libavfilter: add vf_xfade_vulkan

This is an initial version of vf_xfade_vulkan based
on vf_xfade_opencl, for now only a subset of transitions
are supported.

Changelog

@@ -15,6 +15,7 @@ version <next>:
 - bwdif_vulkan filter
 - nlmeans_vulkan filter
 - RivaTuner video decoder
+- xfade_vulkan filter
 
 version 6.0:
 - Radiance HDR image support

configure

@@ -3825,6 +3825,7 @@ scale_vulkan_filter_deps="vulkan spirv_compiler"
 vpp_qsv_filter_deps="libmfx"
 vpp_qsv_filter_select="qsvvpp"
 xfade_opencl_filter_deps="opencl"
+xfade_vulkan_filter_deps="vulkan spirv_compiler"
 yadif_cuda_filter_deps="ffnvcodec"
 yadif_cuda_filter_deps_any="cuda_nvcc cuda_llvm"
 yadif_videotoolbox_filter_deps="metal corevideo videotoolbox"

libavfilter/Makefile

@@ -552,6 +552,7 @@ OBJS-$(CONFIG_XBR_FILTER)                    += vf_xbr.o
 OBJS-$(CONFIG_XCORRELATE_FILTER)             += vf_convolve.o framesync.o
 OBJS-$(CONFIG_XFADE_FILTER)                  += vf_xfade.o
 OBJS-$(CONFIG_XFADE_OPENCL_FILTER)           += vf_xfade_opencl.o opencl.o opencl/xfade.o
+OBJS-$(CONFIG_XFADE_VULKAN_FILTER)           += vf_xfade_vulkan.o vulkan.o vulkan_filter.o
 OBJS-$(CONFIG_XMEDIAN_FILTER)                += vf_xmedian.o framesync.o
 OBJS-$(CONFIG_XSTACK_FILTER)                 += vf_stack.o framesync.o
 OBJS-$(CONFIG_YADIF_FILTER)                  += vf_yadif.o yadif_common.o

libavfilter/allfilters.c

@@ -519,6 +519,7 @@ extern const AVFilter ff_vf_xbr;
 extern const AVFilter ff_vf_xcorrelate;
 extern const AVFilter ff_vf_xfade;
 extern const AVFilter ff_vf_xfade_opencl;
+extern const AVFilter ff_vf_xfade_vulkan;
 extern const AVFilter ff_vf_xmedian;
 extern const AVFilter ff_vf_xstack;
 extern const AVFilter ff_vf_yadif;

libavfilter/vf_xfade_vulkan.c

@@ -0,0 +1,584 @@
+/*
+ * 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.
+ *
+ * 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/avassert.h"
+#include "libavutil/random_seed.h"
+#include "libavutil/opt.h"
+#include "vulkan_filter.h"
+#include "vulkan_spirv.h"
+#include "filters.h"
+#include "internal.h"
+
+#define IN_A  0
+#define IN_B  1
+#define IN_NB 2
+
+typedef struct XFadeParameters {
+    float progress;
+} XFadeParameters;
+
+typedef struct XFadeVulkanContext {
+    FFVulkanContext     vkctx;
+
+    int                 transition;
+    int64_t             duration;
+    int64_t             offset;
+
+    int                 initialized;
+    FFVulkanPipeline    pl;
+    FFVkExecPool        e;
+    FFVkQueueFamilyCtx  qf;
+    FFVkSPIRVShader     shd;
+    VkSampler           sampler;
+
+    // PTS when the fade should start (in IN_A timebase)
+    int64_t             start_pts;
+
+    // PTS offset between IN_A and IN_B
+    int64_t             inputs_offset_pts;
+
+    // Duration of the transition
+    int64_t             duration_pts;
+
+    // Current PTS of the first input (IN_A)
+    int64_t             pts;
+
+    // If frames are currently just passed through
+    // unmodified, like before and after the actual
+    // transition.
