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-rw-r--r--libavfilter/drawutils.c502
1 files changed, 481 insertions, 21 deletions
diff --git a/libavfilter/drawutils.c b/libavfilter/drawutils.c
index e837760459..5a82b10cd6 100644
--- a/libavfilter/drawutils.c
+++ b/libavfilter/drawutils.c
@@ -1,58 +1,88 @@
/*
- * This file is part of Libav.
+ * Copyright 2011 Stefano Sabatini <stefano.sabatini-lala poste it>
+ * Copyright 2012 Nicolas George <nicolas.george normalesup org>
*
- * Libav is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
+#include "libavutil/avassert.h"
#include "libavutil/avutil.h"
#include "libavutil/colorspace.h"
#include "libavutil/mem.h"
#include "libavutil/pixdesc.h"
#include "drawutils.h"
+#include "formats.h"
enum { RED = 0, GREEN, BLUE, ALPHA };
-int ff_fill_line_with_color(uint8_t *line[4], int pixel_step[4], int w, uint8_t dst_color[4],
- enum AVPixelFormat pix_fmt, uint8_t rgba_color[4],
- int *is_packed_rgba, uint8_t rgba_map_ptr[4])
+int ff_fill_rgba_map(uint8_t *rgba_map, enum AVPixelFormat pix_fmt)
{
- uint8_t rgba_map[4] = {0};
- int i;
- const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(pix_fmt);
- int hsub = pix_desc->log2_chroma_w;
-
- *is_packed_rgba = 1;
switch (pix_fmt) {
+ case AV_PIX_FMT_0RGB:
case AV_PIX_FMT_ARGB: rgba_map[ALPHA] = 0; rgba_map[RED ] = 1; rgba_map[GREEN] = 2; rgba_map[BLUE ] = 3; break;
+ case AV_PIX_FMT_0BGR:
case AV_PIX_FMT_ABGR: rgba_map[ALPHA] = 0; rgba_map[BLUE ] = 1; rgba_map[GREEN] = 2; rgba_map[RED ] = 3; break;
+ case AV_PIX_FMT_RGB48LE:
+ case AV_PIX_FMT_RGB48BE:
+ case AV_PIX_FMT_RGBA64BE:
+ case AV_PIX_FMT_RGBA64LE:
+ case AV_PIX_FMT_RGB0:
case AV_PIX_FMT_RGBA:
case AV_PIX_FMT_RGB24: rgba_map[RED ] = 0; rgba_map[GREEN] = 1; rgba_map[BLUE ] = 2; rgba_map[ALPHA] = 3; break;
+ case AV_PIX_FMT_BGR48LE:
+ case AV_PIX_FMT_BGR48BE:
+ case AV_PIX_FMT_BGRA64BE:
+ case AV_PIX_FMT_BGRA64LE:
case AV_PIX_FMT_BGRA:
+ case AV_PIX_FMT_BGR0:
case AV_PIX_FMT_BGR24: rgba_map[BLUE ] = 0; rgba_map[GREEN] = 1; rgba_map[RED ] = 2; rgba_map[ALPHA] = 3; break;
- default:
- *is_packed_rgba = 0;
+ case AV_PIX_FMT_GBRAP:
+ case AV_PIX_FMT_GBRP: rgba_map[GREEN] = 0; rgba_map[BLUE ] = 1; rgba_map[RED ] = 2; rgba_map[ALPHA] = 3; break;
+ default: /* unsupported */
+ return AVERROR(EINVAL);
}
+ return 0;
+}
+
+int ff_fill_line_with_color(uint8_t *line[4], int pixel_step[4], int w, uint8_t dst_color[4],
+ enum AVPixelFormat pix_fmt, uint8_t rgba_color[4],
+ int *is_packed_rgba, uint8_t rgba_map_ptr[4])
+{
+ uint8_t rgba_map[4] = {0};
+ int i;
+ const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(pix_fmt);
+ int hsub;
+
+ av_assert0(pix_desc);
+
+ hsub = pix_desc->log2_chroma_w;
+
+ *is_packed_rgba = ff_fill_rgba_map(rgba_map, pix_fmt) >= 0;
if (*is_packed_rgba) {
pixel_step[0] = (av_get_bits_per_pixel(pix_desc))>>3;
for (i = 0; i < 4; i++)
dst_color[rgba_map[i]] = rgba_color[i];
- line[0] = av_malloc(w * pixel_step[0]);
+ line[0] = av_malloc_array(w, pixel_step[0]);
+ if (!line[0])
+ return AVERROR(ENOMEM);
for (i = 0; i < w; i++)
memcpy(line[0] + i * pixel_step[0], dst_color, pixel_step[0]);
