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avfilter/vf_overlay: add auto format mode

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2017-06-24 10:18:30 +02:00
parent e5bce8b4ce
commit 565dc0e283
2 changed files with 51 additions and 9 deletions
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3
doc/filters.texi
View File

@ -10761,6 +10761,9 @@ force packed RGB output
@item gbrp
force planar RGB output
@item auto
automatically pick format
@end table
Default value is @samp{yuv420}.

57
libavfilter/vf_overlay.c
View File

@ -104,6 +104,7 @@ enum OverlayFormat {
OVERLAY_FORMAT_YUV444,
OVERLAY_FORMAT_RGB,
OVERLAY_FORMAT_GBRP,
OVERLAY_FORMAT_AUTO,
OVERLAY_FORMAT_NB
};
@ -211,6 +212,12 @@ static int process_command(AVFilterContext *ctx, const char *cmd, const char *ar
return ret;
}
static const enum AVPixelFormat alpha_pix_fmts[] = {
AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, AV_PIX_FMT_RGBA,
AV_PIX_FMT_BGRA, AV_PIX_FMT_GBRAP, AV_PIX_FMT_NONE
};
static int query_formats(AVFilterContext *ctx)
{
OverlayContext *s = ctx->priv;
@ -298,14 +305,26 @@ static int query_formats(AVFilterContext *ctx)
goto fail;
}
break;
case OVERLAY_FORMAT_AUTO:
if (!(main_formats = ff_make_format_list(alpha_pix_fmts))) {
ret = AVERROR(ENOMEM);
goto fail;
}
break;
default:
av_assert0(0);
}
if ((ret = ff_formats_ref(main_formats , &ctx->inputs[MAIN]->out_formats )) < 0 ||
(ret = ff_formats_ref(overlay_formats, &ctx->inputs[OVERLAY]->out_formats)) < 0 ||
(ret = ff_formats_ref(main_formats , &ctx->outputs[MAIN]->in_formats )) < 0)
if (s->format == OVERLAY_FORMAT_AUTO) {
ret = ff_set_common_formats(ctx, main_formats);
if (ret < 0)
goto fail;
} else {
if ((ret = ff_formats_ref(main_formats , &ctx->inputs[MAIN]->out_formats )) < 0 ||
(ret = ff_formats_ref(overlay_formats, &ctx->inputs[OVERLAY]->out_formats)) < 0 ||
(ret = ff_formats_ref(main_formats , &ctx->outputs[MAIN]->in_formats )) < 0)
goto fail;
}
return 0;
fail:
@ -318,12 +337,6 @@ fail:
return ret;
}
static const enum AVPixelFormat alpha_pix_fmts[] = {
AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, AV_PIX_FMT_RGBA,
AV_PIX_FMT_BGRA, AV_PIX_FMT_GBRAP, AV_PIX_FMT_NONE
};
static int config_input_overlay(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
@ -704,6 +717,31 @@ static int config_input_main(AVFilterLink *inlink)
case OVERLAY_FORMAT_GBRP:
s->blend_image = blend_image_gbrp;
break;
case OVERLAY_FORMAT_AUTO:
switch (inlink->format) {
case AV_PIX_FMT_YUVA420P:
s->blend_image = blend_image_yuv420;
break;
case AV_PIX_FMT_YUVA422P:
s->blend_image = blend_image_yuv422;
break;
case AV_PIX_FMT_YUVA444P:
s->blend_image = blend_image_yuv444;
break;
case AV_PIX_FMT_ARGB:
case AV_PIX_FMT_RGBA:
case AV_PIX_FMT_BGRA:
case AV_PIX_FMT_ABGR:
s->blend_image = blend_image_packed_rgb;
break;
case AV_PIX_FMT_GBRAP:
s->blend_image = blend_image_gbrp;
break;
default:
av_assert0(0);
break;
}
break;
}
return 0;
}
@ -798,6 +836,7 @@ static const AVOption overlay_options[] = {
{ "yuv444", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV444}, .flags = FLAGS, .unit = "format" },
{ "rgb", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_RGB}, .flags = FLAGS, .unit = "format" },
{ "gbrp", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_GBRP}, .flags = FLAGS, .unit = "format" },
{ "auto", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_AUTO}, .flags = FLAGS, .unit = "format" },
{ "repeatlast", "repeat overlay of the last overlay frame", OFFSET(dinput.repeatlast), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
{ NULL }
};