mirror of https://github.com/mpv-player/mpv
631 lines
14 KiB
C
631 lines
14 KiB
C
/*
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* codec.conf parser
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* by Szabolcs Berecz <szabi@inf.elte.hu>
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* (C) 2001
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*/
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#define DEBUG
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <ctype.h>
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#include <assert.h>
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#include <string.h>
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#include "libvo/video_out.h"
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#include "codec-cfg.h"
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#ifdef DEBUG
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# define DBG(str, args...) printf(str, ##args)
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#else
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# define DBG(str, args...) do {} while (0)
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#endif
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#define PRINT_LINENUM printf("%s(%d): ", cfgfile, line_num)
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#define MAX_NR_TOKEN 16
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#define MAX_LINE_LEN 1000
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#define RET_EOF -1
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#define RET_EOL -2
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#define TYPE_VIDEO 0
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#define TYPE_AUDIO 1
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static int add_to_fourcc(char *s, char *alias, unsigned int *fourcc,
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unsigned int *map)
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{
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int i, j, freeslots;
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char **aliasp;
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unsigned int tmp;
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/* find first unused slot */
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for (i = 0; i < CODECS_MAX_FOURCC && fourcc[i] != 0xffffffff; i++)
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/* NOTHING */;
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freeslots = CODECS_MAX_FOURCC - i;
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if (!freeslots)
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goto err_out_too_many;
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aliasp = (alias) ? &alias : &s;
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do {
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tmp = *((unsigned int *) s);
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for (j = 0; j < i; j++)
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if (tmp == fourcc[j])
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goto err_out_duplicated;
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fourcc[i] = tmp;
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map[i] = *((unsigned int *) (*aliasp));
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s += 4;
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i++;
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} while ((*(s++) == ',') && --freeslots);
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if (!freeslots)
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goto err_out_too_many;
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if (*(--s) != '\0')
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return 0;
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return 1;
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err_out_duplicated:
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printf("\nduplicated fourcc/format\n");
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return 0;
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err_out_too_many:
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printf("\ntoo many fourcc/format...\n");
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return 0;
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}
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static int add_to_format(char *s, unsigned int *fourcc, unsigned int *fourccmap)
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{
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int i, j;
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/* find first unused slot */
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for (i = 0; i < CODECS_MAX_FOURCC && fourcc[i] != 0xffffffff; i++)
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/* NOTHING */;
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if (i == CODECS_MAX_FOURCC) {
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printf("\ntoo many fourcc/format...\n");
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return 0;
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}
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fourcc[i]=fourccmap[i]=strtoul(s,NULL,0);
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for (j = 0; j < i; j++)
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if (fourcc[j] == fourcc[i]) {
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printf("\nduplicated fourcc/format\n");
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return 0;
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}
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return 1;
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}
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static int add_to_out(char *sfmt, char *sflags, unsigned int *outfmt,
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unsigned char *outflags)
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{
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static char *fmtstr[] = {
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"YUY2",
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"YV12",
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"RGB8",
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"RGB15",
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"RGB16",
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"RGB24",
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"RGB32",
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"BGR8",
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"BGR15",
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"BGR16",
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"BGR24",
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"BGR32",
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NULL
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};
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static unsigned int fmtnum[] = {
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IMGFMT_YUY2,
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IMGFMT_YV12,
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IMGFMT_RGB|8,
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IMGFMT_RGB|15,
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IMGFMT_RGB|16,
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IMGFMT_RGB|24,
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IMGFMT_RGB|32,
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IMGFMT_BGR|8,
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IMGFMT_BGR|15,
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IMGFMT_BGR|16,
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IMGFMT_BGR|24,
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IMGFMT_BGR|32
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};
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static char *flagstr[] = {
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"flip",
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"noflip",
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"yuvhack",
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NULL
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};
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int i, j, freeslots;
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unsigned char flags;
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for (i = 0; i < CODECS_MAX_OUTFMT && outfmt[i] != 0xffffffff; i++)
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/* NOTHING */;
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freeslots = CODECS_MAX_OUTFMT - i;
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if (!freeslots)
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goto err_out_too_many;
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flags = 0;
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if(sflags) do {
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for (j = 0; flagstr[j] != NULL; j++)
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if (!strncmp(sflags, flagstr[j], strlen(flagstr[j])))
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break;
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if (flagstr[j] == NULL) return 0; // error!
