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vf_scale: use the pixfmt descriptor API 

Avoid using AV_PIX_FMT_NB, since that hardcodes the number of pixel
formats into lavfi and will break when a shared lavu is updated, adding
new pixel formats.
This commit is contained in:
Anton Khirnov 2014-05-24 11:15:15 +02:00
parent 45fc73edfe
commit 862f33c10e
1 changed files with 8 additions and 2 deletions
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10
libavfilter/vf_scale.c
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@ -120,25 +120,31 @@ static int query_formats(AVFilterContext *ctx)
int ret;
if (ctx->inputs[0]) {
const AVPixFmtDescriptor *desc = NULL;
formats = NULL;
for (pix_fmt = 0; pix_fmt < AV_PIX_FMT_NB; pix_fmt++)
while ((desc = av_pix_fmt_desc_next(desc))) {
pix_fmt = av_pix_fmt_desc_get_id(desc);
if ((sws_isSupportedInput(pix_fmt) ||
sws_isSupportedEndiannessConversion(pix_fmt))
&& (ret = ff_add_format(&formats, pix_fmt)) < 0) {
ff_formats_unref(&formats);
return ret;
}
}
ff_formats_ref(formats, &ctx->inputs[0]->out_formats);
}
if (ctx->outputs[0]) {
const AVPixFmtDescriptor *desc = NULL;
formats = NULL;
for (pix_fmt = 0; pix_fmt < AV_PIX_FMT_NB; pix_fmt++)
while ((desc = av_pix_fmt_desc_next(desc))) {
pix_fmt = av_pix_fmt_desc_get_id(desc);
if ((sws_isSupportedOutput(pix_fmt) ||
sws_isSupportedEndiannessConversion(pix_fmt))
&& (ret = ff_add_format(&formats, pix_fmt)) < 0) {
ff_formats_unref(&formats);
return ret;
}
}
ff_formats_ref(formats, &ctx->outputs[0]->in_formats);
}