if (rgba_map_ptr)
@@ -70,8 +100,13 @@ int ff_fill_line_with_color(uint8_t *line[4], int pixel_step[4], int w, uint8_t
int hsub1 = (plane == 1 || plane == 2) ? hsub : 0;
pixel_step[plane] = 1;
- line_size = (w >> hsub1) * pixel_step[plane];
+ line_size = FF_CEIL_RSHIFT(w, hsub1) * pixel_step[plane];
line[plane] = av_malloc(line_size);
+ if (!line[plane]) {
+ while(plane && line[plane-1])
+ av_freep(&line[--plane]);
+ return AVERROR(ENOMEM);
+ }
memset(line[plane], dst_color[plane], line_size);
}
}
@@ -89,11 +124,13 @@ void ff_draw_rectangle(uint8_t *dst[4], int dst_linesize[4],
for (plane = 0; plane < 4 && dst[plane]; plane++) {
int hsub1 = plane == 1 || plane == 2 ? hsub : 0;
int vsub1 = plane == 1 || plane == 2 ? vsub : 0;
+ int width = FF_CEIL_RSHIFT(w, hsub1);
+ int height = FF_CEIL_RSHIFT(h, vsub1);
p = dst[plane] + (y >> vsub1) * dst_linesize[plane];
- for (i = 0; i < (h >> vsub1); i++) {
+ for (i = 0; i < height; i++) {
memcpy(p + (x >> hsub1) * pixelstep[plane],
- src[plane], (w >> hsub1) * pixelstep[plane]);
+ src[plane], width * pixelstep[plane]);
p += dst_linesize[plane];
}
}
@@ -109,12 +146,435 @@ void ff_copy_rectangle(uint8_t *dst[4], int dst_linesize[4],
for (plane = 0; plane < 4 && dst[plane]; plane++) {
int hsub1 = plane == 1 || plane == 2 ? hsub : 0;
int vsub1 = plane == 1 || plane == 2 ? vsub : 0;
+ int width = FF_CEIL_RSHIFT(w, hsub1);
+ int height = FF_CEIL_RSHIFT(h, vsub1);
p = dst[plane] + (y >> vsub1) * dst_linesize[plane];
- for (i = 0; i < (h >> vsub1); i++) {
+ for (i = 0; i < height; i++) {
memcpy(p + (x >> hsub1) * pixelstep[plane],
- src[plane] + src_linesize[plane]*(i+(y2>>vsub1)), (w >> hsub1) * pixelstep[plane]);
+ src[plane] + src_linesize[plane]*(i+(y2>>vsub1)), width * pixelstep[plane]);
+ p += dst_linesize[plane];
+ }
+ }
+}
+
+int ff_draw_init(FFDrawContext *draw, enum AVPixelFormat format, unsigned flags)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(format);
+ const AVComponentDescriptor *c;
+ unsigned i, nb_planes = 0;
+ int pixelstep[MAX_PLANES] = { 0 };
+
+ if (!desc || !desc->name)
+ return AVERROR(EINVAL);
+ if (desc->flags & ~(AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB | AV_PIX_FMT_FLAG_PSEUDOPAL | AV_PIX_FMT_FLAG_ALPHA))
+ return AVERROR(ENOSYS);
+ for (i = 0; i < desc->nb_components; i++) {
+ c = &desc->comp[i];
+ /* for now, only 8-bits formats */
+ if (c->depth_minus1 != 8 - 1)
+ return AVERROR(ENOSYS);
+ if (c->plane >= MAX_PLANES)
+ return AVERROR(ENOSYS);
+ /* strange interleaving */
+ if (pixelstep[c->plane] != 0 &&
+ pixelstep[c->plane] != c->step_minus1 + 1)
+ return AVERROR(ENOSYS);
+ pixelstep[c->plane] = c->step_minus1 + 1;
+ if (pixelstep[c->plane] >= 8)
+ return AVERROR(ENOSYS);
+ nb_planes = FFMAX(nb_planes, c->plane + 1);
+ }
+ if ((desc->log2_chroma_w || desc->log2_chroma_h) && nb_planes < 3)
+ return AVERROR(ENOSYS); /* exclude NV12 and NV21 */
+ memset(draw, 0, sizeof(*draw));
+ draw->desc = desc;
+ draw->format = format;
+ draw->nb_planes = nb_planes;
+ memcpy(draw->pixelstep, pixelstep, sizeof(draw->pixelstep));
+ draw->hsub[1] = draw->hsub[2] = draw->hsub_max = desc->log2_chroma_w;
