAMPLE_RATE = 4,
-	FLAC_KEY_N_CHANNELS = 5,
-	FLAC_KEY_SAMPLE_SIZE = 6,
-	FLAC_KEY_N_SAMPLES = 7,
-	FLAC_KEY_MD5_SUM_0 = 128,
-	FLAC_KEY_MD5_SUM_1 = 129,
-	FLAC_KEY_MD5_SUM_2 = 130,
-	FLAC_KEY_MD5_SUM_3 = 131,
-	FLAC_KEY_MD5_SUM_4 = 132,
-	FLAC_KEY_MD5_SUM_5 = 133,
-	FLAC_KEY_MD5_SUM_6 = 134,
-	FLAC_KEY_MD5_SUM_7 = 135,
-	FLAC_KEY_MD5_SUM_8 = 136,
-	FLAC_KEY_MD5_SUM_9 = 137,
-	FLAC_KEY_MD5_SUM_A = 138,
-	FLAC_KEY_MD5_SUM_B = 139,
-	FLAC_KEY_MD5_SUM_C = 140,
-	FLAC_KEY_MD5_SUM_D = 141,
-	FLAC_KEY_MD5_SUM_E = 142,
-	FLAC_KEY_MD5_SUM_F = 143,
-} fx_flac_streaminfo_key_t;
-
-/**
- * Returns the size of the FLAC decoder instance in bytes. This assumes that the
- * FLAC audio that is being decoded uses the maximum settings, i.e. the largest
- * bit depth and block size. See fx_flac_init() regarding parameters.
- *
- * @return zero if the given parameters are out of range, the number of bytes
- * required to hold the FLAC decoder structure otherwise.
- */
-FX_EXPORT uint32_t fx_flac_size(uint32_t max_block_size, uint8_t max_channels);
-
-/**
- * Initializes the FLAC decoder at the given memory location. Each decoder can
- * decode exactly one stream at a time.
- *
- * @param mem is a pointer at the memory region at which the FLAC decoder should
- * store its private data. The memory region must be at last as large as
- * indicated by fx_flac_size(). May be NULL, in which case NULL is returned.
- * @param max_block_size is the maximum block size for which the FLAC instance
- * will provide a buffer. For streams in the Subset format (which is used per
- * default in most FLAC encoders), max_block_size should can be set to 4608 if
- * the sample rate is <= 48000kHz, otherwise, for larger sample rates,
- * max_block_size must be set to 16384.
- * @param max_channels is the maximum number of channels that will be decoded.
- * @return a pointer at the FLAC decoder instance; note that this pointer may be
- * different from what was passed to mem. However, you may still pass the
- * original `mem` as `inst` parameter to other functions. Returns NULL if the
- * input pointer is NULL or the given parameters are invalid.
- */
-FX_EXPORT fx_flac_t *fx_flac_init(void *mem, uint16_t max_block_size,
-                                  uint8_t max_channels);
-
-/**
- * Macro which calls malloc to allocate memory for a new fx_flac instance. The
- * returned pointer must be freed using free. Returns NULL if the allocation
- * fails or the given parameters are invalid.
- *
- * Note that this code is implemented as a macro to prevent explicitly having
- * a dependency on malloc while still providing a convenient allocation routine.
- */
-#define FX_FLAC_ALLOC(max_block_size, max_channels)                            \
-	(fx_flac_size((max_block_size), (max_channels)) == 0U)                     \
-	    ? NULL                                                                 \
-	    : fx_flac_init(malloc(fx_flac_size((max_block_size), (max_channels))), \
-	                   (max_block_size), (max_channels))
-
-/**
- * Returns a new fx_flac instance that is sufficient to decode FLAC streams in
- * the FLAC Subset format with DAT parameters, i.e. up to 48 kHz, and two
- * channels. This will allocate about 40 kiB of memory.
