oysteikt/mpd
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decoder_buffer: convert to C++

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This commit is contained in:
Max Kellermann 2013-04-17 22:45:10 +02:00
parent 257b42b87f
commit abaabe92d6
4 changed files with 38 additions and 42 deletions
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3
Makefile.am
View File

@ -60,7 +60,6 @@ mpd_headers = \
src/conf.h \
src/decoder_plugin.h \
src/decoder_command.h \
src/decoder_buffer.h \
src/decoder_api.h \
src/decoder_plugin.h \
src/encoder_plugin.h \
@ -455,7 +454,7 @@ libdecoder_plugins_a_SOURCES = \
src/decoder/dsf_decoder_plugin.h \
src/decoder/dsdlib.c \
src/decoder/dsdlib.h \
src/decoder_buffer.c \
src/DecoderBuffer.cxx src/DecoderBuffer.hxx \
src/DecoderPlugin.cxx \
src/DecoderList.cxx src/DecoderList.hxx
libdecoder_plugins_a_CPPFLAGS = $(AM_CPPFLAGS) \

34
src/decoder_buffer.c → src/DecoderBuffer.cxx
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2003-2011 The Music Player Daemon Project
* 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
@ -18,14 +18,14 @@
*/
#include "config.h"
#include "decoder_buffer.h"
#include "DecoderBuffer.hxx"
#include "decoder_api.h"
#include <glib.h>
#include <assert.h>
struct decoder_buffer {
struct DecoderBuffer {
struct decoder *decoder;
struct input_stream *is;
@ -43,14 +43,14 @@ struct decoder_buffer {
unsigned char data[sizeof(size_t)];
};
struct decoder_buffer *
DecoderBuffer *
decoder_buffer_new(struct decoder *decoder, struct input_stream *is,
size_t size)
{
struct decoder_buffer *buffer =
DecoderBuffer *buffer = (DecoderBuffer *)
g_malloc(sizeof(*buffer) - sizeof(buffer->data) + size);
assert(is != NULL);
assert(is != nullptr);
assert(size > 0);
buffer->decoder = decoder;
@ -63,27 +63,27 @@ decoder_buffer_new(struct decoder *decoder, struct input_stream *is,
}
void
decoder_buffer_free(struct decoder_buffer *buffer)
decoder_buffer_free(DecoderBuffer *buffer)
{
assert(buffer != NULL);
assert(buffer != nullptr);
g_free(buffer);
}
bool
decoder_buffer_is_empty(const struct decoder_buffer *buffer)
decoder_buffer_is_empty(const DecoderBuffer *buffer)
{
return buffer->consumed == buffer->length;
}
bool
decoder_buffer_is_full(const struct decoder_buffer *buffer)
decoder_buffer_is_full(const DecoderBuffer *buffer)
{
return buffer->consumed == 0 && buffer->length == buffer->size;
}
static void
decoder_buffer_shift(struct decoder_buffer *buffer)
decoder_buffer_shift(DecoderBuffer *buffer)
{
assert(buffer->consumed > 0);
@ -93,7 +93,7 @@ decoder_buffer_shift(struct decoder_buffer *buffer)
}
bool
decoder_buffer_fill(struct decoder_buffer *buffer)
decoder_buffer_fill(DecoderBuffer *buffer)
{
size_t nbytes;
@ -119,18 +119,18 @@ decoder_buffer_fill(struct decoder_buffer *buffer)
}
const void *
decoder_buffer_read(const struct decoder_buffer *buffer, size_t *length_r)
decoder_buffer_read(const DecoderBuffer *buffer, size_t *length_r)
{
if (buffer->consumed >= buffer->length)
/* buffer is empty */
return NULL;
return nullptr;
*length_r = buffer->length - buffer->consumed;
return buffer->data + buffer->consumed;
}
void
decoder_buffer_consume(struct decoder_buffer *buffer, size_t nbytes)
decoder_buffer_consume(DecoderBuffer *buffer, size_t nbytes)
{
/* just move the "consumed" pointer - decoder_buffer_shift()
will do the real work later (called by
@ -141,7 +141,7 @@ decoder_buffer_consume(struct decoder_buffer *buffer, size_t nbytes)
}
bool
decoder_buffer_skip(struct decoder_buffer *buffer, size_t nbytes)
decoder_buffer_skip(DecoderBuffer *buffer, size_t nbytes)
{
size_t length;
const void *data;
@ -151,7 +151,7 @@ decoder_buffer_skip(struct decoder_buffer *buffer, size_t nbytes)
while (true) {
data = decoder_buffer_read(buffer, &length);
if (data != NULL) {
if (data != nullptr) {
if (length > nbytes)
length = nbytes;
decoder_buffer_consume(buffer, length);