+ draw->vsub[1] = draw->vsub[2] = draw->vsub_max = desc->log2_chroma_h;
+ for (i = 0; i < ((desc->nb_components - 1) | 1); i++)
+ draw->comp_mask[desc->comp[i].plane] |=
+ 1 << (desc->comp[i].offset_plus1 - 1);
+ return 0;
+}
+
+void ff_draw_color(FFDrawContext *draw, FFDrawColor *color, const uint8_t rgba[4])
+{
+ unsigned i;
+ uint8_t rgba_map[4];
+
+ if (rgba != color->rgba)
+ memcpy(color->rgba, rgba, sizeof(color->rgba));
+ if ((draw->desc->flags & AV_PIX_FMT_FLAG_RGB) &&
+ ff_fill_rgba_map(rgba_map, draw->format) >= 0) {
+ if (draw->nb_planes == 1) {
+ for (i = 0; i < 4; i++)
+ color->comp[0].u8[rgba_map[i]] = rgba[i];
+ } else {
+ for (i = 0; i < 4; i++)
+ color->comp[rgba_map[i]].u8[0] = rgba[i];
+ }
+ } else if (draw->nb_planes == 3 || draw->nb_planes == 4) {
+ /* assume YUV */
+ color->comp[0].u8[0] = RGB_TO_Y_CCIR(rgba[0], rgba[1], rgba[2]);
+ color->comp[1].u8[0] = RGB_TO_U_CCIR(rgba[0], rgba[1], rgba[2], 0);
+ color->comp[2].u8[0] = RGB_TO_V_CCIR(rgba[0], rgba[1], rgba[2], 0);
+ color->comp[3].u8[0] = rgba[3];
+ } else if (draw->format == AV_PIX_FMT_GRAY8 || draw->format == AV_PIX_FMT_GRAY8A) {
+ color->comp[0].u8[0] = RGB_TO_Y_CCIR(rgba[0], rgba[1], rgba[2]);
+ color->comp[1].u8[0] = rgba[3];
+ } else {
+ av_log(NULL, AV_LOG_WARNING,
+ "Color conversion not implemented for %s\n", draw->desc->name);
+ memset(color, 128, sizeof(*color));
+ }
+}
+
+static uint8_t *pointer_at(FFDrawContext *draw, uint8_t *data[], int linesize[],
+ int plane, int x, int y)
+{
+ return data[plane] +
+ (y >> draw->vsub[plane]) * linesize[plane] +
+ (x >> draw->hsub[plane]) * draw->pixelstep[plane];
+}
+
+void ff_copy_rectangle2(FFDrawContext *draw,
+ uint8_t *dst[], int dst_linesize[],
+ uint8_t *src[], int src_linesize[],
+ int dst_x, int dst_y, int src_x, int src_y,
+ int w, int h)
+{
+ int plane, y, wp, hp;
+ uint8_t *p, *q;
+
+ for (plane = 0; plane < draw->nb_planes; plane++) {
+ p = pointer_at(draw, src, src_linesize, plane, src_x, src_y);
+ q = pointer_at(draw, dst, dst_linesize, plane, dst_x, dst_y);
+ wp = FF_CEIL_RSHIFT(w, draw->hsub[plane]) * draw->pixelstep[plane];
+ hp = FF_CEIL_RSHIFT(h, draw->vsub[plane]);
+ for (y = 0; y < hp; y++) {
+ memcpy(q, p, wp);
+ p += src_linesize[plane];
+ q += dst_linesize[plane];
+ }
+ }
+}
+
+void ff_fill_rectangle(FFDrawContext *draw, FFDrawColor *color,
+ uint8_t *dst[], int dst_linesize[],
+ int dst_x, int dst_y, int w, int h)
+{
+ int plane, x, y, wp, hp;
+ uint8_t *p0, *p;
+
+ for (plane = 0; plane < draw->nb_planes; plane++) {
+ p0 = pointer_at(draw, dst, dst_linesize, plane, dst_x, dst_y);
+ wp = FF_CEIL_RSHIFT(w, draw->hsub[plane]);
+ hp = FF_CEIL_RSHIFT(h, draw->vsub[plane]);
+ if (!hp)
+ return;
+ p = p0;
+ /* copy first line from color */
+ for (x = 0; x < wp; x++) {
+ memcpy(p, color->comp[plane].u8, draw->pixelstep[plane]);
+ p += draw->pixelstep[plane];
+ }
+ wp *= draw->pixelstep[plane];
+ /* copy next lines from first line */
+ p = p0 + dst_linesize[plane];
+ for (y = 1; y < hp; y++) {
+ memcpy(p, p0, wp);
p += dst_linesize[plane];
}
}
}
+
+/**
+ * Clip interval [x; x+w[ within [0; wmax[.
