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Provide non null class name to avoid crash with ffmpeg -h. 

Originally committed as revision 12300 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-03-03 19:53:27 +00:00
parent 6548ff57c0
commit f15e6b869f
1 changed files with 4 additions and 3 deletions
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7
libavcodec/imgresample.c
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@ -512,6 +512,8 @@ void img_resample_close(ImgReSampleContext *s)
av_free(s);
}
static const AVClass context_class = { "imgresample", NULL, NULL };
struct SwsContext *sws_getContext(int srcW, int srcH, int srcFormat,
int dstW, int dstH, int dstFormat,
int flags, SwsFilter *srcFilter,
@ -520,13 +522,12 @@ struct SwsContext *sws_getContext(int srcW, int srcH, int srcFormat,
struct SwsContext *ctx;
ctx = av_malloc(sizeof(struct SwsContext));
if (ctx)
ctx->av_class = av_mallocz(sizeof(AVClass));
if (!ctx || !ctx->av_class) {
if (!ctx) {
av_log(NULL, AV_LOG_ERROR, "Cannot allocate a resampling context!\n");
return NULL;
}
ctx->av_class = &context_class;
if ((srcH != dstH) || (srcW != dstW)) {
if ((srcFormat != PIX_FMT_YUV420P) || (dstFormat != PIX_FMT_YUV420P)) {