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lavfi/vf_vpp_qsv: allow special values for the output video dimensions

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Special values are:
0 = original width/height
-1 = keep original aspect

This is in preparation for reusing the code for other QSV filters.

Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
This commit is contained in:
Haihao Xiang 2023-01-09 15:12:05 +08:00
parent 129530e917
commit eb71c67dcc
1 changed files with 40 additions and 7 deletions
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47
libavfilter/vf_vpp_qsv.c
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@ -59,6 +59,11 @@ typedef struct VPPContext{
mfxExtVPPMirroring mirroring_conf;
mfxExtVPPScaling scale_conf;
/**
* New dimensions. Special values are:
* 0 = original width/height
* -1 = keep original aspect
*/
int out_width;
int out_height;
/**
@ -127,10 +132,10 @@ static const AVOption options[] = {
{ "cx", "set the x crop area expression", OFFSET(cx), AV_OPT_TYPE_STRING, { .str = "(in_w-out_w)/2" }, 0, 0, FLAGS },
{ "cy", "set the y crop area expression", OFFSET(cy), AV_OPT_TYPE_STRING, { .str = "(in_h-out_h)/2" }, 0, 0, FLAGS },
{ "w", "Output video width", OFFSET(ow), AV_OPT_TYPE_STRING, { .str="cw" }, 0, 255, .flags = FLAGS },
{ "width", "Output video width", OFFSET(ow), AV_OPT_TYPE_STRING, { .str="cw" }, 0, 255, .flags = FLAGS },
{ "h", "Output video height", OFFSET(oh), AV_OPT_TYPE_STRING, { .str="w*ch/cw" }, 0, 255, .flags = FLAGS },
{ "height", "Output video height", OFFSET(oh), AV_OPT_TYPE_STRING, { .str="w*ch/cw" }, 0, 255, .flags = FLAGS },
{ "w", "Output video width(0=input video width, -1=keep input video aspect)", OFFSET(ow), AV_OPT_TYPE_STRING, { .str="cw" }, 0, 255, .flags = FLAGS },
{ "width", "Output video width(0=input video width, -1=keep input video aspect)", OFFSET(ow), AV_OPT_TYPE_STRING, { .str="cw" }, 0, 255, .flags = FLAGS },
{ "h", "Output video height(0=input video height, -1=keep input video aspect)", OFFSET(oh), AV_OPT_TYPE_STRING, { .str="w*ch/cw" }, 0, 255, .flags = FLAGS },
{ "height", "Output video height(0=input video height, -1=keep input video aspect)", OFFSET(oh), AV_OPT_TYPE_STRING, { .str="w*ch/cw" }, 0, 255, .flags = FLAGS },
{ "format", "Output pixel format", OFFSET(output_format_str), AV_OPT_TYPE_STRING, { .str = "same" }, .flags = FLAGS },
{ "async_depth", "Internal parallelization depth, the higher the value the higher the latency.", OFFSET(async_depth), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, .flags = FLAGS },
{ "scale_mode", "scale & format conversion mode: 0=auto, 1=low power, 2=high quality", OFFSET(scale_mode), AV_OPT_TYPE_INT, { .i64 = MFX_SCALING_MODE_DEFAULT }, MFX_SCALING_MODE_DEFAULT, MFX_SCALING_MODE_QUALITY, .flags = FLAGS, "scale mode" },
@ -276,6 +281,7 @@ static int config_input(AVFilterLink *inlink)
AVFilterContext *ctx = inlink->dst;
VPPContext *vpp = ctx->priv;
int ret;
int64_t ow, oh;
if (vpp->framerate.den == 0 || vpp->framerate.num == 0)
vpp->framerate = inlink->frame_rate;
@ -289,11 +295,38 @@ static int config_input(AVFilterLink *inlink)
return ret;
}
if (vpp->out_height == 0 || vpp->out_width == 0) {
vpp->out_width = inlink->w;
vpp->out_height = inlink->h;
ow = vpp->out_width;
oh = vpp->out_height;
/* sanity check params */
if (ow < -1 || oh < -1) {
av_log(ctx, AV_LOG_ERROR, "Size values less than -1 are not acceptable.\n");
return AVERROR(EINVAL);
}
if (ow == -1 && oh == -1)
vpp->out_width = vpp->out_height = 0;
if (!(ow = vpp->out_width))
ow = inlink->w;
if (!(oh = vpp->out_height))
oh = inlink->h;
if (ow == -1)
ow = av_rescale(oh, inlink->w, inlink->h);
if (oh == -1)
oh = av_rescale(ow, inlink->h, inlink->w);
if (ow > INT_MAX || oh > INT_MAX ||
(oh * inlink->w) > INT_MAX ||
(ow * inlink->h) > INT_MAX)
av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
vpp->out_width = ow;
vpp->out_height = oh;
if (vpp->use_crop) {
vpp->crop_x = FFMAX(vpp->crop_x, 0);
vpp->crop_y = FFMAX(vpp->crop_y, 0);