audio_format: convert to C++

1 files changed, 0 insertions, 316 deletions

diff --git a/src/audio_format.h b/src/audio_format.h
deleted file mode 100644
index 642eaa52a..000000000
--- a/src/audio_format.h
+++ /dev/null
@@ -1,316 +0,0 @@
-/*
- * Copyright (C) 2003-2011 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.
- */
-
-#ifndef MPD_AUDIO_FORMAT_H
-#define MPD_AUDIO_FORMAT_H
-
-#include "gcc.h"
-
-#include <stdint.h>
-#include <stdbool.h>
-#include <assert.h>
-
-enum sample_format {
-	SAMPLE_FORMAT_UNDEFINED = 0,
-
-	SAMPLE_FORMAT_S8,
-	SAMPLE_FORMAT_S16,
-
-	/**
-	 * Signed 24 bit integer samples, packed in 32 bit integers
-	 * (the most significant byte is filled with the sign bit).
-	 */
-	SAMPLE_FORMAT_S24_P32,
-
-	SAMPLE_FORMAT_S32,
-
-	/**
-	 * 32 bit floating point samples in the host's format.  The
-	 * range is -1.0f to +1.0f.
-	 */
-	SAMPLE_FORMAT_FLOAT,
-
-	/**
-	 * Direct Stream Digital.  1-bit samples; each frame has one
-	 * byte (8 samples) per channel.
-	 */
-	SAMPLE_FORMAT_DSD,
-};
-
-static const unsigned MAX_CHANNELS = 8;
-
-/**
- * This structure describes the format of a raw PCM stream.
- */
-struct audio_format {
-	/**
-	 * The sample rate in Hz.  A better name for this attribute is
-	 * "frame rate", because technically, you have two samples per
-	 * frame in stereo sound.
-	 */
-	uint32_t sample_rate;
-
-	/**
-	 * The format samples are stored in.  See the #sample_format
-	 * enum for valid values.
-	 */
-	uint8_t format;
-
-	/**
-	 * The number of channels.  Only mono (1) and stereo (2) are
-	 * fully supported currently.
-	 */
-	uint8_t channels;
-};
-
-/**
- * Buffer for audio_format_string().
- */
-struct audio_format_string {
-	char buffer[24];
-};
-
-/**
- * Clears the #audio_format object, i.e. sets all attributes to an
- * undefined (invalid) value.
- */
-static inline void audio_format_clear(struct audio_format *af)
-{
-	af->sample_rate = 0;
-	af->format = SAMPLE_FORMAT_UNDEFINED;
-	af->channels = 0;
-}
-
-/**
- * Initializes an #audio_format object, i.e. sets all
- * attributes to valid values.
- */
-static inline void audio_format_init(struct audio_format *af,
-				     uint32_t sample_rate,
-				     enum sample_format format, uint8_t channels)
-{
-	af->sample_rate = sample_rate;
-	af->format = (uint8_t)format;
-	af->channels = channels;
-}
-
-/**
- * Checks whether the specified #audio_format object has a defined
- * value.
- */
-static inline bool audio_format_defined(const struct audio_format *af)
-{
-	return af->sample_rate != 0;
-}
-
-/**
- * Checks whether the specified #audio_format object is full, i.e. all
- * attributes are defined.  This is more complete than
- * audio_format_defined(), but slower.
- */
-static inline bool
-audio_format_fully_defined(const struct audio_format *af)
-{
-	return af->sample_rate != 0 && af->format != SAMPLE_FORMAT_UNDEFINED &&
-		af->channels != 0;
-}
-
-/**
- * Checks whether the specified #audio_format object has at least one
- * defined value.
- */
-static inline bool
-audio_format_mask_defined(const struct audio_format *af)
-{
-	return af->sample_rate != 0 || af->format != SAMPLE_FORMAT_UNDEFINED ||
-		af->channels != 0;
-}
-
-/**
- * Checks whether the sample rate is valid.
- *
- * @param sample_rate the sample rate in Hz
- */
-static inline bool
-audio_valid_sample_rate(unsigned sample_rate)
-{
-	return sample_rate > 0 && sample_rate < (1 << 30);
-}
-
-/**
- * Checks whether the sample format is valid.