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flags|=(1<<j);
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sflags+=strlen(flagstr[j]);
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} while (*(sflags++) == ',');
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do {
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for (j = 0; fmtstr[j] != NULL; j++)
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if (!strncmp(sfmt, fmtstr[j], strlen(fmtstr[j])))
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break;
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if (fmtstr[j] == NULL)
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return 0;
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outfmt[i] = fmtnum[j];
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outflags[i] = flags;
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++i;
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sfmt+=strlen(fmtstr[j]);
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} while ((*(sfmt++) == ',') && --freeslots);
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if (!freeslots)
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goto err_out_too_many;
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if (*(--sfmt) != '\0') return 0;
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return 1;
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err_out_too_many:
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printf("\ntoo many out...\n");
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return 0;
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}
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static short get_driver(char *s,int audioflag)
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{
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static char *audiodrv[] = {
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"mp3lib",
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"pcm",
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"libac3",
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"acm",
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"alaw",
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"msgsm",
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"dshow",
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NULL
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};
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static char *videodrv[] = {
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"libmpeg2",
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"vfw",
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"odivx",
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"dshow",
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NULL
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};
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char **drv=audioflag?audiodrv:videodrv;
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int i;
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for(i=0;drv[i];i++) if(!strcmp(s,drv[i])) return i+1;
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return 0;
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}
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static int validate_codec(codecs_t *c, int type)
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{
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#if 0
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int i;
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for (i = 0; i < strlen(c->name) && isalnum(c->name[i]); i++)
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/* NOTHING */;
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if (i < strlen(c->name)) {
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printf("\ncodec(%s)->name is not valid!\n", c->name);
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return 0;
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}
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#warning codec->info = codec->name; ez ok, vagy strdup()?
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if (!c->info)
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c->info = c->name;
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if (c->fourcc[0] == 0xffffffff) {
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printf("\ncodec(%s) does not have fourcc/format!\n", c->name);
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return 0;
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}
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if (!c->driver) {
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printf("\ncodec(%s) does not have a driver!\n", c->name);
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return 0;
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}
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#warning codec->driver == 4;... <- ezt nem kellene belehegeszteni...
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#warning HOL VANNAK DEFINIALVA????????????
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if (!c->dll && (c->driver == 4 ||
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(c->driver == 2 && type == TYPE_VIDEO))) {
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printf("\ncodec(%s) needs a 'dll'!\n", c->name);
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return 0;
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}
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#warning guid.f1 lehet 0? honnan lehet tudni, hogy nem adtak meg?
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// if (!(codec->flags & CODECS_FLAG_AUDIO) && codec->driver == 4)
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if (type == TYPE_VIDEO)
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if (c->outfmt[0] == 0xffffffff) {
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printf("\ncodec(%s) needs an 'outfmt'!\n", c->name);
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return 0;
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}
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#endif
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return 1;
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}
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static int add_comment(char *s, char **d)
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{
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int pos;
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if (!*d)
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pos = 0;
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else {
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pos = strlen(*d);
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(*d)[pos++] = '\n';
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}
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if (!(*d = (char *) realloc(*d, pos + strlen(s) + 1))) {
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printf("can't allocate mem for comment\n");
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return 0;