+    int                 passthrough;
+
+    int                 status[IN_NB];
+} XFadeVulkanContext;
+
+enum XFadeTransitions {
+    FADE,
+    WIPELEFT,
+    WIPERIGHT,
+    WIPEUP,
+    WIPEDOWN,
+    SLIDEDOWN,
+    SLIDEUP,
+    SLIDELEFT,
+    SLIDERIGHT,
+    NB_TRANSITIONS,
+};
+
+static const char transition_fade[] = {
+    C(0, void transition(int idx, ivec2 pos, float progress)                   )
+    C(0, {                                                                     )
+    C(1,     vec4 a = texture(a_images[idx], pos);                             )
+    C(1,     vec4 b = texture(b_images[idx], pos);                             )
+    C(1,     imageStore(output_images[idx], pos, mix(a, b, progress));         )
+    C(0, }                                                                     )
+};
+
+static const char transition_wipeleft[] = {
+    C(0, void transition(int idx, ivec2 pos, float progress)                   )
+    C(0, {                                                                     )
+    C(1,     ivec2 size = imageSize(output_images[idx]);                       )
+    C(1,     int  s = int(size.x * (1.0 - progress));                          )
+    C(1,     vec4 a = texture(a_images[idx], pos);                             )
+    C(1,     vec4 b = texture(b_images[idx], pos);                             )
+    C(1,     imageStore(output_images[idx], pos, pos.x > s ? b : a);           )
+    C(0, }                                                                     )
+};
+
+static const char transition_wiperight[] = {
+    C(0, void transition(int idx, ivec2 pos, float progress)                   )
+    C(0, {                                                                     )
+    C(1,     ivec2 size = imageSize(output_images[idx]);                       )
+    C(1,     int  s = int(size.x * progress);                                  )
+    C(1,     vec4 a = texture(a_images[idx], pos);                             )
+    C(1,     vec4 b = texture(b_images[idx], pos);                             )
+    C(1,     imageStore(output_images[idx], pos, pos.x > s ? a : b);           )
+    C(0, }                                                                     )
+};
+
+static const char transition_wipeup[] = {
+    C(0, void transition(int idx, ivec2 pos, float progress)                   )
+    C(0, {                                                                     )
+    C(1,     ivec2 size = imageSize(output_images[idx]);                       )
+    C(1,     int  s = int(size.y * (1.0 - progress));                          )
+    C(1,     vec4 a = texture(a_images[idx], pos);                             )
+    C(1,     vec4 b = texture(b_images[idx], pos);                             )
+    C(1,     imageStore(output_images[idx], pos, pos.y > s ? b : a);           )
+    C(0, }                                                                     )
+};
+
+static const char transition_wipedown[] = {
+    C(0, void transition(int idx, ivec2 pos, float progress)                   )
+    C(0, {                                                                     )
+    C(1,     ivec2 size = imageSize(output_images[idx]);                       )
+    C(1,     int  s = int(size.y * progress);                                  )
+    C(1,     vec4 a = texture(a_images[idx], pos);                             )
+    C(1,     vec4 b = texture(b_images[idx], pos);                             )
+    C(1,     imageStore(output_images[idx], pos, pos.y > s ? a : b);           )
+    C(0, }                                                                     )
+};
+
+#define SHADER_SLIDE_COMMON                                                              \
+    C(0, void slide(int idx, ivec2 pos, float progress, ivec2 direction)               ) \
