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decoder/dsdlib: convert struct dsdlib_id to a class

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This commit is contained in:
Max Kellermann 2013-10-28 23:12:48 +01:00
parent c37edfd3e9
commit fd3dc7e5fb
4 changed files with 35 additions and 34 deletions
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7
src/decoder/DsdLib.cxx
View File

@ -41,13 +41,12 @@
#endif
bool
dsdlib_id_equals(const struct dsdlib_id *id, const char *s)
DsdId::Equals(const char *s) const
{
assert(id != nullptr);
assert(s != nullptr);
assert(strlen(s) == sizeof(id->value));
assert(strlen(s) == sizeof(value));
return memcmp(id->value, s, sizeof(id->value)) == 0;
return memcmp(value, s, sizeof(value)) == 0;
}
bool

10
src/decoder/DsdLib.hxx
View File

@ -20,18 +20,20 @@
#ifndef MPD_DECODER_DSDLIB_HXX
#define MPD_DECODER_DSDLIB_HXX
#include "Compiler.h"
#include <stdlib.h>
#include <stdint.h>
struct Decoder;
struct InputStream;
struct dsdlib_id {
struct DsdId {
char value[4];
};
bool
dsdlib_id_equals(const struct dsdlib_id *id, const char *s);
gcc_pure
bool Equals(const char *s) const;
};
bool
dsdlib_read(Decoder *decoder, InputStream &is,

40
src/decoder/DsdiffDecoderPlugin.cxx
View File

@ -42,13 +42,13 @@
#include <stdio.h> /* for SEEK_SET, SEEK_CUR */
struct DsdiffHeader {
struct dsdlib_id id;
DsdId id;
uint32_t size_high, size_low;
struct dsdlib_id format;
DsdId format;
};
struct DsdiffChunkHeader {
struct dsdlib_id id;
DsdId id;
uint32_t size_high, size_low;
/**
@ -92,7 +92,7 @@ dsdiff_init(const config_param &param)
static bool
dsdiff_read_id(Decoder *decoder, InputStream &is,
struct dsdlib_id *id)
DsdId *id)
{
return dsdlib_read(decoder, is, id, sizeof(*id));
}
@ -135,7 +135,7 @@ dsdiff_read_prop_snd(Decoder *decoder, InputStream &is,
if (chunk_end_offset > end_offset)
return false;
if (dsdlib_id_equals(&header.id, "FS ")) {
if (header.id.Equals("FS ")) {
uint32_t sample_rate;
if (!dsdiff_read_payload(decoder, is, &header,
&sample_rate,
@ -143,7 +143,7 @@ dsdiff_read_prop_snd(Decoder *decoder, InputStream &is,
return false;
metadata->sample_rate = FromBE32(sample_rate);
} else if (dsdlib_id_equals(&header.id, "CHNL")) {
} else if (header.id.Equals("CHNL")) {
uint16_t channels;
if (header.GetSize() < sizeof(channels) ||
!dsdlib_read(decoder, is,
@ -152,15 +152,15 @@ dsdiff_read_prop_snd(Decoder *decoder, InputStream &is,
return false;
metadata->channels = FromBE16(channels);
} else if (dsdlib_id_equals(&header.id, "CMPR")) {
struct dsdlib_id type;
} else if (header.id.Equals("CMPR")) {
DsdId type;
if (header.GetSize() < sizeof(type) ||
!dsdlib_read(decoder, is,
&type, sizeof(type)) ||
!dsdlib_skip_to(decoder, is, chunk_end_offset))
return false;
if (!dsdlib_id_equals(&type, "DSD "))
if (!type.Equals("DSD "))
/* only uncompressed DSD audio data
is implemented */
return false;
@ -186,12 +186,12 @@ dsdiff_read_prop(Decoder *decoder, InputStream &is,
uint64_t prop_size = prop_header->GetSize();
InputStream::offset_type end_offset = is.GetOffset() + prop_size;
struct dsdlib_id prop_id;
DsdId prop_id;
if (prop_size < sizeof(prop_id) ||
!dsdiff_read_id(decoder, is, &prop_id))
return false;
if (dsdlib_id_equals(&prop_id, "SND "))
if (prop_id.Equals("SND "))
return dsdiff_read_prop_snd(decoder, is, metadata, end_offset);
else
/* ignore unknown PROP chunk */
@ -264,23 +264,23 @@ dsdiff_read_metadata_extra(Decoder *decoder, InputStream &is,
uint64_t chunk_size = chunk_header->GetSize();
/* DIIN chunk, is directly followed by other chunks */
if (dsdlib_id_equals(&chunk_header->id, "DIIN"))
if (chunk_header->id.Equals("DIIN"))
chunk_size = 0;
/* DIAR chunk - DSDIFF native tag for Artist */
if (dsdlib_id_equals(&chunk_header->id, "DIAR")) {
if (chunk_header->id.Equals("DIAR")) {
chunk_size = chunk_header->GetSize();
metadata->diar_offset = is.GetOffset();
}
/* DITI chunk - DSDIFF native tag for Title */
if (dsdlib_id_equals(&chunk_header->id, "DITI")) {
if (chunk_header->id.Equals("DITI")) {
chunk_size = chunk_header->GetSize();
metadata->diti_offset = is.GetOffset();
}
#ifdef HAVE_ID3TAG
/* 'ID3 ' chunk, offspec. Used by sacdextract */
if (dsdlib_id_equals(&chunk_header->id, "ID3 ")) {
if (chunk_header->id.Equals("ID3 ")) {
chunk_size = chunk_header->GetSize();
metadata->id3_offset = is.GetOffset();
metadata->id3_size = chunk_size;
@ -331,8 +331,8 @@ dsdiff_read_metadata(Decoder *decoder, InputStream &is,
{
DsdiffHeader header;
if (!dsdlib_read(decoder, is, &header, sizeof(header)) ||
!dsdlib_id_equals(&header.id, "FRM8") ||
!dsdlib_id_equals(&header.format, "DSD "))
!header.id.Equals("FRM8") ||
!header.format.Equals("DSD "))
return false;
while (true) {
@ -340,11 +340,11 @@ dsdiff_read_metadata(Decoder *decoder, InputStream &is,
chunk_header))
return false;
if (dsdlib_id_equals(&chunk_header->id, "PROP")) {
if (chunk_header->id.Equals("PROP")) {
if (!dsdiff_read_prop(decoder, is, metadata,
chunk_header))
return false;
} else if (dsdlib_id_equals(&chunk_header->id, "DSD ")) {
} else if (chunk_header->id.Equals("DSD ")) {
const uint64_t chunk_size = chunk_header->GetSize();
metadata->chunk_size = chunk_size;
return true;
@ -454,7 +454,7 @@ dsdiff_stream_decode(Decoder &decoder, InputStream &is)
while (true) {
chunk_size = chunk_header.GetSize();
if (dsdlib_id_equals(&chunk_header.id, "DSD ")) {
if (chunk_header.id.Equals("DSD ")) {
if (!dsdiff_decode_chunk(decoder, is,
metadata.channels,
chunk_size))

