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-rw-r--r--libavfilter/vf_hflip.c152
1 files changed, 88 insertions, 64 deletions
diff --git a/libavfilter/vf_hflip.c b/libavfilter/vf_hflip.c
index 1eb8d698d1..cf20c193f7 100644
--- a/libavfilter/vf_hflip.c
+++ b/libavfilter/vf_hflip.c
@@ -2,20 +2,20 @@
* Copyright (c) 2007 Benoit Fouet
* Copyright (c) 2010 Stefano Sabatini
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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
*/
@@ -26,6 +26,7 @@
#include <string.h>
+#include "libavutil/opt.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
@@ -36,81 +37,79 @@
#include "libavutil/imgutils.h"
typedef struct FlipContext {
+ const AVClass *class;
int max_step[4]; ///< max pixel step for each plane, expressed as a number of bytes
- int hsub, vsub; ///< chroma subsampling
+ int planewidth[4]; ///< width of each plane
+ int planeheight[4]; ///< height of each plane
} FlipContext;
+static const AVOption hflip_options[] = {
+ { NULL }
+};
+
+AVFILTER_DEFINE_CLASS(hflip);
+
static int query_formats(AVFilterContext *ctx)
{
- static const enum AVPixelFormat pix_fmts[] = {
- AV_PIX_FMT_RGB48BE, AV_PIX_FMT_RGB48LE,
- AV_PIX_FMT_BGR48BE, AV_PIX_FMT_BGR48LE,
- AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA,
- AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA,
- AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
- AV_PIX_FMT_RGB565BE, AV_PIX_FMT_RGB565LE,
- AV_PIX_FMT_RGB555BE, AV_PIX_FMT_RGB555LE,
- AV_PIX_FMT_BGR565BE, AV_PIX_FMT_BGR565LE,
- AV_PIX_FMT_BGR555BE, AV_PIX_FMT_BGR555LE,
- AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_GRAY16LE,
- AV_PIX_FMT_YUV420P16LE, AV_PIX_FMT_YUV420P16BE,
- AV_PIX_FMT_YUV422P16LE, AV_PIX_FMT_YUV422P16BE,
- AV_PIX_FMT_YUV444P16LE, AV_PIX_FMT_YUV444P16BE,
- AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P,
- AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P,
- AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
- AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P,
- AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ440P,
- AV_PIX_FMT_YUVA420P,
- AV_PIX_FMT_RGB8, AV_PIX_FMT_BGR8,
- AV_PIX_FMT_RGB4_BYTE, AV_PIX_FMT_BGR4_BYTE,
- AV_PIX_FMT_PAL8, AV_PIX_FMT_GRAY8,
- AV_PIX_FMT_NONE
- };
-
- ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
- return 0;
+ AVFilterFormats *pix_fmts = NULL;
+ int fmt, ret;
+
+ for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) {
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
+ if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL ||
+ desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ||
+ (desc->log2_chroma_w != desc->log2_chroma_h &&
+ desc->comp[0].plane == desc->comp[1].plane)) &&
+ (ret = ff_add_format(&pix_fmts, fmt)) < 0)
+ return ret;
+ }
+
+ return ff_set_common_formats(ctx, pix_fmts);
}
static int config_props(AVFilterLink *inlink)
{
FlipContext *s = inlink->dst->priv;
const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
+ const int hsub = pix_desc->log2_chroma_w;
+ const int vsub = pix_desc->log2_chroma_h;
av_image_fill_max_pixsteps(s->max_step, NULL, pix_desc);
- s->hsub = pix_desc->log2_chroma_w;
- s->vsub = pix_desc->log2_chroma_h;
+ s->planewidth[0] = s->planewidth[3] = inlink->w;
+ s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
+ s->planeheight[0] = s->planeheight[3] = inlink->h;
+ s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
return 0;
}
-static int filter_frame(AVFilterLink *inlink, AVFrame *in)
+typedef struct ThreadData {
+ AVFrame *in, *out;
+} ThreadData;
+
+static int filter_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
{
- AVFilterContext *ctx = inlink->dst;