+    C(0, {                                                                             ) \
+    C(1,     ivec2 size = imageSize(output_images[idx]);                               ) \
+    C(1,     ivec2 pi = ivec2(progress * size);                                        ) \
+    C(1,     ivec2 p = pos + pi * direction;                                           ) \
+    C(1,     ivec2 f = p % size;                                                       ) \
+    C(1,     f = f + size * ivec2(f.x < 0, f.y < 0);                                   ) \
+    C(1,     vec4 a = texture(a_images[idx], f);                                       ) \
+    C(1,     vec4 b = texture(b_images[idx], f);                                       ) \
+    C(1,     vec4 r = (p.y >= 0 && p.x >= 0 && size.y > p.y &&  size.x > p.x) ? a : b; ) \
+    C(1,     imageStore(output_images[idx], pos, r);                                   ) \
+    C(0, }                                                                             )
+
+static const char transition_slidedown[] = {
+    SHADER_SLIDE_COMMON
+    C(0, void transition(int idx, ivec2 pos, float progress)                   )
+    C(0, {                                                                     )
+    C(1,     slide(idx, pos, progress, ivec2(0, -1));                          )
+    C(0, }                                                                     )
+};
+
+static const char transition_slideup[] = {
+    SHADER_SLIDE_COMMON
+    C(0, void transition(int idx, ivec2 pos, float progress)                   )
+    C(0, {                                                                     )
+    C(1,     slide(idx, pos, progress, ivec2(0, +1));                          )
+    C(0, }                                                                     )
+};
+
+static const char transition_slideleft[] = {
+    SHADER_SLIDE_COMMON
+    C(0, void transition(int idx, ivec2 pos, float progress)                   )
+    C(0, {                                                                     )
+    C(1,     slide(idx, pos, progress, ivec2(+1, 0));                          )
+    C(0, }                                                                     )
+};
+
+static const char transition_slideright[] = {
+    SHADER_SLIDE_COMMON
+    C(0, void transition(int idx, ivec2 pos, float progress)                   )
+    C(0, {                                                                     )
+    C(1,     slide(idx, pos, progress, ivec2(-1, 0));                          )
+    C(0, }                                                                     )
+};
+
+static const char* transitions_map[NB_TRANSITIONS] = {
+    [FADE]      = transition_fade,
+    [WIPELEFT]  = transition_wipeleft,
+    [WIPERIGHT] = transition_wiperight,
+    [WIPEUP]    = transition_wipeup,
+    [WIPEDOWN]  = transition_wipedown,
+    [SLIDEDOWN] = transition_slidedown,
+    [SLIDEUP]   = transition_slideup,
+    [SLIDELEFT] = transition_slideleft,
+    [SLIDERIGHT]= transition_slideright,
+};
+
+static av_cold int init_vulkan(AVFilterContext *avctx)
+{
+    int err = 0;
+    uint8_t *spv_data;
+    size_t spv_len;
+    void *spv_opaque = NULL;
+    XFadeVulkanContext *s = avctx->priv;
+    FFVulkanContext *vkctx = &s->vkctx;
+    const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
+    FFVkSPIRVShader *shd = &s->shd;
+    FFVkSPIRVCompiler *spv;
+    FFVulkanDescriptorSetBinding *desc;
+
+    spv = ff_vk_spirv_init();
+    if (!spv) {
+        av_log(avctx, AV_LOG_ERROR, "Unable to initialize SPIR-V compiler!\n");
+        return AVERROR_EXTERNAL;
+    }
+
+    ff_vk_qf_init(vkctx, &s->qf, VK_QUEUE_COMPUTE_BIT);
+    RET(ff_vk_exec_pool_init(vkctx, &s->qf, &s->e, s->qf.nb_queues*4, 0, 0, 0, NULL));
+    RET(ff_vk_init_sampler(vkctx, &s->sampler, 1, VK_FILTER_NEAREST));