12
src/decoder/DsfDecoderPlugin.cxx
View File

@ -54,7 +54,7 @@ struct DsfMetaData {
struct DsfHeader {
/** DSF header id: "DSD " */
struct dsdlib_id id;
DsdId id;
/** DSD chunk size, including id = 28 */
uint32_t size_low, size_high;
/** total file size */
@ -66,7 +66,7 @@ struct DsfHeader {
/** DSF file fmt chunk */
struct DsfFmtChunk {
/** id: "fmt " */
struct dsdlib_id id;
DsdId id;
/** fmt chunk size, including id, normally 52 */
uint32_t size_low, size_high;
/** version of this format = 1 */
@ -90,7 +90,7 @@ struct DsfFmtChunk {
};
struct DsfDataChunk {
struct dsdlib_id id;
DsdId id;
/** "data" chunk size, includes header (id+size) */
uint32_t size_low, size_high;
};
@ -105,7 +105,7 @@ dsf_read_metadata(Decoder *decoder, InputStream &is,
uint64_t chunk_size;
DsfHeader dsf_header;
if (!dsdlib_read(decoder, is, &dsf_header, sizeof(dsf_header)) ||
!dsdlib_id_equals(&dsf_header.id, "DSD "))
!dsf_header.id.Equals("DSD "))
return false;
chunk_size = (uint64_t(FromLE32(dsf_header.size_high)) << 32) |
@ -123,7 +123,7 @@ dsf_read_metadata(Decoder *decoder, InputStream &is,
/* read the 'fmt ' chunk of the DSF file */
DsfFmtChunk dsf_fmt_chunk;
if (!dsdlib_read(decoder, is, &dsf_fmt_chunk, sizeof(dsf_fmt_chunk)) ||
!dsdlib_id_equals(&dsf_fmt_chunk.id, "fmt "))
!dsf_fmt_chunk.id.Equals("fmt "))
return false;
uint64_t fmt_chunk_size;
@ -152,7 +152,7 @@ dsf_read_metadata(Decoder *decoder, InputStream &is,
/* read the 'data' chunk of the DSF file */
DsfDataChunk data_chunk;
if (!dsdlib_read(decoder, is, &data_chunk, sizeof(data_chunk)) ||
!dsdlib_id_equals(&data_chunk.id, "data"))
!data_chunk.id.Equals("data"))
return false;
/* data size of DSF files are padded to multiple of 4096,