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}
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strcpy(*d + pos, s);
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return 1;
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}
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static FILE *fp;
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static int line_num = 0;
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static char *line;
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static char *token[MAX_NR_TOKEN];
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static int get_token(int min, int max)
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{
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static int read_nextline = 1;
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static int line_pos;
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int i;
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char c;
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if (max >= MAX_NR_TOKEN) {
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printf("\nget_token(): max >= MAX_NR_TOKEN!\n");
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goto out_eof;
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}
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memset(token, 0x00, sizeof(*token) * max);
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if (read_nextline) {
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if (!fgets(line, MAX_LINE_LEN, fp))
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goto out_eof;
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line_pos = 0;
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++line_num;
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read_nextline = 0;
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}
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for (i = 0; i < max; i++) {
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while (isspace(line[line_pos]))
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++line_pos;
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if (line[line_pos] == '\0' || line[line_pos] == '#' ||
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line[line_pos] == ';') {
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read_nextline = 1;
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if (i >= min)
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goto out_ok;
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goto out_eol;
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}
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token[i] = line + line_pos;
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c = line[line_pos];
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if (c == '"' || c == '\'') {
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token[i]++;
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while (line[++line_pos] != c && line[line_pos])
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/* NOTHING */;
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} else {
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for (/* NOTHING */; !isspace(line[line_pos]) &&
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line[line_pos]; line_pos++)
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/* NOTHING */;
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}
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if (!line[line_pos]) {
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read_nextline = 1;
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if (i >= min - 1)
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goto out_ok;
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goto out_eol;
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}
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line[line_pos] = '\0';
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line_pos++;
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}
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out_ok:
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return i;
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out_eof:
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return RET_EOF;
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out_eol:
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return RET_EOL;
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}
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static codecs_t *video_codecs=NULL;
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static codecs_t *audio_codecs=NULL;
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static int nr_vcodecs = 0;
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static int nr_acodecs = 0;
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codecs_t **parse_codec_cfg(char *cfgfile)
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{
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codecs_t *codec = NULL; // current codec
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codecs_t **codecsp = NULL;// points to audio_codecs or to video_codecs
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static codecs_t *ret_codecs[2] = {NULL,NULL};
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int *nr_codecsp;
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int codec_type; /* TYPE_VIDEO/TYPE_AUDIO */
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int tmp, i;
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#ifdef DEBUG
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assert(cfgfile != NULL);
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#endif
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printf("Reading codec config file: %s\n", cfgfile);
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if ((fp = fopen(cfgfile, "r")) == NULL) {
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printf("can't open '%s': %s\n", cfgfile, strerror(errno));
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return NULL;
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}
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if ((line = (char *) malloc(MAX_LINE_LEN + 1)) == NULL) {
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perror("can't get memory for 'line'");
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return NULL;
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}
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/*
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* check if the cfgfile starts with 'audiocodec' or
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* with 'videocodec'
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*/
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while ((tmp = get_token(1, 1)) == RET_EOL)
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/* NOTHING */;
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if (tmp != RET_EOF && (!strcmp(token[0], "audiocodec") ||
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!strcmp(token[0], "videocodec")))
