* horizontal flip filter
*/
+#include <string.h>
+
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"
#include "libavutil/pixdesc.h"
+#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h"
static int query_formats(AVFilterContext *ctx)
{
- static const enum PixelFormat pix_fmts[] = {
- PIX_FMT_RGB48BE, PIX_FMT_RGB48LE,
- PIX_FMT_BGR48BE, PIX_FMT_BGR48LE,
- PIX_FMT_ARGB, PIX_FMT_RGBA,
- PIX_FMT_ABGR, PIX_FMT_BGRA,
- PIX_FMT_RGB24, PIX_FMT_BGR24,
- PIX_FMT_RGB565BE, PIX_FMT_RGB565LE,
- PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
- PIX_FMT_BGR565BE, PIX_FMT_BGR565LE,
- PIX_FMT_BGR555BE, PIX_FMT_BGR555LE,
- PIX_FMT_GRAY16BE, PIX_FMT_GRAY16LE,
- PIX_FMT_YUV420P16LE, PIX_FMT_YUV420P16BE,
- PIX_FMT_YUV422P16LE, PIX_FMT_YUV422P16BE,
- PIX_FMT_YUV444P16LE, PIX_FMT_YUV444P16BE,
- PIX_FMT_YUV444P, PIX_FMT_YUV422P,
- PIX_FMT_YUV420P, PIX_FMT_YUV411P,
- PIX_FMT_YUV410P, PIX_FMT_YUV440P,
- PIX_FMT_YUVJ444P, PIX_FMT_YUVJ422P,
- PIX_FMT_YUVJ420P, PIX_FMT_YUVJ440P,
- PIX_FMT_YUVA420P,
- PIX_FMT_RGB8, PIX_FMT_BGR8,
- PIX_FMT_RGB4_BYTE, PIX_FMT_BGR4_BYTE,
- PIX_FMT_PAL8, PIX_FMT_GRAY8,
- PIX_FMT_NONE
+ 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));
static int config_props(AVFilterLink *inlink)
{
- FlipContext *flip = inlink->dst->priv;
- const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[inlink->format];
+ FlipContext *s = inlink->dst->priv;
+ const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
- av_image_fill_max_pixsteps(flip->max_step, NULL, pix_desc);
- flip->hsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_w;
- flip->vsub = av_pix_fmt_descriptors[inlink->format].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;
return 0;
}
-static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
- FlipContext *flip = inlink->dst->priv;
- AVFilterBufferRef *inpic = inlink->cur_buf;
- AVFilterBufferRef *outpic = inlink->dst->outputs[0]->out_buf;
+ AVFilterContext *ctx = inlink->dst;
+ FlipContext *s = ctx->priv;
+ AVFilterLink *outlink = ctx->outputs[0];
+ AVFrame *out;
uint8_t *inrow, *outrow;
int i, j, plane, step, hsub, vsub;
- for (plane = 0; plane < 4 && inpic->data[plane]; plane++) {
- step = flip->max_step[plane];
- hsub = (plane == 1 || plane == 2) ? flip->hsub : 0;
- vsub = (plane == 1 || plane == 2) ? flip->vsub : 0;
+ 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]; plane++) {
+ step = s->max_step[plane];
+ hsub = (plane == 1 || plane == 2) ? s->hsub : 0;
+ vsub = (plane == 1 || plane == 2) ? s->vsub : 0;
- outrow = outpic->data[plane] + (y>>vsub) * outpic->linesize[plane];
- inrow = inpic ->data[plane] + (y>>vsub) * inpic ->linesize[plane] + ((inlink->w >> hsub) - 1) * step;
- for (i = 0; i < h>>vsub; i++) {
+ outrow = out->data[plane];
+ inrow = in ->data[plane] + ((inlink->w >> hsub) - 1) * step;
+ for (i = 0; i < in->height >> vsub; i++) {
switch (step) {
case 1:
for (j = 0; j < (inlink->w >> hsub); j++)
memcpy(outrow + j*step, inrow - j*step, step);
}
- inrow += inpic ->linesize[plane];
- outrow += outpic->linesize[plane];
+ inrow += in ->linesize[plane];
+ outrow += out->linesize[plane];
}
}
- ff_draw_slice(inlink->dst->outputs[0], y, h, slice_dir);
+ av_frame_free(&in);
+ return ff_filter_frame(outlink, out);
}
+static const AVFilterPad avfilter_vf_hflip_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .filter_frame = filter_frame,
+ .config_props = config_props,
+ },
+ { NULL }
+};
+
+static const AVFilterPad avfilter_vf_hflip_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ },
+ { NULL }
+};
+
AVFilter avfilter_vf_hflip = {
.name = "hflip",
.description = NULL_IF_CONFIG_SMALL("Horizontally flip the input video."),
.priv_size = sizeof(FlipContext),
.query_formats = query_formats,
- .inputs = (const AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .draw_slice = draw_slice,
- .config_props = config_props,
- .min_perms = AV_PERM_READ, },
- { .name = NULL}},
- .outputs = (const AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO, },
- { .name = NULL}},
+ .inputs = avfilter_vf_hflip_inputs,
+ .outputs = avfilter_vf_hflip_outputs,
};
projects / ffmpeg / blobdiff