+    RET(ff_vk_shader_init(&s->pl, &s->shd, "xfade_compute",
+                          VK_SHADER_STAGE_COMPUTE_BIT, 0));
+
+    ff_vk_shader_set_compute_sizes(&s->shd, 32, 32, 1);
+
+    desc = (FFVulkanDescriptorSetBinding []) {
+        {
+            .name       = "a_images",
+            .type       = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
+            .dimensions = 2,
+            .elems      = planes,
+            .stages     = VK_SHADER_STAGE_COMPUTE_BIT,
+            .samplers   = DUP_SAMPLER(s->sampler),
+        },
+        {
+            .name       = "b_images",
+            .type       = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
+            .dimensions = 2,
+            .elems      = planes,
+            .stages     = VK_SHADER_STAGE_COMPUTE_BIT,
+            .samplers   = DUP_SAMPLER(s->sampler),
+        },
+        {
+            .name       = "output_images",
+            .type       = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
+            .mem_layout = ff_vk_shader_rep_fmt(s->vkctx.output_format),
+            .mem_quali  = "writeonly",
+            .dimensions = 2,
+            .elems      = planes,
+            .stages     = VK_SHADER_STAGE_COMPUTE_BIT,
+        },
+    };
+
+    RET(ff_vk_pipeline_descriptor_set_add(vkctx, &s->pl, shd, desc, 3, 0, 0));
+
+    GLSLC(0, layout(push_constant, std430) uniform pushConstants {                 );
+    GLSLC(1,    float progress;                                                    );
+    GLSLC(0, };                                                                    );
+
+    ff_vk_add_push_constant(&s->pl, 0, sizeof(XFadeParameters),
+                            VK_SHADER_STAGE_COMPUTE_BIT);
+
+    // Add the right transition type function to the shader
+    GLSLD(transitions_map[s->transition]);
+
+    GLSLC(0, void main()                                                  );
+    GLSLC(0, {                                                            );
+    GLSLC(1,     ivec2 pos = ivec2(gl_GlobalInvocationID.xy);             );
+    GLSLF(1,     int planes = %i;                                  ,planes);
+    GLSLC(1,     for (int i = 0; i < planes; i++) {                       );
+    GLSLC(2,        transition(i, pos, progress);                         );
+    GLSLC(1,     }                                                        );
+    GLSLC(0, }                                                            );
+
+    RET(spv->compile_shader(spv, avctx, shd, &spv_data, &spv_len, "main",
+                            &spv_opaque));
+    RET(ff_vk_shader_create(vkctx, shd, spv_data, spv_len, "main"));
+
+    RET(ff_vk_init_compute_pipeline(vkctx, &s->pl, shd));
+    RET(ff_vk_exec_pipeline_register(vkctx, &s->e, &s->pl));
+
+    s->initialized = 1;
+
+fail:
+    if (spv_opaque)
+        spv->free_shader(spv, &spv_opaque);
+    if (spv)
+        spv->uninit(&spv);
+
+    return err;
+}
+
+static int xfade_frame(AVFilterContext *avctx, AVFrame *frame_a, AVFrame *frame_b)
+{
+    int err;
+    AVFilterLink *outlink = avctx->outputs[0];
+    XFadeVulkanContext *s = avctx->priv;
+    float progress;
+
+    AVFrame *output = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+    if (!output) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    if (!s->initialized) {
+        AVHWFramesContext *a_fc = (AVHWFramesContext*)frame_a->hw_frames_ctx->data;
+        AVHWFramesContext *b_fc = (AVHWFramesContext*)frame_b->hw_frames_ctx->data;
+        if (a_fc->sw_format != b_fc->sw_format) {
+            av_log(avctx, AV_LOG_ERROR,
+                   "Currently the sw format of the first input needs to match the second!\n");
+            return AVERROR(EINVAL);
+        }
+        RET(init_vulkan(avctx));
+    }
+
+    RET(av_frame_copy_props(output, frame_a));
+    output->pts = s->pts;
