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cmdutils: Allocate private decoder context if its not allocated yet.

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This fixes and simplifies setting decoder private options.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-05-16 21:00:06 +02:00
parent 68bed67d2e
commit 5319f48a57
1 changed files with 12 additions and 1 deletions
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13
cmdutils.c
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@ -411,13 +411,24 @@ int opt_timelimit(const char *opt, const char *arg)
return 0;
}
static void *alloc_priv_context(int size, AVClass *class){
void *p = av_mallocz(size);
if (p) {
*(AVClass**)p = class;
av_opt_set_defaults(p);
}
return p;
}
void set_context_opts(void *ctx, void *opts_ctx, int flags, AVCodec *codec)
{
int i;
void *priv_ctx=NULL;
if(!strcmp("AVCodecContext", (*(AVClass**)ctx)->class_name)){
AVCodecContext *avctx= ctx;
if(codec && codec->priv_class && avctx->priv_data){
if(codec && codec->priv_class){
if(!avctx->priv_data && codec->priv_data_size)
avctx->priv_data= alloc_priv_context(codec->priv_data_size, codec->priv_class);
priv_ctx= avctx->priv_data;
}
} else if (!strcmp("AVFormatContext", (*(AVClass**)ctx)->class_name)) {