+ * The resulting w may be negative if the final interval is empty.
+ * dx, if not null, return the difference between in and out value of x.
+ */
+static void clip_interval(int wmax, int *x, int *w, int *dx)
+{
+ if (dx)
+ *dx = 0;
+ if (*x < 0) {
+ if (dx)
+ *dx = -*x;
+ *w += *x;
+ *x = 0;
+ }
+ if (*x + *w > wmax)
+ *w = wmax - *x;
+}
+
+/**
+ * Decompose w pixels starting at x
+ * into start + (w starting at x) + end
+ * with x and w aligned on multiples of 1<<sub.
+ */
+static void subsampling_bounds(int sub, int *x, int *w, int *start, int *end)
+{
+ int mask = (1 << sub) - 1;
+
+ *start = (-*x) & mask;
+ *x += *start;
+ *start = FFMIN(*start, *w);
+ *w -= *start;
+ *end = *w & mask;
+ *w >>= sub;
+}
+
+static int component_used(FFDrawContext *draw, int plane, int comp)
+{
+ return (draw->comp_mask[plane] >> comp) & 1;
+}
+
+/* If alpha is in the [ 0 ; 0x1010101 ] range,
+ then alpha * value is in the [ 0 ; 0xFFFFFFFF ] range,
+ and >> 24 gives a correct rounding. */
+static void blend_line(uint8_t *dst, unsigned src, unsigned alpha,
+ int dx, int w, unsigned hsub, int left, int right)
+{
+ unsigned asrc = alpha * src;
+ unsigned tau = 0x1010101 - alpha;
+ int x;
+
+ if (left) {
+ unsigned suba = (left * alpha) >> hsub;
+ *dst = (*dst * (0x1010101 - suba) + src * suba) >> 24;
+ dst += dx;
+ }
+ for (x = 0; x < w; x++) {
+ *dst = (*dst * tau + asrc) >> 24;
+ dst += dx;
+ }
+ if (right) {
+ unsigned suba = (right * alpha) >> hsub;
+ *dst = (*dst * (0x1010101 - suba) + src * suba) >> 24;
+ }
+}
+
+void ff_blend_rectangle(FFDrawContext *draw, FFDrawColor *color,
+ uint8_t *dst[], int dst_linesize[],
+ int dst_w, int dst_h,
+ int x0, int y0, int w, int h)
+{
+ unsigned alpha, nb_planes, nb_comp, plane, comp;
+ int w_sub, h_sub, x_sub, y_sub, left, right, top, bottom, y;
+ uint8_t *p0, *p;
+
+ /* TODO optimize if alpha = 0xFF */
+ clip_interval(dst_w, &x0, &w, NULL);
+ clip_interval(dst_h, &y0, &h, NULL);
+ if (w <= 0 || h <= 0 || !color->rgba[3])
+ return;
+ /* 0x10203 * alpha + 2 is in the [ 2 ; 0x1010101 - 2 ] range */
+ alpha = 0x10203 * color->rgba[3] + 0x2;
+ nb_planes = (draw->nb_planes - 1) | 1; /* eliminate alpha */
+ for (plane = 0; plane < nb_planes; plane++) {
+ nb_comp = draw->pixelstep[plane];
+ p0 = pointer_at(draw, dst, dst_linesize, plane, x0, y0);
+ w_sub = w;
+ h_sub = h;
+ x_sub = x0;
+ y_sub = y0;
+ subsampling_bounds(draw->hsub[plane], &x_sub, &w_sub, &left, &right);
+ subsampling_bounds(draw->vsub[plane], &y_sub, &h_sub, &top, &bottom);
+ for (comp = 0; comp < nb_comp; comp++) {
+ if (!component_used(draw, plane, comp))
+ continue;
+ p = p0 + comp;