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goto loop_enter;
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goto out;
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while ((tmp = get_token(1, 1)) != RET_EOF) {
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if (tmp == RET_EOL)
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continue;
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if (!strcmp(token[0], "audiocodec") ||
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!strcmp(token[0], "videocodec")) {
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if (!validate_codec(codec, codec_type))
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goto err_out_not_valid;
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loop_enter:
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if (*token[0] == 'v') {
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codec_type = TYPE_VIDEO;
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nr_codecsp = &nr_vcodecs;
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codecsp = &video_codecs;
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} else if (*token[0] == 'a') {
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codec_type = TYPE_AUDIO;
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nr_codecsp = &nr_acodecs;
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codecsp = &audio_codecs;
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} else {
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printf("rohattkurva\n");
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goto err_out;
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}
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if (!(*codecsp = (codecs_t *) realloc(*codecsp,
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sizeof(codecs_t) * (*nr_codecsp + 2)))) {
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perror("can't realloc '*codecsp'");
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goto err_out;
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}
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codec=*codecsp + *nr_codecsp;
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++*nr_codecsp;
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memset(codec,0,sizeof(codecs_t));
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memset(codec->fourcc, 0xff, sizeof(codec->fourcc));
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memset(codec->outfmt, 0xff, sizeof(codec->outfmt));
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if (get_token(1, 1) < 0)
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goto err_out_parse_error;
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for (i = 0; i < *nr_codecsp - 1; i++) {
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if (!strcmp(token[0], (*codecsp)[i].name)) {
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PRINT_LINENUM;
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printf("codec name '%s' isn't unique\n", token[0]);
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goto err_out;
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}
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}
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if (!(codec->name = strdup(token[0]))) {
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perror("can't strdup -> 'name'");
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goto err_out;
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}
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} else if (!strcmp(token[0], "info")) {
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if (codec->info || get_token(1, 1) < 0)
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goto err_out_parse_error;
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if (!(codec->info = strdup(token[0]))) {
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perror("can't strdup -> 'info'");
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goto err_out;
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}
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} else if (!strcmp(token[0], "comment")) {
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if (get_token(1, 1) < 0)
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goto err_out_parse_error;
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if (!add_comment(token[0], &codec->comment)) {
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PRINT_LINENUM;
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printf("add_comment()-tel valami sux\n");
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}
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} else if (!strcmp(token[0], "fourcc")) {
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if (get_token(1, 2) < 0)
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goto err_out_parse_error;
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if (!add_to_fourcc(token[0], token[1],
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codec->fourcc,
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codec->fourccmap))
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goto err_out_parse_error;
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} else if (!strcmp(token[0], "format")) {
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if (get_token(1, 1) < 0)
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goto err_out_parse_error;
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if (!add_to_format(token[0], codec->fourcc,codec->fourccmap))
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goto err_out_parse_error;
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} else if (!strcmp(token[0], "driver")) {
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if (get_token(1, 1) < 0)
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goto err_out_parse_error;
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if ((codec->driver = get_driver(token[0],codec_type)) == -1)
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goto err_out;
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} else if (!strcmp(token[0], "dll")) {
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if (get_token(1, 1) < 0)
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goto err_out_parse_error;
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if (!(codec->dll = strdup(token[0]))) {
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perror("can't strdup -> 'dll'");
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goto err_out;
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}
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} else if (!strcmp(token[0], "guid")) {
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if (get_token(11, 11) < 0)
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goto err_out_parse_error;
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#warning GUID-nak szammal kell kezdodni!!!!!!!! ez igy ok?
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for (i = 0; i < 11; i++)