25
src/decoder_buffer.h → src/DecoderBuffer.hxx
View File

@ -1,5 +1,5 @@
/*
* Copyright (C) 2003-2011 The Music Player Daemon Project
* 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
@ -17,10 +17,9 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_DECODER_BUFFER_H
#define MPD_DECODER_BUFFER_H
#ifndef MPD_DECODER_BUFFER_HXX
#define MPD_DECODER_BUFFER_HXX
#include <stdbool.h>
#include <stddef.h>
/**
@ -28,7 +27,7 @@
* create a buffer object, and use its high-level methods to fill and
* read it. It will automatically handle shifting the buffer.
*/
struct decoder_buffer;
struct DecoderBuffer;
struct decoder;
struct input_stream;
@ -41,7 +40,7 @@ struct input_stream;
* @param size the maximum size of the buffer
* @return the new decoder_buffer object
*/
struct decoder_buffer *
DecoderBuffer *
decoder_buffer_new(struct decoder *decoder, struct input_stream *is,
size_t size);
@ -49,13 +48,13 @@ decoder_buffer_new(struct decoder *decoder, struct input_stream *is,
* Frees resources used by the decoder_buffer object.
*/
void
decoder_buffer_free(struct decoder_buffer *buffer);
decoder_buffer_free(DecoderBuffer *buffer);
bool
decoder_buffer_is_empty(const struct decoder_buffer *buffer);
decoder_buffer_is_empty(const DecoderBuffer *buffer);
bool
decoder_buffer_is_full(const struct decoder_buffer *buffer);
decoder_buffer_is_full(const DecoderBuffer *buffer);
/**
* Read data from the input_stream and append it to the buffer.
@ -65,7 +64,7 @@ decoder_buffer_is_full(const struct decoder_buffer *buffer);
* received
*/
bool
decoder_buffer_fill(struct decoder_buffer *buffer);
decoder_buffer_fill(DecoderBuffer *buffer);
/**
* Reads data from the buffer. This data is not yet consumed, you
@ -80,7 +79,7 @@ decoder_buffer_fill(struct decoder_buffer *buffer);
* available
*/
const void *
decoder_buffer_read(const struct decoder_buffer *buffer, size_t *length_r);
decoder_buffer_read(const DecoderBuffer *buffer, size_t *length_r);
/**
* Consume (delete, invalidate) a part of the buffer. The "nbytes"
@ -91,7 +90,7 @@ decoder_buffer_read(const struct decoder_buffer *buffer, size_t *length_r);
* @param nbytes the number of bytes to consume
*/
void
decoder_buffer_consume(struct decoder_buffer *buffer, size_t nbytes);
decoder_buffer_consume(DecoderBuffer *buffer, size_t nbytes);
/**
* Skips the specified number of bytes, discarding its data.
@ -101,6 +100,6 @@ decoder_buffer_consume(struct decoder_buffer *buffer, size_t nbytes);
* @return true on success, false on error
*/
bool
decoder_buffer_skip(struct decoder_buffer *buffer, size_t nbytes);
decoder_buffer_skip(DecoderBuffer *buffer, size_t nbytes);
#endif

18
src/decoder/FaadDecoderPlugin.cxx
View File

@ -20,9 +20,7 @@
#include "config.h"
#include "FaadDecoderPlugin.hxx"
#include "decoder_api.h"
extern "C" {
#include "decoder_buffer.h"
}
#include "DecoderBuffer.hxx"
#include "audio_check.h"
#include "tag_handler.h"
@ -73,7 +71,7 @@ adts_check_frame(const unsigned char *data)
* found or if not enough data is available.
*/
static size_t
adts_find_frame(struct decoder_buffer *buffer)
adts_find_frame(DecoderBuffer *buffer)
{
size_t length, frame_length;
bool ret;
@ -138,7 +136,7 @@ adts_find_frame(struct decoder_buffer *buffer)
}
static float
adts_song_duration(struct decoder_buffer *buffer)
adts_song_duration(DecoderBuffer *buffer)
{
unsigned int frames, frame_length;
unsigned sample_rate = 0;
@ -172,7 +170,7 @@ adts_song_duration(struct decoder_buffer *buffer)
}
static float
faad_song_duration(struct decoder_buffer *buffer, struct input_stream *is)
faad_song_duration(DecoderBuffer *buffer, struct input_stream *is)
{
size_t fileread;
size_t tagsize;
@ -248,7 +246,7 @@ faad_song_duration(struct decoder_buffer *buffer, struct input_stream *is)
* inconsistencies in libfaad.
*/
static bool
faad_decoder_init(NeAACDecHandle decoder, struct decoder_buffer *buffer,
faad_decoder_init(NeAACDecHandle decoder, DecoderBuffer *buffer,
struct audio_format *audio_format, GError **error_r)
{
int32_t nbytes;
@ -294,7 +292,7 @@ faad_decoder_init(NeAACDecHandle decoder, struct decoder_buffer *buffer,
* inconsistencies in libfaad.
*/
static const void *
faad_decoder_decode(NeAACDecHandle decoder, struct decoder_buffer *buffer,
faad_decoder_decode(NeAACDecHandle decoder, DecoderBuffer *buffer,
NeAACDecFrameInfo *frame_info)
{
size_t length;
@ -317,7 +315,7 @@ faad_decoder_decode(NeAACDecHandle decoder, struct decoder_buffer *buffer,
static float
faad_get_file_time_float(struct input_stream *is)
{
struct decoder_buffer *buffer;
DecoderBuffer *buffer;
float length;
buffer = decoder_buffer_new(nullptr, is,
@ -374,7 +372,7 @@ faad_stream_decode(struct decoder *mpd_decoder, struct input_stream *is)
struct audio_format audio_format;
bool ret;
uint16_t bit_rate = 0;
struct decoder_buffer *buffer;
DecoderBuffer *buffer;
enum decoder_command cmd;
buffer = decoder_buffer_new(mpd_decoder, is,