+ if (top) {
+ blend_line(p, color->comp[plane].u8[comp], alpha >> 1,
+ draw->pixelstep[plane], w_sub,
+ draw->hsub[plane], left, right);
+ p += dst_linesize[plane];
+ }
+ for (y = 0; y < h_sub; y++) {
+ blend_line(p, color->comp[plane].u8[comp], alpha,
+ draw->pixelstep[plane], w_sub,
+ draw->hsub[plane], left, right);
+ p += dst_linesize[plane];
+ }
+ if (bottom)
+ blend_line(p, color->comp[plane].u8[comp], alpha >> 1,
+ draw->pixelstep[plane], w_sub,
+ draw->hsub[plane], left, right);
+ }
+ }
+}
+
+static void blend_pixel(uint8_t *dst, unsigned src, unsigned alpha,
+ uint8_t *mask, int mask_linesize, int l2depth,
+ unsigned w, unsigned h, unsigned shift, unsigned xm0)
+{
+ unsigned xm, x, y, t = 0;
+ unsigned xmshf = 3 - l2depth;
+ unsigned xmmod = 7 >> l2depth;
+ unsigned mbits = (1 << (1 << l2depth)) - 1;
+ unsigned mmult = 255 / mbits;
+
+ for (y = 0; y < h; y++) {
+ xm = xm0;
+ for (x = 0; x < w; x++) {
+ t += ((mask[xm >> xmshf] >> ((~xm & xmmod) << l2depth)) & mbits)
+ * mmult;
+ xm++;
+ }
+ mask += mask_linesize;
+ }
+ alpha = (t >> shift) * alpha;
+ *dst = ((0x1010101 - alpha) * *dst + alpha * src) >> 24;
+}
+
+static void blend_line_hv(uint8_t *dst, int dst_delta,
+ unsigned src, unsigned alpha,
+ uint8_t *mask, int mask_linesize, int l2depth, int w,
+ unsigned hsub, unsigned vsub,
+ int xm, int left, int right, int hband)
+{
+ int x;
+
+ if (left) {
+ blend_pixel(dst, src, alpha, mask, mask_linesize, l2depth,
+ left, hband, hsub + vsub, xm);
+ dst += dst_delta;
+ xm += left;
+ }
+ for (x = 0; x < w; x++) {
+ blend_pixel(dst, src, alpha, mask, mask_linesize, l2depth,
+ 1 << hsub, hband, hsub + vsub, xm);
+ dst += dst_delta;
+ xm += 1 << hsub;
+ }
+ if (right)
+ blend_pixel(dst, src, alpha, mask, mask_linesize, l2depth,
+ right, hband, hsub + vsub, xm);
+}
+
+void ff_blend_mask(FFDrawContext *draw, FFDrawColor *color,
+ uint8_t *dst[], int dst_linesize[], int dst_w, int dst_h,
+ uint8_t *mask, int mask_linesize, int mask_w, int mask_h,
+ int l2depth, unsigned endianness, int x0, int y0)
+{
+ unsigned alpha, nb_planes, nb_comp, plane, comp;
+ int xm0, ym0, w_sub, h_sub, x_sub, y_sub, left, right, top, bottom, y;
+ uint8_t *p0, *p, *m;
+
+ clip_interval(dst_w, &x0, &mask_w, &xm0);
+ clip_interval(dst_h, &y0, &mask_h, &ym0);
+ mask += ym0 * mask_linesize;
+ if (mask_w <= 0 || mask_h <= 0 || !color->rgba[3])
+ return;
+ /* alpha is in the [ 0 ; 0x10203 ] range,
+ alpha * mask is in the [ 0 ; 0x1010101 - 4 ] range */
+ alpha = (0x10307 * color->rgba[3] + 0x3) >> 8;
+ nb_planes = (draw->nb_planes - 1) | 1; /* eliminate alpha */
+ for (plane = 0; plane < nb_planes; plane++) {