+
+    progress = av_clipf((float)(s->pts - s->start_pts) / s->duration_pts,
+                        0.f, 1.f);
+
+    RET(ff_vk_filter_process_Nin(&s->vkctx, &s->e, &s->pl, output,
+                                 (AVFrame *[]){ frame_a, frame_b }, 2, s->sampler,
+                                 &(XFadeParameters){ progress }, sizeof(XFadeParameters)));
+
+    return ff_filter_frame(outlink, output);
+
+fail:
+    av_frame_free(&output);
+    return err;
+}
+
+static int config_props_output(AVFilterLink *outlink)
+{
+    int err;
+    AVFilterContext *avctx = outlink->src;
+    XFadeVulkanContext *s = avctx->priv;
+    AVFilterLink *inlink_a = avctx->inputs[IN_A];
+    AVFilterLink *inlink_b = avctx->inputs[IN_B];
+
+    if (inlink_a->w != inlink_b->w || inlink_a->h != inlink_b->h) {
+        av_log(avctx, AV_LOG_ERROR, "First input link %s parameters "
+               "(size %dx%d) do not match the corresponding "
+               "second input link %s parameters (size %dx%d)\n",
+               avctx->input_pads[IN_A].name, inlink_a->w, inlink_a->h,
+               avctx->input_pads[IN_B].name, inlink_b->w, inlink_b->h);
+        return AVERROR(EINVAL);
+    }
+
+    if (inlink_a->time_base.num != inlink_b->time_base.num ||
+        inlink_a->time_base.den != inlink_b->time_base.den) {
+        av_log(avctx, AV_LOG_ERROR, "First input link %s timebase "
+               "(%d/%d) does not match the corresponding "
+               "second input link %s timebase (%d/%d)\n",
+               avctx->input_pads[IN_A].name, inlink_a->time_base.num, inlink_a->time_base.den,
+               avctx->input_pads[IN_B].name, inlink_b->time_base.num, inlink_b->time_base.den);
+        return AVERROR(EINVAL);
+    }
+
+    s->start_pts = s->inputs_offset_pts = AV_NOPTS_VALUE;
+
+    outlink->time_base = inlink_a->time_base;
+    outlink->frame_rate = inlink_a->frame_rate;
+    outlink->sample_aspect_ratio = inlink_a->sample_aspect_ratio;
+
+    if (s->duration)
+        s->duration_pts = av_rescale_q(s->duration, AV_TIME_BASE_Q, inlink_a->time_base);
+    RET(ff_vk_filter_config_output(outlink));
+
+fail:
+    return err;
+}
+
+static int forward_frame(XFadeVulkanContext *s,
+                         AVFilterLink *inlink, AVFilterLink *outlink)
+{
+    int64_t status_pts;
+    int ret = 0, status;
+    AVFrame *frame = NULL;
+
+    ret = ff_inlink_consume_frame(inlink, &frame);
+    if (ret < 0)
+        return ret;
+
+    if (ret > 0) {
+        // If we do not have an offset yet, it's because we
+        // never got a first input. Just offset to 0
+        if (s->inputs_offset_pts == AV_NOPTS_VALUE)
+            s->inputs_offset_pts = -frame->pts;
+
+        // We got a frame, nothing to do other than adjusting the timestamp
+        frame->pts += s->inputs_offset_pts;
+        return ff_filter_frame(outlink, frame);
+    }
+
+    // Forward status with our timestamp
+    if (ff_inlink_acknowledge_status(inlink, &status, &status_pts)) {
+        if (s->inputs_offset_pts == AV_NOPTS_VALUE)
+            s->inputs_offset_pts = -status_pts;
+
+        ff_outlink_set_status(outlink, status, status_pts + s->inputs_offset_pts);
+        return 0;
+    }
+
+    // No frame available, request one if needed
+    if (ff_outlink_frame_wanted(outlink))
+        ff_inlink_request_frame(inlink);
+
+    return 0;
+}
+
+static int activate(AVFilterContext *avctx)
+{
+    XFadeVulkanContext *s = avctx->priv;
+    AVFilterLink *in_a = avctx->inputs[IN_A];
+    AVFilterLink *in_b = avctx->inputs[IN_B];
+    AVFilterLink *outlink = avctx->outputs[0];
+    int64_t status_pts;
+
+    FF_FILTER_FORWARD_STATUS_BACK_ALL(outlink, avctx);
+
+    // Check if we already transitioned or IN_A ended prematurely,
+    // in which case just forward the frames from IN_B with adjusted
+    // timestamps until EOF.