- */
-#define FX_FLAC_ALLOC_SUBSET_FORMAT_DAT() \
-	FX_FLAC_ALLOC(FLAC_SUBSET_MAX_BLOCK_SIZE_48KHZ, 2U)
-
-/**
- * Returns a new fx_flac instance that is sufficient to decode FLAC streams in
- * the FLAC Subset format. This will allocate about 1.5 MiB of memory.
- */
-#define FX_FLAC_ALLOC_SUBSET_FORMAT_ANY() \
-	FX_FLAC_ALLOC(FLAC_SUBSET_MAX_BLOCK_SIZE, FLAC_MAX_CHANNEL_COUNT)
-
-/**
- * Returns a new fx_flac instance that is sufficient to decode any valid FLAC
- * stream. Note that this will allocate between 2-3 MiB of memory.
- */
-#define FX_FLAC_ALLOC_DEFAULT() \
-	FX_FLAC_ALLOC(FLAC_MAX_BLOCK_SIZE, FLAC_MAX_CHANNEL_COUNT)
-
-/**
- * Resets the FLAC decoder.
- *
- * @param inst is the FLAC decoder that should be reset.
- */
-FX_EXPORT void fx_flac_reset(fx_flac_t *inst);
-
-/**
- * Returns the current decoder state.
- *
- * @param inst is the FLAC decoder instance for which the state should be
- * returned.
- * @return the current state of the decoder.
- */
-FX_EXPORT fx_flac_state_t fx_flac_get_state(const fx_flac_t *inst);
-
-/**
- * Returns metadata about the FLAC stream that is currently being parsed. This
- * function may only be called if the decoder is in the state
- * FLAC_END_OF_METADATA or greater, otherwise the result may be undefined
- * (it will likely return zero for most of the metadata keys).
- *
- * @param inst is a pointer at the FLAC decoder instance for which the metadata
- * should be retrieved.
- * @param key is the metadata that should be retrieved.
- * @return the requested metadata value or FLAC_INVALID_METADATA_KEY if the
- * given key is unknown.
- */
-FX_EXPORT int64_t fx_flac_get_streaminfo(const fx_flac_t *inst,
-                                         fx_flac_streaminfo_key_t key);
-
-/**
- * Decodes the given raw FLAC data; the given data must be RAW FLAC data as
- * specified in the FLAC format specification https://xiph.org/flac/format.html
- * This function will always return right after the decoder transitions to a new
- * relevant state.
- *
- * @param inst is the decoder instance.
- * @param in is a pointer at the encoded bytestream.
- * @param in_len is a pointer at a integer containing the number of valid bytes
- * in "in". After the function returns, in will contain the number of bytes that
- * were actually read. This number may be zero if the decoder is in the FLAC_ERR
- * or FLAC_STREAM_DONE state, or the internal buffers are full and need to be
- * flushed to the provided output first.
- * @param out is a pointer at a memory region that will accept the decoded
- * interleaved audio data. Samples are decoded as 32-bit signed integer; the
- * minimum and maximum value will depend on the original bit depth of the audio
- * stored in the bitstream. If this is NULL, the decoder will silently discard
- * the output.
- * @param out_len is a pointer at an integer containing the number of available
- * signed 32-bit integers at the memory address pointed at by out. After the
- * function returns, this value will contain the number of samples that were
- * written. If this is NULL, the deocder will silently discard the output.
- * @return the current state of the decoder. If the state transitions to
- * FLAC_END_OF_METADATA, FLAC_END_OF_FRAME or FLAC_END_OF_STREAM this function
- * will return immediately; only the data up to the point causing the transition
- * has been read.
- */
-FX_EXPORT fx_flac_state_t fx_flac_process(fx_flac_t *inst, const uint8_t *in,
-                                          uint32_t *in_len, int32_t *out,
-                                          uint32_t *out_len);
-
-#ifdef __cplusplus
-}
-#endif
-#endif /* FOXEN_FLAC_H */