On Sat, Nov 16, 2024 at 12:25:04PM +0100, Niklas Haas wrote: > From: Niklas Haas <g...@haasn.dev> > > As part of a larger, ongoing effort to modernize and partially rewrite > libswscale, it was decided and generally agreed upon to introduce a new > public API for libswscale. This API is designed to be less stateful, more > explicitly defined, and considerably easier to use than the existing one. > > Most of the API work has been already accomplished in the previous commits, > this commit merely introduces the ability to use sws_scale_frame() > dynamically, without prior sws_init_context() calls. Instead, the new API > takes frame properties from the frames themselves, and the implementation is > based on the new SwsGraph API, which we simply reinitialize as needed. > > This high-level wrapper also recreates the logic that used to live inside > vf_scale for scaling interlaced frames, enabling it to be reused more easily > by end users. > > Finally, this function is designed to simply copy refs directly when nothing > needs to be done, substantially improving throughput of the noop fast path. > > Sponsored-by: Sovereign Tech Fund > Signed-off-by: Niklas Haas <g...@haasn.dev> > --- > libswscale/graph.c | 23 +++- > libswscale/swscale.c | 196 ++++++++++++++++++++++++++++++++-- > libswscale/swscale.h | 89 +++++++++++---- > libswscale/swscale_internal.h | 7 +- > libswscale/utils.c | 4 + > libswscale/x86/output.asm | 2 +- > 6 files changed, 291 insertions(+), 30 deletions(-)
[...]
> +static int validate_params(SwsContext *ctx)
> +{
> +#define VALIDATE(field, min, max) \
> + if (ctx->field < min || ctx->field > max) { \
> + av_log(ctx, AV_LOG_ERROR, "'%s' (%d) out of range [%d, %d]\n", \
> + #field, (int) ctx->field, min, max); \
> + return AVERROR(EINVAL); \
> + }
> +
> + VALIDATE(threads, 0, 8192);
a named "#define" would be better than a litteral number
should be ok otherwise
thx
[...]
--
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
If the United States is serious about tackling the national security threats
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values corporate profits and government espionage over security.-Bruce Schneier
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