+    if (s->status[IN_A] && !s->status[IN_B])
+        return forward_frame(s, in_b, outlink);
+
+    // We did not finish transitioning yet and the first stream
+    // did not end either, so check if there are more frames to consume.
+    if (ff_inlink_check_available_frame(in_a)) {
+        AVFrame *peeked_frame = ff_inlink_peek_frame(in_a, 0);
+        s->pts = peeked_frame->pts;
+
+        if (s->start_pts == AV_NOPTS_VALUE)
+            s->start_pts =
+                s->pts + av_rescale_q(s->offset, AV_TIME_BASE_Q, in_a->time_base);
+
+        // Check if we are not yet transitioning, in which case
+        // just request and forward the input frame.
+        if (s->start_pts > s->pts) {
+            AVFrame *frame_a = NULL;
+            s->passthrough = 1;
+            ff_inlink_consume_frame(in_a, &frame_a);
+            return ff_filter_frame(outlink, frame_a);
+        }
+        s->passthrough = 0;
+
+        // We are transitioning, so we need a frame from IN_B
+        if (ff_inlink_check_available_frame(in_b)) {
+            int ret;
+            AVFrame *frame_a = NULL, *frame_b = NULL;
+            ff_inlink_consume_frame(avctx->inputs[IN_A], &frame_a);
+            ff_inlink_consume_frame(avctx->inputs[IN_B], &frame_b);
+
+            // Calculate PTS offset to first input
+            if (s->inputs_offset_pts == AV_NOPTS_VALUE)
+                s->inputs_offset_pts = s->pts - frame_b->pts;
+
+            // Check if we finished transitioning, in which case we
+            // report back EOF to IN_A as it is no longer needed.
+            if (s->pts - s->start_pts > s->duration_pts) {
+                s->status[IN_A] = AVERROR_EOF;
+                ff_inlink_set_status(in_a, AVERROR_EOF);
+                s->passthrough = 1;
+            }
+            ret = xfade_frame(avctx, frame_a, frame_b);
+            av_frame_free(&frame_a);
+            av_frame_free(&frame_b);
+            return ret;
+        }
+
+        // We did not get a frame from IN_B, check its status.
+        if (ff_inlink_acknowledge_status(in_b, &s->status[IN_B], &status_pts)) {
+            // We should transition, but IN_B is EOF so just report EOF output now.
+            ff_outlink_set_status(outlink, s->status[IN_B], s->pts);
+            return 0;
+        }
+
+        // We did not get a frame for IN_B but no EOF either, so just request more.
+        if (ff_outlink_frame_wanted(outlink)) {
+            ff_inlink_request_frame(in_b);
+            return 0;
+        }
+    }
+
+    // We did not get a frame from IN_A, check its status.
+    if (ff_inlink_acknowledge_status(in_a, &s->status[IN_A], &status_pts)) {
+        // No more frames from IN_A, do not report EOF though, we will just
+        // forward the IN_B frames in the next activate calls.
+        s->passthrough = 1;
+        ff_filter_set_ready(avctx, 100);
+        return 0;
+    }
+
+    // We have no frames yet from IN_A and no EOF, so request some.