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if (!isdigit(*token[i]))
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goto err_out_parse_error;
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codec->guid.f1=strtoul(token[0],NULL,0);
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codec->guid.f2=strtoul(token[1],NULL,0);
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codec->guid.f3=strtoul(token[2],NULL,0);
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for (i = 0; i < 8; i++) {
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codec->guid.f4[i]=strtoul(token[i + 3],NULL,0);
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}
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} else if (!strcmp(token[0], "out")) {
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if (get_token(1, 2) < 0)
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goto err_out_parse_error;
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if (!add_to_out(token[0], token[1], codec->outfmt,
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codec->outflags))
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goto err_out;
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} else if (!strcmp(token[0], "flags")) {
|
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if (get_token(1, 1) < 0)
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goto err_out_parse_error;
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if (!strcmp(token[0], "seekable"))
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codec->flags |= CODECS_FLAG_SEEKABLE;
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else
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goto err_out_parse_error;
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} else if (!strcmp(token[0], "status")) {
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if (get_token(1, 1) < 0)
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goto err_out_parse_error;
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if (!strcasecmp(token[0], "working"))
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codec->status = CODECS_STATUS_WORKING;
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else if (!strcasecmp(token[0], "crashing"))
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codec->status = CODECS_STATUS_NOT_WORKING;
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else if (!strcasecmp(token[0], "untested"))
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codec->status = CODECS_STATUS_UNTESTED;
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else if (!strcasecmp(token[0], "buggy"))
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codec->status = CODECS_STATUS_PROBLEMS;
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else
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goto err_out_parse_error;
|
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} else
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goto err_out_parse_error;
|
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}
|
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if (!validate_codec(codec, codec_type))
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goto err_out_not_valid;
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video_codecs[nr_vcodecs].name = NULL;
|
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audio_codecs[nr_acodecs].name = NULL;
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ret_codecs[0] = video_codecs;
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ret_codecs[1] = audio_codecs;
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out:
|
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free(line);
|
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fclose(fp);
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return ret_codecs;
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err_out_parse_error:
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PRINT_LINENUM;
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printf("parse error\n");
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err_out:
|
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printf("\nOops\n");
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if (audio_codecs)
|
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free(audio_codecs);
|
|
if (video_codecs)
|
|
free(video_codecs);
|
|
free(line);
|
|
free(fp);
|
|
return NULL;
|
|
err_out_not_valid:
|
|
PRINT_LINENUM;
|
|
printf("codec is not definied correctly\n");
|
|
goto err_out;
|
|
}
|
|
|
|
codecs_t *find_audio_codec(unsigned int fourcc, unsigned int *fourccmap,
|
|
codecs_t *start)
|
|
{
|
|
return find_codec(fourcc, fourccmap, start, 1);
|
|
}
|
|
|
|
codecs_t *find_video_codec(unsigned int fourcc, unsigned int *fourccmap,
|
|
codecs_t *start)
|
|
{
|
|
return find_codec(fourcc, fourccmap, start, 0);
|
|
}
|
|
|
|
codecs_t* find_codec(unsigned int fourcc,unsigned int *fourccmap,
|
|
codecs_t *start, int audioflag)
|
|
{
|
|
int i, j;
|
|
codecs_t *c;
|
|
|
|
if (start) {
|
|
for (/* NOTHING */; start->name; start++) {
|
|
for (j = 0; j < CODECS_MAX_FOURCC; j++) {
|
|
if (start->fourcc[j] == fourcc) {
|
|
if (fourccmap)
|
|
*fourccmap = start->fourccmap[j];
|
|
return start;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if (audioflag) {
|
|
i = nr_acodecs;
|
|
c = audio_codecs;
|
|
} else {
|
|
i = nr_vcodecs;
|
|
c = video_codecs;
|
|
}
|
|
for (/* NOTHING */; i--; c++) {
|
|
for (j = 0; j < CODECS_MAX_FOURCC; j++) {
|
|
if (c->fourcc[j] == fourcc) {
|
|
if (fourccmap)
|
|
*fourccmap = c->fourccmap[j];
|
|
return c;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef TESTING
|
|
int main(void)
|
|
{
|
|
codecs_t **codecs, *c;
|
|
int i,j, nr_codecs, state;
|
|
|
|
if (!(codecs = parse_codec_cfg("DOCS/codecs.conf")))
|
|
return 0;
|
|
if (!codecs[0])
|
|
printf("no videoconfig.\n");
|
|
if (!codecs[1])
|
|
printf("no audioconfig.\n");
|
|
|
|
printf("videocodecs:\n");
|
|
c = codecs[0];
|
|
nr_codecs = nr_vcodecs;
|
|
state = 0;
|
|
next:
|
|
if (c) {
|
|
printf("number of codecs: %d\n", nr_codecs);
|
|
for(i=0;i<nr_codecs;i++, c++){
|
|
printf("\n============== codec %02d ===============\n",i);
|
|
printf("name='%s'\n",c->name);
|
|
printf("info='%s'\n",c->info);
|
|
printf("comment='%s'\n",c->comment);
|
|
printf("dll='%s'\n",c->dll);
|
|
printf("flags=%X driver=%d\n",c->flags,c->driver);
|
|
|
|
for(j=0;j<CODECS_MAX_FOURCC;j++){
|
|
if(c->fourcc[j]!=0xFFFFFFFF){
|
|
printf("fourcc %02d: %08X (%.4s) ===> %08X (%.4s)\n",j,c->fourcc[j],&c->fourcc[j],c->fourccmap[j],&c->fourccmap[j]);
|
|
}
|
|
}
|
|
|
|
for(j=0;j<CODECS_MAX_OUTFMT;j++){
|
|
if(c->outfmt[j]!=0xFFFFFFFF){
|
|
printf("outfmt %02d: %08X (%.4s) flags: %d\n",j,c->outfmt[j],&c->outfmt[j],c->outflags[j]);
|
|
}
|
|
}
|
|
|
|
printf("GUID: %08lX %04X %04X",c->guid.f1,c->guid.f2,c->guid.f3);
|
|
for(j=0;j<8;j++) printf(" %02X",c->guid.f4[j]);
|
|
printf("\n");
|
|
|
|
|
|
}
|
|
}
|
|
if (!state) {
|
|
printf("audiocodecs:\n");
|
|
c = codecs[1];
|
|
nr_codecs = nr_acodecs;
|
|
state = 1;
|
|
goto next;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#endif
|