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3a57f2f721
Most of the churn here occurs because 'filesize' is one of the redefined filesystem functions, but some of the structs used by the native FS code also include a 'filesize' member variable which gets renamed by the macro in some but not all source files. It's easier to rename 'filesize()' to 'ffilesize()' rather than try to clean up the macro mess or renaming the struct members. There is weirdness with root_realpath() which now breaks on native builds because it was assumed to be unprefixed there. dir_get_info() was unprefixed everywhere but this just seems inconsistent; make it follow the FS_PREFIX() convention too. Change-Id: Ic3700c6234ea45f32679c1a8429d70fdb8f4088a
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <inttypes.h>
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#include "platform.h"
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#include "metadata.h"
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#include "metadata_common.h"
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#include "metadata_parsers.h"
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#include "rbunicode.h"
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static bool parse_sgc_header(int fd, struct mp3entry* id3)
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{
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/* Use the trackname part of the id3 structure as a temporary buffer */
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unsigned char* buf = (unsigned char *)id3->path;
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lseek(fd, 0, SEEK_SET);
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if (read(fd, buf, 0xA0) < 0xA0)
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return false;
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/* calculate track length with number of tracks */
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id3->length = buf[37] * 1000;
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/* If meta info was found in the m3u skip next step */
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if (id3->title && id3->title[0]) return true;
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char *p = id3->id3v2buf;
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/* Some metadata entries have 32 bytes length */
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/* Game */
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memcpy(p, &buf[64], 32); *(p + 33) = '\0';
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id3->title = p;
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p += strlen(p)+1;
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/* Artist */
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memcpy(p, &buf[96], 32); *(p + 33) = '\0';
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id3->artist = p;
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p += strlen(p)+1;
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/* Copyright */
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memcpy(p, &buf[128], 32); *(p + 33) = '\0';
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id3->album = p;
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p += strlen(p)+1;
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return true;
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}
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bool get_sgc_metadata(int fd, struct mp3entry* id3)
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{
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uint32_t sgc_type;
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if ((lseek(fd, 0, SEEK_SET) < 0) ||
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read_uint32be(fd, &sgc_type) != (int)sizeof(sgc_type))
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return false;
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id3->vbr = false;
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id3->filesize = ffilesize(fd);
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/* we only render 16 bits, 44.1KHz, Stereo */
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id3->bitrate = 706;
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id3->frequency = 44100;
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/* Make sure this is an SGC file */
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if (sgc_type != FOURCC('S','G','C',0x1A))
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return false;
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return parse_sgc_header(fd, id3);
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}
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