+ nb_comp = draw->pixelstep[plane];
+ p0 = pointer_at(draw, dst, dst_linesize, plane, x0, y0);
+ w_sub = mask_w;
+ h_sub = mask_h;
+ x_sub = x0;
+ y_sub = y0;
+ subsampling_bounds(draw->hsub[plane], &x_sub, &w_sub, &left, &right);
+ subsampling_bounds(draw->vsub[plane], &y_sub, &h_sub, &top, &bottom);
+ for (comp = 0; comp < nb_comp; comp++) {
+ if (!component_used(draw, plane, comp))
+ continue;
+ p = p0 + comp;
+ m = mask;
+ if (top) {
+ blend_line_hv(p, draw->pixelstep[plane],
+ color->comp[plane].u8[comp], alpha,
+ m, mask_linesize, l2depth, w_sub,
+ draw->hsub[plane], draw->vsub[plane],
+ xm0, left, right, top);
+ p += dst_linesize[plane];
+ m += top * mask_linesize;
+ }
+ for (y = 0; y < h_sub; y++) {
+ blend_line_hv(p, draw->pixelstep[plane],
+ color->comp[plane].u8[comp], alpha,
+ m, mask_linesize, l2depth, w_sub,
+ draw->hsub[plane], draw->vsub[plane],
+ xm0, left, right, 1 << draw->vsub[plane]);
+ p += dst_linesize[plane];
+ m += mask_linesize << draw->vsub[plane];
+ }
+ if (bottom)
+ blend_line_hv(p, draw->pixelstep[plane],
+ color->comp[plane].u8[comp], alpha,
+ m, mask_linesize, l2depth, w_sub,
+ draw->hsub[plane], draw->vsub[plane],
+ xm0, left, right, bottom);
+ }
+ }
+}
+
+int ff_draw_round_to_sub(FFDrawContext *draw, int sub_dir, int round_dir,
+ int value)
+{
+ unsigned shift = sub_dir ? draw->vsub_max : draw->hsub_max;
+
+ if (!shift)
+ return value;
+ if (round_dir >= 0)
+ value += round_dir ? (1 << shift) - 1 : 1 << (shift - 1);
+ return (value >> shift) << shift;
+}
+
+AVFilterFormats *ff_draw_supported_pixel_formats(unsigned flags)
+{
+ enum AVPixelFormat i;
+ FFDrawContext draw;
+ AVFilterFormats *fmts = NULL;
+
+ for (i = 0; av_pix_fmt_desc_get(i); i++)
+ if (ff_draw_init(&draw, i, flags) >= 0)
+ ff_add_format(&fmts, i);
+ return fmts;
+}
+
+#ifdef TEST
+
+#undef printf
+
+int main(void)
+{
+ enum AVPixelFormat f;
+ const AVPixFmtDescriptor *desc;
+ FFDrawContext draw;
+ FFDrawColor color;
+ int r, i;
+
+ for (f = 0; av_pix_fmt_desc_get(f); f++) {
+ desc = av_pix_fmt_desc_get(f);
+ if (!desc->name)
+ continue;
+ printf("Testing %s...%*s", desc->name,
+ (int)(16 - strlen(desc->name)), "");
+ r = ff_draw_init(&draw, f, 0);
+ if (r < 0) {
+ char buf[128];
+ av_strerror(r, buf, sizeof(buf));
+ printf("no: %s\n", buf);
+ continue;
+ }
+ ff_draw_color(&draw, &color, (uint8_t[]) { 1, 0, 0, 1 });
+ for (i = 0; i < sizeof(color); i++)
+ if (((uint8_t *)&color)[i] != 128)
+ break;
+ if (i == sizeof(color)) {
+ printf("fallback color\n");
+ continue;
+ }
+ printf("ok\n");
+ }
+ return 0;
+}
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-06 08:55:48 +0000