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c1ddfb5907
mpv/core/codec-cfg.c
wm4 06ccd9f671 video: simplify decoder pixel format handling 
Simplify the decoder pixel format handling by making it handle only
the case vd_lavc needs: a video stream always decodes to a single
pixel format.

Remove the handling for multiple pixel formats, and remove the
codecs.conf pixel format declarations that are left.

Remove the handling of "ambiguous" pixel formats like YV12 vs. I420 (via
VDCTRL_QUERY_FORMAT etc.). This is only a problem if the video chain
supports I420, but not YV12, which doesn't seem to be the case anywhere,
and in fact would not have any advantage.

Make the "flip" flag a global per-codec flag, rather than a pixel format
specific flag. (Some ffmpeg decoders still return a flipped image, so
this has to be done manually.) Also fix handling of the flip operation:
do not overwrite the global flip option, and make the --flip option
invert the codec flip option rather than overriding it.
2013-01-13 17:39:31 +01:00

608 lines
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/*
* 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 "core/mp_msg.h"
#include "video/img_format.h"
#include "codec-cfg.h"
#include "core/bstr.h"
#include "stream/stream.h"
#include "core/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 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 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;
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));
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], "flags")) {
if (get_token(1, 1) < 0)
goto err_out_parse_error;
if (!strcmp(token[0], "flip"))
codec->flags |= CODECS_FLAG_FLIP;
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);
}
}
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