cadb3627fc
librbcodec users must provide these two files when the library is built. rbcodecconfig.h provides configuration #defines and basic types, and will be included by public librbcodec headers, so it must not conflict with the user's code. rbcodecplatform.h provides various OS functions, and will only be included by source files and private headers. This system is intended to provide maximum flexibility for use on embedded systems, where no operating system headers are included. Unix systems can just copy rbcodecconfig-example.h and rbcodecplatform-unix.h with minimal changes. Change-Id: I350a2274d173da391fd1ca00c4202e9760d91def Reviewed-on: http://gerrit.rockbox.org/143 Reviewed-by: Nils Wallménius <nils@rockbox.org> Tested-by: Nils Wallménius <nils@rockbox.org>
65 lines
1.5 KiB
C
65 lines
1.5 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_gbs_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, 112) < 112)
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return false;
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/* Calculate track length with number of subtracks */
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id3->length = buf[4] * 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[16], 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[48], 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[80], 32); *(p + 33) = '\0';
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id3->album = p;
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return true;
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}
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bool get_gbs_metadata(int fd, struct mp3entry* id3)
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{
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char gbs_type[3];
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if ((lseek(fd, 0, SEEK_SET) < 0) ||
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(read(fd, gbs_type, 3) < 3))
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return false;
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id3->vbr = false;
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id3->filesize = filesize(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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/* Check for GBS magic */
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if (memcmp( gbs_type, "GBS", 3 ) != 0)
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return false;
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return parse_gbs_header(fd, id3);
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}
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