mirror of https://github.com/mpv-player/mpv
527 lines
12 KiB
C
527 lines
12 KiB
C
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//#define DEBUG
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#define PRINT_LINENUM
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// printf("%s(%d): ", cfgfile, line_num)
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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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#define MALLOC_ADD 10
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#define MAX_LINE_LEN 1000
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#define STATE_MASK ((1<<7)-1)
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#define GOT_NAME (1<<0)
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#define GOT_INFO (1<<1)
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#define GOT_FOURCC (1<<2)
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#define GOT_FORMAT (1<<3)
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#define GOT_DRIVER (1<<4)
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#define GOT_DLL (1<<5)
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#define GOT_OUT (1<<6)
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#define RET_EOF -1
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#define RET_EOL -2
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#define RET_OK 0
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static FILE *fp;
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static int line_num = 0;
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static int line_pos; /* line pos */
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static int firstdef = 1;
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static char *line;
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static char *token;
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static codecs_t *codecs=NULL;
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static int nr_codecs = 0;
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static int get_token(void)
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{
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static int read_nextline = 1;
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if (read_nextline) {
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if (!fgets(line, MAX_LINE_LEN, fp))
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goto ret_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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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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goto ret_eol;
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}
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token = line + line_pos;
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if (line[line_pos] == '"') {
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token++;
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for (/* NOTHING */; line[++line_pos] != '"' && line[line_pos];)
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/* NOTHING */;
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if (!line[line_pos]) {
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read_nextline = 1;
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goto ret_eol;
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}
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} else {
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for (/* NOTHING */; !isspace(line[line_pos]); line_pos++)
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/* NOTHING */;
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}
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line[line_pos] = '\0';
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line_pos++;
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#ifdef DEBUG
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printf("get_token ok\n");
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#endif
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return RET_OK;
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ret_eof:
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#ifdef DEBUG
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printf("get_token EOF\n");
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#endif
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token = NULL;
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return RET_EOF;
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ret_eol:
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#ifdef DEBUG
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printf("get_token EOL\n");
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#endif
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token = NULL;
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return RET_EOL;
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}
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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;
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char **aliasp;
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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("too many fourcc...\n");
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return 0;
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}
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#if 1
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if (alias) {
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do {
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fourcc[i] = *((unsigned int *) s);
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map[i] = *((unsigned int *) alias);
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s += 4;
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i++;
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} while (*(s++) == ',');
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} else {
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do {
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fourcc[i] = *((unsigned int *) s);
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map[i] = *((unsigned int *) s);
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s += 4;
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i++;
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} while (*(s++) == ',');
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}
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#else
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if (alias)
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aliasp = &alias;
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else
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aliasp = &s;
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do {
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fourcc[i] = *((unsigned int *) s);
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map[i++] = *((unsigned int *) (*aliasp));
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s += 4;
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} while (*(s++) == ',');
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#endif
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if (*(--s) != '\0')
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return 0;
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return 1;
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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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// printf("\n-----[%s][%s]-----\n",s,format);
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int i;
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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("too many fourcc...\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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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;
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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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if (i == CODECS_MAX_FOURCC) {
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printf("too many out...\n");
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return 0;
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}
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flags = 0; //get_flags(sflags);
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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++) == ',');
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if (*(--sfmt) != '\0') return 0;
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return 1;
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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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codecs_t *parse_codec_cfg(char *cfgfile)
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{
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// codecs_t *codecs = NULL; // array of codecs
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codecs_t *codec = NULL; // currect codec
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int free_slots = 0;
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int tmp, i;
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int state = 0;
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char *param1;
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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("parse_codec_cfg: 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("parse_codec_cfg: can't get memory for 'line'");
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return NULL;
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}
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line_pos = 0;
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line[0] = '\0'; /* forces get_token to read next line */
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for (;;) {
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tmp = get_token();
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if (tmp == RET_EOF)
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goto eof_out;
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if (tmp == RET_EOL)
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continue;
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if (!strcmp(token, "audiocodec") || !strcmp(token, "videocodec")) {
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PRINT_LINENUM;
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if (!(codecs = (codecs_t *) realloc(codecs,
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sizeof(codecs_t) * (nr_codecs + 1)))) {
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perror("parse_codec_cfg: can't realloc 'codecs'");
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goto err_out;
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}
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codec=&codecs[nr_codecs];
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nr_codecs++;
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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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state = 0;
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if (*token == 'a') { /* audiocodec */
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//printf("audio");
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codec->flags |= CODECS_FLAG_AUDIO;
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} else if (*token == 'v') { /* videocodec */
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//printf("video");
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codec->flags &= !CODECS_FLAG_AUDIO;
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} else {
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printf("itt valami nagyon el van baszva\n");
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goto err_out;
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}
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if (get_token() < 0)
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goto parse_error_out;
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codec->name = strdup(token);
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state |= GOT_NAME;
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//printf(" %s\n", codec->name);
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} else if (!strcmp(token, "info")) {
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if (!(state & GOT_NAME))
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goto parse_error_out;
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PRINT_LINENUM;
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//printf("info");
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if (state & GOT_INFO || get_token() < 0)
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goto parse_error_out;
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codec->info = strdup(token);
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state |= GOT_INFO;
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//printf(" %s\n", codec->info);
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} else if (!strcmp(token, "comment")) {
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if (!(state & GOT_NAME))
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goto parse_error_out;
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PRINT_LINENUM;
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//printf("comment");
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if (get_token() < 0)
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goto parse_error_out;
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#if 1
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if (!codec->comment)
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codec->comment = strdup(token);
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//printf(" %s\n", codec->comment);
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#else
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add_comment(token, &codec->comment);
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printf(" FIXMEEEEEEEEEEEEEEE\n");
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#endif
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} else if (!strcmp(token, "fourcc")) {
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if (!(state & GOT_NAME))
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goto parse_error_out;
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PRINT_LINENUM;
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//printf("fourcc");
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// if (codec->flags & CODECS_FLAG_AUDIO) {
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// printf("\n'fourcc' in audiocodec definition!\n");
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// goto err_out;
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// }
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if (get_token() < 0)
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goto parse_error_out;
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param1 = strdup(token);
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get_token();
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if (!add_to_fourcc(param1, token,
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codec->fourcc,
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codec->fourccmap))
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goto err_out;
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state |= GOT_FOURCC;
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//printf(" %s: %s\n", param1, token);
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free(param1);
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} else if (!strcmp(token, "format")) {
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if (!(state & GOT_NAME))
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goto parse_error_out;
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PRINT_LINENUM;
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//printf("format");
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// if (!(codec->flags & CODECS_FLAG_AUDIO)) {
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// printf("\n'format' in videocodec definition!\n");
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// goto err_out;
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// }
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if (get_token() < 0)
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goto parse_error_out;
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if (!add_to_format(token, codec->fourcc,codec->fourccmap))
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goto err_out;
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state |= GOT_FORMAT;
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//printf(" %s\n", token);
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} else if (!strcmp(token, "driver")) {
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if (!(state & GOT_NAME))
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goto parse_error_out;
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PRINT_LINENUM;
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//printf("driver");
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if (get_token() < 0)
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goto parse_error_out;
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if ((codec->driver = get_driver(token,codec->flags&CODECS_FLAG_AUDIO)) == -1)
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goto err_out;
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//printf(" %s\n", token);
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} else if (!strcmp(token, "dll")) {
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if (!(state & GOT_NAME))
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goto parse_error_out;
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PRINT_LINENUM;
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//printf("dll");
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if (get_token() < 0)
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goto parse_error_out;
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codec->dll = strdup(token);
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//printf(" %s\n", codec->dll);
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} else if (!strcmp(token, "guid")) {
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if (!(state & GOT_NAME))
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goto parse_error_out;
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PRINT_LINENUM;
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//printf("guid");
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if (get_token() < 0) goto parse_error_out;
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//printf("'%s'",token);
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codec->guid.f1=strtoul(token,NULL,0);
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if (get_token() < 0) goto parse_error_out;
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codec->guid.f2=strtoul(token,NULL,0);
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if (get_token() < 0) goto parse_error_out;
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codec->guid.f3=strtoul(token,NULL,0);
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for (i = 0; i < 8; i++) {
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if (get_token() < 0) goto parse_error_out;
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codec->guid.f4[i]=strtoul(token,NULL,0);
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}
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} else if (!strcmp(token, "out")) {
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if (!(state & GOT_NAME))
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goto parse_error_out;
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PRINT_LINENUM;
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//printf("out");
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if (get_token() < 0)
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goto parse_error_out;
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param1 = strdup(token);
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get_token();
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if (!add_to_out(param1, token, codec->outfmt,
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codec->outflags))
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goto err_out;
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//printf(" %s: %s\n", param1, token);
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free(param1);
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} else if (!strcmp(token, "flags")) {
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if (!(state & GOT_NAME))
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goto parse_error_out;
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PRINT_LINENUM;
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//printf("flags");
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if (get_token() < 0)
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goto parse_error_out;
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//printf(" %s\n", token);
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} else
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goto parse_error_out;
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}
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out:
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free(line);
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fclose(fp);
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return codecs;
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parse_error_out:
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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 (codecs)
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free(codecs);
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codecs = NULL;
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goto out;
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eof_out:
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/* FIXME teljes az utolso config?? */
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goto out;
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}
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codecs_t* find_codec(unsigned int fourcc,unsigned int *fourccmap,int audioflag){
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int i,j;
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for(i=0;i<nr_codecs;i++){
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codecs_t *c=&codecs[i];
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if(!audioflag && (c->flags&CODECS_FLAG_AUDIO)) continue;
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if(audioflag && !(c->flags&CODECS_FLAG_AUDIO)) continue;
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for(j=0;j<CODECS_MAX_FOURCC;j++){
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if(c->fourcc[j]==fourcc){
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if(fourccmap) *fourccmap=c->fourccmap[j];
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return c;
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}
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}
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}
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return NULL;
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}
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#ifdef TESTING
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int main(void)
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{
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codecs_t *codecs;
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int i,j;
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codecs = parse_codec_cfg("DOCS/codecs.conf");
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printf("total %d codecs parsed\n",nr_codecs);
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for(i=0;i<nr_codecs;i++){
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codecs_t *c=&codecs[i];
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printf("\n============== codec %02d ===============\n",i);
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printf("name='%s'\n",c->name);
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printf("info='%s'\n",c->info);
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printf("comment='%s'\n",c->comment);
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printf("dll='%s'\n",c->dll);
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printf("flags=%X driver=%d\n",c->flags,c->driver);
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for(j=0;j<CODECS_MAX_FOURCC;j++){
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if(c->fourcc[j]!=0xFFFFFFFF){
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printf("fourcc %02d: %08X (%.4s) ===> %08X (%.4s)\n",j,c->fourcc[j],&c->fourcc[j],c->fourccmap[j],&c->fourccmap[j]);
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}
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}
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for(j=0;j<CODECS_MAX_OUTFMT;j++){
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if(c->outfmt[j]!=0xFFFFFFFF){
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printf("outfmt %02d: %08X (%.4s) flags: %d\n",j,c->outfmt[j],&c->outfmt[j],c->outflags[j]);
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}
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}
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printf("GUID: %08X %04X %04X",c->guid.f1,c->guid.f2,c->guid.f3);
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for(j=0;j<8;j++) printf(" %02X",c->guid.f4[j]);
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printf("\n");
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}
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return 0;
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}
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#endif
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