#include <stdio.h>
-#include "libavutil/intreadwrite.h"
-#include "libavutil/pixdesc.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
+
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"
-typedef struct {
+enum TransposeDir {
+ TRANSPOSE_CCLOCK_FLIP,
+ TRANSPOSE_CLOCK,
+ TRANSPOSE_CCLOCK,
+ TRANSPOSE_CLOCK_FLIP,
+};
+
+typedef struct TransContext {
+ const AVClass *class;
int hsub, vsub;
int pixsteps[4];
- /* 0 Rotate by 90 degrees counterclockwise and vflip. */
- /* 1 Rotate by 90 degrees clockwise. */
- /* 2 Rotate by 90 degrees counterclockwise. */
- /* 3 Rotate by 90 degrees clockwise and vflip. */
- int dir;
+ enum TransposeDir dir;
} TransContext;
-static av_cold int init(AVFilterContext *ctx, const char *args)
-{
- TransContext *trans = ctx->priv;
- trans->dir = 0;
-
- if (args)
- sscanf(args, "%d", &trans->dir);
-
- if (trans->dir < 0 || trans->dir > 3) {
- av_log(ctx, AV_LOG_ERROR, "Invalid value %d not between 0 and 3.\n",
- trans->dir);
- return AVERROR(EINVAL);
- }
- return 0;
-}
-
static int query_formats(AVFilterContext *ctx)
{
enum AVPixelFormat pix_fmts[] = {
outlink->w = inlink->h;
outlink->h = inlink->w;
- if (inlink->sample_aspect_ratio.num){
- outlink->sample_aspect_ratio = av_div_q((AVRational){1,1}, inlink->sample_aspect_ratio);
- } else
+ if (inlink->sample_aspect_ratio.num)
+ outlink->sample_aspect_ratio = av_div_q((AVRational) { 1, 1 },
+ inlink->sample_aspect_ratio);
+ else
outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
- av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d dir:%d -> w:%d h:%d rotation:%s vflip:%d\n",
+ av_log(ctx, AV_LOG_VERBOSE,
+ "w:%d h:%d dir:%d -> w:%d h:%d rotation:%s vflip:%d\n",
inlink->w, inlink->h, trans->dir, outlink->w, outlink->h,
trans->dir == 1 || trans->dir == 3 ? "clockwise" : "counterclockwise",
trans->dir == 0 || trans->dir == 3);
return 0;
}
-static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *in)
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterLink *outlink = inlink->dst->outputs[0];
TransContext *trans = inlink->dst->priv;
- AVFilterBufferRef *out;
+ AVFrame *out;
int plane;
- out = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
+ out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
- avfilter_unref_bufferp(&in);
+ av_frame_free(&in);
return AVERROR(ENOMEM);
}
out->pts = in->pts;
- if (in->video->pixel_aspect.num == 0) {
- out->video->pixel_aspect = in->video->pixel_aspect;
+ if (in->sample_aspect_ratio.num == 0) {
+ out->sample_aspect_ratio = in->sample_aspect_ratio;
} else {
- out->video->pixel_aspect.num = in->video->pixel_aspect.den;
- out->video->pixel_aspect.den = in->video->pixel_aspect.num;
+ out->sample_aspect_ratio.num = in->sample_aspect_ratio.den;
+ out->sample_aspect_ratio.den = in->sample_aspect_ratio.num;
}
for (plane = 0; out->data[plane]; plane++) {
- int hsub = plane == 1 || plane == 2 ? trans->hsub : 0;
- int vsub = plane == 1 || plane == 2 ? trans->vsub : 0;
+ int hsub = plane == 1 || plane == 2 ? trans->hsub : 0;
+ int vsub = plane == 1 || plane == 2 ? trans->vsub : 0;
int pixstep = trans->pixsteps[plane];
- int inh = in->video->h>>vsub;
- int outw = out->video->w>>hsub;
- int outh = out->video->h>>vsub;
+ int inh = in->height >> vsub;
+ int outw = out->width >> hsub;
+ int outh = out->height >> vsub;
uint8_t *dst, *src;
int dstlinesize, srclinesize;
int x, y;
- dst = out->data[plane];
+ dst = out->data[plane];
dstlinesize = out->linesize[plane];
- src = in->data[plane];
+ src = in->data[plane];
srclinesize = in->linesize[plane];
- if (trans->dir&1) {
- src += in->linesize[plane] * (inh-1);
+ if (trans->dir & 1) {
+ src += in->linesize[plane] * (inh - 1);
srclinesize *= -1;
}
- if (trans->dir&2) {
- dst += out->linesize[plane] * (outh-1);
+ if (trans->dir & 2) {
+ dst += out->linesize[plane] * (outh - 1);
dstlinesize *= -1;
}
switch (pixstep) {
case 1:
for (x = 0; x < outw; x++)
- dst[x] = src[x*srclinesize + y];
+ dst[x] = src[x * srclinesize + y];
break;
case 2:
for (x = 0; x < outw; x++)
- *((uint16_t *)(dst + 2*x)) = *((uint16_t *)(src + x*srclinesize + y*2));
+ *((uint16_t *)(dst + 2 * x)) =
+ *((uint16_t *)(src + x * srclinesize + y * 2));
break;
case 3:
for (x = 0; x < outw; x++) {
- int32_t v = AV_RB24(src + x*srclinesize + y*3);
- AV_WB24(dst + 3*x, v);
+ int32_t v = AV_RB24(src + x * srclinesize + y * 3);
+ AV_WB24(dst + 3 * x, v);
}
break;
case 4:
for (x = 0; x < outw; x++)
- *((uint32_t *)(dst + 4*x)) = *((uint32_t *)(src + x*srclinesize + y*4));
+ *((uint32_t *)(dst + 4 * x)) =
+ *((uint32_t *)(src + x * srclinesize + y * 4));
break;
}
dst += dstlinesize;
}
}
- avfilter_unref_bufferp(&in);
+ av_frame_free(&in);
return ff_filter_frame(outlink, out);
}
+#define OFFSET(x) offsetof(TransContext, x)
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
+static const AVOption options[] = {
+ { "dir", "Transpose direction", OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP },
+ TRANSPOSE_CCLOCK_FLIP, TRANSPOSE_CLOCK_FLIP, FLAGS, "dir" },
+ { "cclock_flip", "counter-clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .unit = "dir" },
+ { "clock", "clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK }, .unit = "dir" },
+ { "cclock", "counter-clockwise", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK }, .unit = "dir" },
+ { "clock_flip", "clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP }, .unit = "dir" },
+ { NULL },
+};
+
+static const AVClass transpose_class = {
+ .class_name = "transpose",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
static const AVFilterPad avfilter_vf_transpose_inputs[] = {
{
- .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
- .min_perms = AV_PERM_READ,
},
{ NULL }
};
{ NULL }
};
-AVFilter avfilter_vf_transpose = {
- .name = "transpose",
- .description = NULL_IF_CONFIG_SMALL("Transpose input video."),
-
- .init = init,
- .priv_size = sizeof(TransContext),
-
+AVFilter ff_vf_transpose = {
+ .name = "transpose",
+ .description = NULL_IF_CONFIG_SMALL("Transpose input video."),
+ .priv_size = sizeof(TransContext),
+ .priv_class = &transpose_class,
.query_formats = query_formats,
-
- .inputs = avfilter_vf_transpose_inputs,
- .outputs = avfilter_vf_transpose_outputs,
+ .inputs = avfilter_vf_transpose_inputs,
+ .outputs = avfilter_vf_transpose_outputs,
};
projects / ffmpeg / blobdiff