+    if (ff_outlink_frame_wanted(outlink)) {
+        ff_inlink_request_frame(in_a);
+        return 0;
+    }
+
+    return FFERROR_NOT_READY;
+}
+
+static av_cold void uninit(AVFilterContext *avctx)
+{
+    XFadeVulkanContext *s = avctx->priv;
+    FFVulkanContext *vkctx = &s->vkctx;
+    FFVulkanFunctions *vk = &vkctx->vkfn;
+
+    ff_vk_exec_pool_free(vkctx, &s->e);
+    ff_vk_pipeline_free(vkctx, &s->pl);
+    ff_vk_shader_free(vkctx, &s->shd);
+
+    if (s->sampler)
+        vk->DestroySampler(vkctx->hwctx->act_dev, s->sampler,
+                           vkctx->hwctx->alloc);
+
+    ff_vk_uninit(&s->vkctx);
+
+    s->initialized = 0;
+}
+
+static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h)
+{
+    XFadeVulkanContext *s = inlink->dst->priv;
+
+    return s->passthrough ?
+        ff_null_get_video_buffer   (inlink, w, h) :
+        ff_default_get_video_buffer(inlink, w, h);
+}
+
+#define OFFSET(x) offsetof(XFadeVulkanContext, x)
+#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
+
+static const AVOption xfade_vulkan_options[] = {
+    { "transition", "set cross fade transition", OFFSET(transition), AV_OPT_TYPE_INT, {.i64=FADE}, 0, NB_TRANSITIONS-1, FLAGS, "transition" },
+        { "fade",      "fade transition", 0, AV_OPT_TYPE_CONST, {.i64=FADE}, 0, 0, FLAGS, "transition" },
+        { "wipeleft",  "wipe left transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPELEFT}, 0, 0, FLAGS, "transition" },
+        { "wiperight", "wipe right transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPERIGHT}, 0, 0, FLAGS, "transition" },
+        { "wipeup",    "wipe up transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEUP}, 0, 0, FLAGS, "transition" },
+        { "wipedown",  "wipe down transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPEDOWN}, 0, 0, FLAGS, "transition" },
+        { "slidedown", "slide down transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDEDOWN}, 0, 0, FLAGS, "transition" },
+        { "slideup",   "slide up transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDEUP}, 0, 0, FLAGS, "transition" },
+        { "slideleft", "slide left transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDELEFT}, 0, 0, FLAGS, "transition" },
+        { "slideright","slide right transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDERIGHT}, 0, 0, FLAGS, "transition" },
+    { "duration", "set cross fade duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=1000000}, 0, 60000000, FLAGS },
+    { "offset",   "set cross fade start relative to first input stream", OFFSET(offset), AV_OPT_TYPE_DURATION, {.i64=0}, INT64_MIN, INT64_MAX, FLAGS },
+    { NULL }
+};
+
+AVFILTER_DEFINE_CLASS(xfade_vulkan);
+
+static const AVFilterPad xfade_vulkan_inputs[] = {
+    {
+        .name             = "main",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_buffer.video = &get_video_buffer,
+        .config_props     = &ff_vk_filter_config_input,
+    },
+    {
+        .name             = "xfade",
+        .type             = AVMEDIA_TYPE_VIDEO,
+        .get_buffer.video = &get_video_buffer,
+        .config_props     = &ff_vk_filter_config_input,
+    },
+};
+
+static const AVFilterPad xfade_vulkan_outputs[] = {
+    {
+        .name          = "default",
+        .type          = AVMEDIA_TYPE_VIDEO,
+        .config_props  = &config_props_output,
+    },
+};
+
+const AVFilter ff_vf_xfade_vulkan = {
+    .name            = "xfade_vulkan",
+    .description     = NULL_IF_CONFIG_SMALL("Cross fade one video with another video."),
+    .priv_size       = sizeof(XFadeVulkanContext),
+    .init            = &ff_vk_filter_init,
+    .uninit          = &uninit,
+    .activate        = &activate,
+    FILTER_INPUTS(xfade_vulkan_inputs),
+    FILTER_OUTPUTS(xfade_vulkan_outputs),
+    FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN),
+    .priv_class      = &xfade_vulkan_class,
+    .flags_internal  = FF_FILTER_FLAG_HWFRAME_AWARE,
+    .flags           = AVFILTER_FLAG_HWDEVICE,
+};