- FlipContext *s = ctx->priv;
- AVFilterLink *outlink = ctx->outputs[0];
- AVFrame *out;
+ FlipContext *s = ctx->priv;
+ ThreadData *td = arg;
+ AVFrame *in = td->in;
+ AVFrame *out = td->out;
uint8_t *inrow, *outrow;
- int i, j, plane, step, hsub, vsub;
+ int i, j, plane, step;
- out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
- if (!out) {
- av_frame_free(&in);
- return AVERROR(ENOMEM);
- }
- av_frame_copy_props(out, in);
+ for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) {
+ const int width = s->planewidth[plane];
+ const int height = s->planeheight[plane];
+ const int start = (height * job ) / nb_jobs;
+ const int end = (height * (job+1)) / nb_jobs;
- for (plane = 0; plane < 4 && in->data[plane]; plane++) {
step = s->max_step[plane];
- hsub = (plane == 1 || plane == 2) ? s->hsub : 0;
- vsub = (plane == 1 || plane == 2) ? s->vsub : 0;
- outrow = out->data[plane];
- inrow = in ->data[plane] + ((inlink->w >> hsub) - 1) * step;
- for (i = 0; i < in->height >> vsub; i++) {
+ outrow = out->data[plane] + start * out->linesize[plane];
+ inrow = in ->data[plane] + start * in->linesize[plane] + (width - 1) * step;
+ for (i = start; i < end; i++) {
switch (step) {
case 1:
- for (j = 0; j < (inlink->w >> hsub); j++)
+ for (j = 0; j < width; j++)
outrow[j] = inrow[-j];
break;
@@ -118,7 +117,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
uint16_t *outrow16 = (uint16_t *)outrow;
uint16_t * inrow16 = (uint16_t *) inrow;
- for (j = 0; j < (inlink->w >> hsub); j++)
+ for (j = 0; j < width; j++)
outrow16[j] = inrow16[-j];
}
break;
@@ -127,7 +126,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
uint8_t *in = inrow;
uint8_t *out = outrow;
- for (j = 0; j < (inlink->w >> hsub); j++, out += 3, in -= 3) {
+ for (j = 0; j < width; j++, out += 3, in -= 3) {
int32_t v = AV_RB24(in);
AV_WB24(out, v);
}
@@ -138,13 +137,13 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
uint32_t *outrow32 = (uint32_t *)outrow;
uint32_t * inrow32 = (uint32_t *) inrow;
- for (j = 0; j < (inlink->w >> hsub); j++)
+ for (j = 0; j < width; j++)
outrow32[j] = inrow32[-j];
}
break;
default:
- for (j = 0; j < (inlink->w >> hsub); j++)
+ for (j = 0; j < width; j++)
memcpy(outrow + j*step, inrow - j*step, step);
}
@@ -153,6 +152,30 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
}
}
+ return 0;
+}
+
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
+{
+ AVFilterContext *ctx = inlink->dst;
+ AVFilterLink *outlink = ctx->outputs[0];
+ ThreadData td;
+ AVFrame *out;
+
+ out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+ if (!out) {
+ av_frame_free(&in);
+ return AVERROR(ENOMEM);
+ }
+ av_frame_copy_props(out, in);
+
+ /* copy palette if required */
+ if (av_pix_fmt_desc_get(inlink->format)->flags & AV_PIX_FMT_FLAG_PAL)
+ memcpy(out->data[1], in->data[1], AVPALETTE_SIZE);
+
+ td.in = in, td.out = out;
+ ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
+
av_frame_free(&in);
return ff_filter_frame(outlink, out);
}
@@ -176,11 +199,12 @@ static const AVFilterPad avfilter_vf_hflip_outputs[] = {
};
AVFilter ff_vf_hflip = {
- .name = "hflip",
- .description = NULL_IF_CONFIG_SMALL("Horizontally flip the input video."),
- .priv_size = sizeof(FlipContext),
+ .name = "hflip",
+ .description = NULL_IF_CONFIG_SMALL("Horizontally flip the input video."),
+ .priv_size = sizeof(FlipContext),
+ .priv_class = &hflip_class,
.query_formats = query_formats,
-
- .inputs = avfilter_vf_hflip_inputs,
- .outputs = avfilter_vf_hflip_outputs,
+ .inputs = avfilter_vf_hflip_inputs,
+ .outputs = avfilter_vf_hflip_outputs,
+ .flags = AVFILTER_FLAG_SLICE_THREADS | AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-04 04:01:19 +0000