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https://github.com/mpv-player/mpv
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codecs.conf versioning - patch by Joey Parrish <joey@yunamusic.com>
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6201 b3059339-0415-0410-9bf9-f77b7e298cf2
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@ -33,6 +33,18 @@ care. However, they are organized in a particular order for the benefit of
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human readers. For example, all of the open source decoders that MPlayer
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implements natively are grouped in one section.
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Release Number
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--------------
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Your codecs.conf now requires a release number to avoid codec release
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incompatibilities. The format is simple: (YYYYMMDD)
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release 20020520
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Whenever changes are made to the codecs that *require* an updated
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codecs.conf, then MPlayer will no longer accept outdated versions.
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It is not recommended to change this line unless you know exactly
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what you are doing.
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Video Codecs
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------------
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Let's jump right in with an example. Here is an example video codec block:
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28
codec-cfg.c
28
codec-cfg.c
@ -368,10 +368,10 @@ 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 read_nextline = 1;
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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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@ -466,15 +466,33 @@ int parse_codec_cfg(char *cfgfile)
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mp_msg(MSGT_CODECCFG,MSGL_FATAL,"can't get memory for 'line': %s\n", strerror(errno));
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return 0;
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}
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read_nextline = 1;
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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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* this only catches release lines at the start of
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* codecs.conf, before audiocodecs and videocodecs.
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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)
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goto out;
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if (!strcmp(token[0], "release")) {
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if (get_token(1, 2) < 0)
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goto err_out_parse_error;
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tmp = atoi(token[0]);
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if (tmp < CODEC_CFG_MIN)
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goto err_out_release_num;
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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)
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goto out;
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} else
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goto err_out_release_num;
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/*
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* check if the next block starts with 'audiocodec' or
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* with 'videocodec'
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*/
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if (!strcmp(token[0], "audiocodec") || !strcmp(token[0], "videocodec"))
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goto loop_enter;
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goto err_out_parse_error;
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@ -652,11 +670,15 @@ err_out:
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free(line);
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line=NULL;
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line_num = 0;
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fclose(fp);
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return 0;
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err_out_not_valid:
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mp_msg(MSGT_CODECCFG,MSGL_ERR,"codec is not defined correctly");
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goto err_out_print_linenum;
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err_out_release_num:
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mp_msg(MSGT_CODECCFG,MSGL_ERR,"this codecs.conf is too old, incompatible with this mplayer release!");
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goto err_out_print_linenum;
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}
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codecs_t *find_audio_codec(unsigned int fourcc, unsigned int *fourccmap,
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@ -1,6 +1,8 @@
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#ifndef __CODEC_CFG_H
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#define __CODEC_CFG_H
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#define CODEC_CFG_MIN 20020520
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#define CODECS_MAX_FOURCC 32
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#define CODECS_MAX_OUTFMT 16
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#define CODECS_MAX_INFMT 16
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@ -3,6 +3,8 @@
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; Before editing this file, please read DOCS/tech/codecs.conf.txt !
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;=============================================================================
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release 20020520
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;=============================================================================
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; VIDEO CODECS
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;=============================================================================
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