- *
- * @param bits the number of significant bits per sample
- */
-static inline bool
-audio_valid_sample_format(enum sample_format format)
-{
-	switch (format) {
-	case SAMPLE_FORMAT_S8:
-	case SAMPLE_FORMAT_S16:
-	case SAMPLE_FORMAT_S24_P32:
-	case SAMPLE_FORMAT_S32:
-	case SAMPLE_FORMAT_FLOAT:
-	case SAMPLE_FORMAT_DSD:
-		return true;
-
-	case SAMPLE_FORMAT_UNDEFINED:
-		break;
-	}
-
-	return false;
-}
-
-/**
- * Checks whether the number of channels is valid.
- */
-static inline bool
-audio_valid_channel_count(unsigned channels)
-{
-	return channels >= 1 && channels <= MAX_CHANNELS;
-}
-
-/**
- * Returns false if the format is not valid for playback with MPD.
- * This function performs some basic validity checks.
- */
-gcc_pure
-static inline bool audio_format_valid(const struct audio_format *af)
-{
-	return audio_valid_sample_rate(af->sample_rate) &&
-		audio_valid_sample_format((enum sample_format)af->format) &&
-		audio_valid_channel_count(af->channels);
-}
-
-/**
- * Returns false if the format mask is not valid for playback with
- * MPD.  This function performs some basic validity checks.
- */
-gcc_pure
-static inline bool audio_format_mask_valid(const struct audio_format *af)
-{
-	return (af->sample_rate == 0 ||
-		audio_valid_sample_rate(af->sample_rate)) &&
-		(af->format == SAMPLE_FORMAT_UNDEFINED ||
-		 audio_valid_sample_format((enum sample_format)af->format)) &&
-		(af->channels == 0 || audio_valid_channel_count(af->channels));
-}
-
-static inline bool audio_format_equals(const struct audio_format *a,
-				       const struct audio_format *b)
-{
-	return a->sample_rate == b->sample_rate &&
-		a->format == b->format &&
-		a->channels == b->channels;
-}
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-void
-audio_format_mask_apply(struct audio_format *af,
-			const struct audio_format *mask);
-
-gcc_const
-static inline unsigned
-sample_format_size(enum sample_format format)
-{
-	switch (format) {
-	case SAMPLE_FORMAT_S8:
-		return 1;
-
-	case SAMPLE_FORMAT_S16:
-		return 2;
-
-	case SAMPLE_FORMAT_S24_P32:
-	case SAMPLE_FORMAT_S32:
-	case SAMPLE_FORMAT_FLOAT:
-		return 4;
-
-	case SAMPLE_FORMAT_DSD:
-		/* each frame has 8 samples per channel */
-		return 1;
-
-	case SAMPLE_FORMAT_UNDEFINED:
-		return 0;
-	}
-
-	assert(false);
-	gcc_unreachable();
-}
-
-/**
- * Returns the size of each (mono) sample in bytes.
- */
-gcc_pure
-static inline unsigned audio_format_sample_size(const struct audio_format *af)
-{
-	return sample_format_size((enum sample_format)af->format);
-}
-
-/**
- * Returns the size of each full frame in bytes.
- */
-gcc_pure
-static inline unsigned
-audio_format_frame_size(const struct audio_format *af)
-{
-	return audio_format_sample_size(af) * af->channels;
-}
-
-/**
- * Returns the floating point factor which converts a time span to a
- * storage size in bytes.
- */
-gcc_pure
-static inline double audio_format_time_to_size(const struct audio_format *af)
-{
-	return af->sample_rate * audio_format_frame_size(af);
-}
-
-/**
- * Renders a #sample_format enum into a string, e.g. for printing it
- * in a log file.
- *
- * @param format a #sample_format enum value
- * @return the string
- */
-gcc_pure gcc_malloc
-const char *
-sample_format_to_string(enum sample_format format);
-
-/**
- * Renders the #audio_format object into a string, e.g. for printing
- * it in a log file.
- *
- * @param af the #audio_format object
- * @param s a buffer to print into
- * @return the string, or NULL if the #audio_format object is invalid
- */
-gcc_pure gcc_malloc
-const char *
-audio_format_to_string(const struct audio_format *af,
-		       struct audio_format_string *s);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif