diff options
Diffstat (limited to 'core/codec-cfg.c')
-rw-r--r-- | core/codec-cfg.c | 692 |
1 files changed, 692 insertions, 0 deletions
diff --git a/core/codec-cfg.c b/core/codec-cfg.c new file mode 100644 index 0000000000..da4c64c4c0 --- /dev/null +++ b/core/codec-cfg.c @@ -0,0 +1,692 @@ +/* + * codecs.conf parser + * + * Copyright (C) 2001 Szabolcs Berecz <szabi@inf.elte.hu> + * + * This file is part of MPlayer. + * + * MPlayer is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * MPlayer is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with MPlayer; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> +#include <ctype.h> +#include <assert.h> +#include <string.h> +#include <stdint.h> + +#include "config.h" +#include "mp_msg.h" +#include "libmpcodecs/img_format.h" +#include "codec-cfg.h" +#include "bstr.h" +#include "stream/stream.h" +#include "path.h" + +static const char embedded_file[] = +#include "codecs.conf.h" + ; +static const struct bstr builtin_codecs_conf = { + .start = (char *)embedded_file, .len = sizeof(embedded_file) - 1 +}; + +#define mmioFOURCC( ch0, ch1, ch2, ch3 ) \ + ( (uint32_t)(uint8_t)(ch0) | ( (uint32_t)(uint8_t)(ch1) << 8 ) | \ + ( (uint32_t)(uint8_t)(ch2) << 16 ) | ( (uint32_t)(uint8_t)(ch3) << 24 ) ) + +#define PRINT_LINENUM mp_msg(MSGT_CODECCFG,MSGL_ERR," at line %d\n", line_num) + +#define MAX_NR_TOKEN 16 + +#define RET_EOF -1 +#define RET_EOL -2 + +#define TYPE_VIDEO 0 +#define TYPE_AUDIO 1 + +static int codecs_conf_release; +char * codecs_file = NULL; + +static int add_to_fourcc(char *s, char *alias, unsigned int *fourcc, + unsigned int *map) +{ + int i, j, freeslots; + unsigned int tmp; + + /* find first unused slot */ + for (i = 0; i < CODECS_MAX_FOURCC && fourcc[i] != 0xffffffff; i++) + /* NOTHING */; + freeslots = CODECS_MAX_FOURCC - i; + if (!freeslots) + goto err_out_too_many; + + do { + if (strlen(s) < 4) + goto err_out_parse_error; + tmp = mmioFOURCC(s[0], s[1], s[2], s[3]); + for (j = 0; j < i; j++) + if (tmp == fourcc[j]) + goto err_out_duplicated; + fourcc[i] = tmp; + map[i] = alias ? mmioFOURCC(alias[0], alias[1], alias[2], alias[3]) : tmp; + s += 4; + i++; + } while ((*(s++) == ',') && --freeslots); + + if (!freeslots) + goto err_out_too_many; + if (*(--s) != '\0') + goto err_out_parse_error; + return 1; +err_out_duplicated: + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"duplicated FourCC"); + return 0; +err_out_too_many: + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"too many FourCCs/formats..."); + return 0; +err_out_parse_error: + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"parse error"); + return 0; +} + +static int add_to_format(char *s, char *alias,unsigned int *fourcc, unsigned int *fourccmap) +{ + int i, j; + char *endptr; + + /* find first unused slot */ + for (i = 0; i < CODECS_MAX_FOURCC && fourcc[i] != 0xffffffff; i++) + /* NOTHING */; + if (i == CODECS_MAX_FOURCC) { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"too many FourCCs/formats..."); + return 0; + } + + fourcc[i]=strtoul(s,&endptr,0); + if (*endptr != '\0') { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"parse error (format ID not a number?)"); + return 0; + } + + if(alias){ + fourccmap[i]=strtoul(alias,&endptr,0); + if (*endptr != '\0') { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"parse error (format ID alias not a number?)"); + return 0; + } + } else + fourccmap[i]=fourcc[i]; + + for (j = 0; j < i; j++) + if (fourcc[j] == fourcc[i]) { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"duplicated format ID"); + return 0; + } + + return 1; +} + +static int add_to_inout(char *sfmt, char *sflags, unsigned int *outfmt, + unsigned char *outflags) +{ + + static char *flagstr[] = { + "flip", + "noflip", + "yuvhack", + "query", + "static", + NULL + }; + + int i, j, freeslots; + unsigned char flags; + + for (i = 0; i < CODECS_MAX_OUTFMT && outfmt[i] != 0xffffffff; i++) + /* NOTHING */; + freeslots = CODECS_MAX_OUTFMT - i; + if (!freeslots) + goto err_out_too_many; + + flags = 0; + if(sflags) { + do { + for (j = 0; flagstr[j] != NULL; j++) + if (!strncmp(sflags, flagstr[j], + strlen(flagstr[j]))) + break; + if (flagstr[j] == NULL) + goto err_out_parse_error; + flags|=(1<<j); + sflags+=strlen(flagstr[j]); + } while (*(sflags++) == ','); + + if (*(--sflags) != '\0') + goto err_out_parse_error; + } + + do { + for (j = 0; isalnum(sfmt[j]) || sfmt[j] == '_'; j++); + unsigned int fmt = mp_imgfmt_from_name((bstr) {sfmt, j}, true); + if (!fmt) + goto err_out_parse_error; + outfmt[i] = fmt; + outflags[i] = flags; + ++i; + sfmt += j; + } while ((*(sfmt++) == ',') && --freeslots); + + if (!freeslots) + goto err_out_too_many; + + if (*(--sfmt) != '\0') + goto err_out_parse_error; + + return 1; +err_out_too_many: + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"too many out..."); + return 0; +err_out_parse_error: + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"parse error"); + return 0; +} + +static int validate_codec(codecs_t *c, int type) +{ + unsigned int i; + char *tmp_name = c->name; + + for (i = 0; i < strlen(tmp_name) && isalnum(tmp_name[i]); i++) + /* NOTHING */; + + if (i < strlen(tmp_name)) { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"\ncodec(%s) name is not valid!\n", c->name); + return 0; + } + + if (!c->info) + c->info = strdup(c->name); + + if (!c->drv) { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"\ncodec(%s) does not have a driver!\n", c->name); + return 0; + } + + return 1; +} + +static int add_comment(char *s, char **d) +{ + int pos; + + if (!*d) + pos = 0; + else { + pos = strlen(*d); + (*d)[pos++] = '\n'; + } + if (!(*d = realloc(*d, pos + strlen(s) + 1))) { + mp_tmsg(MSGT_CODECCFG,MSGL_FATAL,"Can't allocate memory for comment. "); + return 0; + } + strcpy(*d + pos, s); + return 1; +} + +static struct bstr filetext; +static int line_num = 0; +static char *line; +static char *token[MAX_NR_TOKEN]; +static int read_nextline = 1; + +static int get_token(int min, int max) +{ + static int line_pos; + int i; + char c; + + if (max >= MAX_NR_TOKEN) { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"get_token(): max >= MAX_MR_TOKEN!"); + goto out_eof; + } + + memset(token, 0x00, sizeof(*token) * max); + + if (read_nextline) { + if (!filetext.len) + goto out_eof; + struct bstr nextline = bstr_getline(filetext, &filetext); + line = nextline.start; + line[nextline.len - 1] = 0; + line_pos = 0; + ++line_num; + read_nextline = 0; + } + for (i = 0; i < max; i++) { + while (isspace(line[line_pos])) + ++line_pos; + if (line[line_pos] == '\0' || line[line_pos] == '#' || + line[line_pos] == ';') { + read_nextline = 1; + if (i >= min) + goto out_ok; + goto out_eol; + } + token[i] = line + line_pos; + c = line[line_pos]; + if (c == '"' || c == '\'') { + token[i]++; + while (line[++line_pos] != c && line[line_pos]) + /* NOTHING */; + } else { + for (/* NOTHING */; !isspace(line[line_pos]) && + line[line_pos]; line_pos++) + /* NOTHING */; + } + if (!line[line_pos]) { + read_nextline = 1; + if (i >= min - 1) + goto out_ok; + goto out_eol; + } + line[line_pos] = '\0'; + line_pos++; + } +out_ok: + return i; +out_eof: + read_nextline = 1; + return RET_EOF; +out_eol: + return RET_EOL; +} + +static codecs_t *video_codecs=NULL; +static codecs_t *audio_codecs=NULL; +static int nr_vcodecs = 0; +static int nr_acodecs = 0; + +int parse_codec_cfg(const char *cfgfile) +{ + codecs_t *codec = NULL; // current codec + codecs_t **codecsp = NULL;// points to audio_codecs or to video_codecs + char *endptr; // strtoul()... + int *nr_codecsp; + int codec_type; /* TYPE_VIDEO/TYPE_AUDIO */ + int tmp, i; + int codec_cfg_min; + + for (struct bstr s = builtin_codecs_conf; ; bstr_getline(s, &s)) { + if (!s.len) + abort(); + if (bstr_eatstart0(&s, "release ")) { + codec_cfg_min = atoi(s.start); + break; + } + } + + // in case we call it a second time + codecs_uninit_free(); + + nr_vcodecs = 0; + nr_acodecs = 0; + + if (cfgfile) { + // Avoid printing errors from open_stream when trying optional files + if (!mp_path_exists(cfgfile)) { + mp_tmsg(MSGT_CODECCFG, MSGL_V, + "No optional codecs config file: %s\n", cfgfile); + return 0; + } + mp_msg(MSGT_CODECCFG, MSGL_V, "Reading codec config file: %s\n", + cfgfile); + struct stream *s = open_stream(cfgfile, NULL, NULL); + if (!s) + return 0; + filetext = stream_read_complete(s, NULL, 10000000, 1); + free_stream(s); + if (!filetext.start) + return 0; + } else + // Parsing modifies the data + filetext = bstrdup(NULL, builtin_codecs_conf); + void *tmpmem = filetext.start; + + read_nextline = 1; + + /* + * this only catches release lines at the start of + * codecs.conf, before audiocodecs and videocodecs. + */ + while ((tmp = get_token(1, 1)) == RET_EOL) + /* NOTHING */; + if (tmp == RET_EOF) + goto out; + if (!strcmp(token[0], "release")) { + if (get_token(1, 2) < 0) + goto err_out_parse_error; + tmp = atoi(token[0]); + if (tmp < codec_cfg_min) + goto err_out_release_num; + codecs_conf_release = tmp; + while ((tmp = get_token(1, 1)) == RET_EOL) + /* NOTHING */; + if (tmp == RET_EOF) + goto out; + } else + goto err_out_release_num; + + /* + * check if the next block starts with 'audiocodec' or + * with 'videocodec' + */ + if (!strcmp(token[0], "audiocodec") || !strcmp(token[0], "videocodec")) + goto loop_enter; + goto err_out_parse_error; + + while ((tmp = get_token(1, 1)) != RET_EOF) { + if (tmp == RET_EOL) + continue; + if (!strcmp(token[0], "audiocodec") || + !strcmp(token[0], "videocodec")) { + if (!validate_codec(codec, codec_type)) + goto err_out_not_valid; + loop_enter: + if (*token[0] == 'v') { + codec_type = TYPE_VIDEO; + nr_codecsp = &nr_vcodecs; + codecsp = &video_codecs; + } else { + assert(*token[0] == 'a'); + codec_type = TYPE_AUDIO; + nr_codecsp = &nr_acodecs; + codecsp = &audio_codecs; + } + if (!(*codecsp = realloc(*codecsp, + sizeof(codecs_t) * (*nr_codecsp + 2)))) { + mp_tmsg(MSGT_CODECCFG,MSGL_FATAL,"Can't realloc '*codecsp': %s\n", strerror(errno)); + goto err_out; + } + codec=*codecsp + *nr_codecsp; + ++*nr_codecsp; + memset(codec,0,sizeof(codecs_t)); + memset(codec->fourcc, 0xff, sizeof(codec->fourcc)); + memset(codec->outfmt, 0xff, sizeof(codec->outfmt)); + memset(codec->infmt, 0xff, sizeof(codec->infmt)); + + if (get_token(1, 1) < 0) + goto err_out_parse_error; + for (i = 0; i < *nr_codecsp - 1; i++) { + if(( (*codecsp)[i].name!=NULL) && + (!strcmp(token[0], (*codecsp)[i].name)) ) { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Codec name '%s' isn't unique.", token[0]); + goto err_out_print_linenum; + } + } + if (!(codec->name = strdup(token[0]))) { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Can't strdup -> 'name': %s\n", strerror(errno)); + goto err_out; + } + } else if (!strcmp(token[0], "info")) { + if (codec->info || get_token(1, 1) < 0) + goto err_out_parse_error; + if (!(codec->info = strdup(token[0]))) { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Can't strdup -> 'info': %s\n", strerror(errno)); + goto err_out; + } + } else if (!strcmp(token[0], "comment")) { + if (get_token(1, 1) < 0) + goto err_out_parse_error; + add_comment(token[0], &codec->comment); + } else if (!strcmp(token[0], "fourcc")) { + if (get_token(1, 2) < 0) + goto err_out_parse_error; + if (!add_to_fourcc(token[0], token[1], + codec->fourcc, + codec->fourccmap)) + goto err_out_print_linenum; + } else if (!strcmp(token[0], "format")) { + if (get_token(1, 2) < 0) + goto err_out_parse_error; + if (!add_to_format(token[0], token[1], + codec->fourcc,codec->fourccmap)) + goto err_out_print_linenum; + } else if (!strcmp(token[0], "driver")) { + if (get_token(1, 1) < 0) + goto err_out_parse_error; + if (!(codec->drv = strdup(token[0]))) { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Can't strdup -> 'driver': %s\n", strerror(errno)); + goto err_out; + } + } else if (!strcmp(token[0], "dll")) { + if (get_token(1, 1) < 0) + goto err_out_parse_error; + if (!(codec->dll = strdup(token[0]))) { + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Can't strdup -> 'dll': %s", strerror(errno)); + goto err_out; + } + } else if (!strcmp(token[0], "guid")) { + if (get_token(11, 11) < 0) + goto err_out_parse_error; + codec->guid.f1=strtoul(token[0],&endptr,0); + if ((*endptr != ',' || *(endptr + 1) != '\0') && + *endptr != '\0') + goto err_out_parse_error; + codec->guid.f2=strtoul(token[1],&endptr,0); + if ((*endptr != ',' || *(endptr + 1) != '\0') && + *endptr != '\0') + goto err_out_parse_error; + codec->guid.f3=strtoul(token[2],&endptr,0); + if ((*endptr != ',' || *(endptr + 1) != '\0') && + *endptr != '\0') + goto err_out_parse_error; + for (i = 0; i < 8; i++) { + codec->guid.f4[i]=strtoul(token[i + 3],&endptr,0); + if ((*endptr != ',' || *(endptr + 1) != '\0') && + *endptr != '\0') + goto err_out_parse_error; + } + } else if (!strcmp(token[0], "out")) { + if (get_token(1, 2) < 0) + goto err_out_parse_error; + if (!add_to_inout(token[0], token[1], codec->outfmt, + codec->outflags)) + goto err_out_print_linenum; + } else if (!strcmp(token[0], "in")) { + if (get_token(1, 2) < 0) + goto err_out_parse_error; + if (!add_to_inout(token[0], token[1], codec->infmt, + codec->inflags)) + goto err_out_print_linenum; + } else if (!strcmp(token[0], "flags")) { + if (get_token(1, 1) < 0) + goto err_out_parse_error; + if (!strcmp(token[0], "seekable")) + codec->flags |= CODECS_FLAG_SEEKABLE; + else if (!strcmp(token[0], "align16")) + codec->flags |= CODECS_FLAG_ALIGN16; + else + goto err_out_parse_error; + } else if (!strcmp(token[0], "status")) { + if (get_token(1, 1) < 0) + goto err_out_parse_error; + if (!strcasecmp(token[0], "working")) + codec->status = CODECS_STATUS_WORKING; + else if (!strcasecmp(token[0], "crashing")) + codec->status = CODECS_STATUS_NOT_WORKING; + else if (!strcasecmp(token[0], "untested")) + codec->status = CODECS_STATUS_UNTESTED; + else if (!strcasecmp(token[0], "buggy")) + codec->status = CODECS_STATUS_PROBLEMS; + else + goto err_out_parse_error; + } else if (!strcmp(token[0], "anyinput")) { + codec->anyinput = true; + } else + goto err_out_parse_error; + } + if (!validate_codec(codec, codec_type)) + goto err_out_not_valid; + mp_tmsg(MSGT_CODECCFG, MSGL_V, "%d audio & %d video codecs\n", nr_acodecs, + nr_vcodecs); + if(video_codecs) video_codecs[nr_vcodecs].name = NULL; + if(audio_codecs) audio_codecs[nr_acodecs].name = NULL; +out: + talloc_free(tmpmem); + line=NULL; + return 1; + +err_out_parse_error: + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"parse error"); +err_out_print_linenum: + PRINT_LINENUM; +err_out: + codecs_uninit_free(); + + talloc_free(tmpmem); + line=NULL; + line_num = 0; + return 0; +err_out_not_valid: + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"Codec is not defined correctly."); + goto err_out_print_linenum; +err_out_release_num: + mp_tmsg(MSGT_CODECCFG,MSGL_ERR,"This codecs.conf is too old and incompatible with this MPlayer release!"); + goto err_out_print_linenum; +} + +static void codecs_free(codecs_t* codecs,int count) { + int i; + for ( i = 0; i < count; i++) + if ( codecs[i].name ) { + free(codecs[i].name); + free(codecs[i].info); + free(codecs[i].comment); + free(codecs[i].dll); + free(codecs[i].drv); + } + free(codecs); +} + +void codecs_uninit_free(void) { + if (video_codecs) + codecs_free(video_codecs,nr_vcodecs); + video_codecs=NULL; + if (audio_codecs) + codecs_free(audio_codecs,nr_acodecs); + audio_codecs=NULL; +} + +codecs_t *find_audio_codec(unsigned int fourcc, unsigned int *fourccmap, + codecs_t *start, int force) +{ + return find_codec(fourcc, fourccmap, start, 1, force); +} + +codecs_t *find_video_codec(unsigned int fourcc, unsigned int *fourccmap, + codecs_t *start, int force) +{ + return find_codec(fourcc, fourccmap, start, 0, force); +} + +struct codecs *find_codec(unsigned int fourcc, unsigned int *fourccmap, + codecs_t *start, int audioflag, int force) +{ + struct codecs *c, *end; + + if (audioflag) { + c = audio_codecs; + end = c + nr_acodecs; + } else { + c = video_codecs; + end = c + nr_vcodecs; + } + if (start) + c = start + 1; // actually starts from the next one after the given one + for (; c < end; c++) { + for (int j = 0; j < CODECS_MAX_FOURCC; j++) { + if (c->fourcc[j] == -1) + break; + if (c->fourcc[j] == fourcc) { + if (fourccmap) + *fourccmap = c->fourccmap[j]; + return c; + } + } + if (c->anyinput || force) + return c; + } + return NULL; +} + +void stringset_init(stringset_t *set) { + *set = calloc(1, sizeof(char *)); +} + +void stringset_free(stringset_t *set) { + int count = 0; + while ((*set)[count]) free((*set)[count++]); + free(*set); + *set = NULL; +} + +void stringset_add(stringset_t *set, const char *str) { + int count = 0; + while ((*set)[count]) count++; + count++; + *set = realloc(*set, sizeof(char *) * (count + 1)); + (*set)[count - 1] = strdup(str); + (*set)[count] = NULL; +} + +int stringset_test(stringset_t *set, const char *str) { + stringset_t s; + for (s = *set; *s; s++) + if (strcmp(*s, str) == 0) + return 1; + return 0; +} + +void list_codecs(int audioflag){ + int i; + codecs_t *c; + + if (audioflag) { + i = nr_acodecs; + c = audio_codecs; + mp_msg(MSGT_CODECCFG,MSGL_INFO,"ac: afm: status: info: [lib/dll]\n"); + } else { + i = nr_vcodecs; + c = video_codecs; + mp_msg(MSGT_CODECCFG,MSGL_INFO,"vc: vfm: status: info: [lib/dll]\n"); + } + if(!i) return; + for (/* NOTHING */; i--; c++) { + char* s="unknown "; + switch(c->status){ + case CODECS_STATUS_WORKING: s="working ";break; + case CODECS_STATUS_PROBLEMS: s="problems";break; + case CODECS_STATUS_NOT_WORKING: s="crashing";break; + case CODECS_STATUS_UNTESTED: s="untested";break; + } + if(c->dll) + mp_msg(MSGT_CODECCFG,MSGL_INFO,"%-11s %-9s %s %s [%s]\n",c->name,c->drv,s,c->info,c->dll); + else + mp_msg(MSGT_CODECCFG,MSGL_INFO,"%-11s %-9s %s %s\n",c->name,c->drv,s,c->info); + } +} |