libavfilter: add transpose_vaapi filter

Swap width and height when do clock/cclock rotation
Add reversal/hflip/vflip options

ffmpeg -hwaccel vaapi -vaapi_device /dev/dri/renderD128
-hwaccel_output_format vaapi -i input.264 -vf "transpose_vaapi=clock_flip"
-c:v h264_vaapi output.h264

Signed-off-by: Zachary Zhou <zachary.zhou@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>

4 files changed, 324 insertions, 0 deletions

diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 8283389f6e..bc642acb01 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -396,6 +396,7 @@ OBJS-$(CONFIG_TPAD_FILTER)                   += vf_tpad.o
 OBJS-$(CONFIG_TRANSPOSE_FILTER)              += vf_transpose.o
 OBJS-$(CONFIG_TRANSPOSE_NPP_FILTER)          += vf_transpose_npp.o cuda_check.o
 OBJS-$(CONFIG_TRANSPOSE_OPENCL_FILTER)       += vf_transpose_opencl.o opencl.o opencl/transpose.o
+OBJS-$(CONFIG_TRANSPOSE_VAAPI_FILTER)        += vf_transpose_vaapi.o vaapi_vpp.o
 OBJS-$(CONFIG_TRIM_FILTER)                   += trim.o
 OBJS-$(CONFIG_UNPREMULTIPLY_FILTER)          += vf_premultiply.o framesync.o
 OBJS-$(CONFIG_UNSHARP_FILTER)                += vf_unsharp.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index b91cff2ce7..c51ae0f3c7 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -375,6 +375,7 @@ extern AVFilter ff_vf_tpad;
 extern AVFilter ff_vf_transpose;
 extern AVFilter ff_vf_transpose_npp;
 extern AVFilter ff_vf_transpose_opencl;
+extern AVFilter ff_vf_transpose_vaapi;
 extern AVFilter ff_vf_trim;
 extern AVFilter ff_vf_unpremultiply;
 extern AVFilter ff_vf_unsharp;
diff --git a/libavfilter/transpose.h b/libavfilter/transpose.h
index d4bb4da1ae..aa262b9487 100644
--- a/libavfilter/transpose.h
+++ b/libavfilter/transpose.h
@@ -29,6 +29,9 @@ enum TransposeDir {
     TRANSPOSE_CLOCK,
     TRANSPOSE_CCLOCK,
     TRANSPOSE_CLOCK_FLIP,
+    TRANSPOSE_REVERSAL,    // rotate by half-turn
+    TRANSPOSE_HFLIP,
+    TRANSPOSE_VFLIP,
 };
 
 #endif
diff --git a/libavfilter/vf_transpose_vaapi.c b/libavfilter/vf_transpose_vaapi.c
new file mode 100644
index 0000000000..0e2acc9983
--- /dev/null
+++ b/libavfilter/vf_transpose_vaapi.c
@@ -0,0 +1,319 @@
+/*
+ * 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 <string.h>
+
+#include "libavutil/avassert.h"
+#include "libavutil/mem.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
+
+#include "avfilter.h"
+#include "formats.h"
+#include "internal.h"
+#include "transpose.h"
+#include "vaapi_vpp.h"
+
+typedef struct TransposeVAAPIContext {
+    VAAPIVPPContext vpp_ctx; // must be the first field
+    int passthrough;         // PassthroughType, landscape passthrough mode enabled
+    int dir;                 // TransposeDir
+
+    int rotation_state;
+    int mirror_state;
+} TransposeVAAPIContext;
+
+static int transpose_vaapi_build_filter_params(AVFilterContext *avctx)
+{
+    VAAPIVPPContext *vpp_ctx   = avctx->priv;
+    TransposeVAAPIContext *ctx = avctx->priv;
+    VAStatus vas;
+    int support_flag;
+    VAProcPipelineCaps pipeline_caps;
+
+    memset(&pipeline_caps, 0, sizeof(pipeline_caps));
+    vas = vaQueryVideoProcPipelineCaps(vpp_ctx->hwctx->display,
+                                       vpp_ctx->va_context,
+                                       NULL, 0,
+                                       &pipeline_caps);
+    if (vas != VA_STATUS_SUCCESS) {
+        av_log(avctx, AV_LOG_ERROR, "Failed to query pipeline "
+               "caps: %d (%s).\n", vas, vaErrorStr(vas));
+        return AVERROR(EIO);
+    }
+
+    if (!pipeline_caps.rotation_flags) {
+        av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support transpose\n");
+        return AVERROR(EINVAL);
+    }
+
+    switch (ctx->dir) {
+    case TRANSPOSE_CCLOCK_FLIP:
+        ctx->rotation_state = VA_ROTATION_270;
+        ctx->mirror_state   = VA_MIRROR_VERTICAL;
+        break;
+    case TRANSPOSE_CLOCK:
+        ctx->rotation_state = VA_ROTATION_90;
+        ctx->mirror_state   = VA_MIRROR_NONE;
+        break;
+    case TRANSPOSE_CCLOCK:
+        ctx->rotation_state = VA_ROTATION_270;
+        ctx->mirror_state   = VA_MIRROR_NONE;
+        break;
+    case TRANSPOSE_CLOCK_FLIP:
+        ctx->rotation_state = VA_ROTATION_90;
+        ctx->mirror_state   = VA_MIRROR_VERTICAL;
+        break;
+    case TRANSPOSE_REVERSAL:
+        ctx->rotation_state = VA_ROTATION_180;
+        ctx->mirror_state   = VA_MIRROR_NONE;
+        break;
+    case TRANSPOSE_HFLIP:
+        ctx->rotation_state = VA_ROTATION_NONE;
+        ctx->mirror_state   = VA_MIRROR_HORIZONTAL;
+        break;
+    case TRANSPOSE_VFLIP:
+        ctx->rotation_state = VA_ROTATION_NONE;
+        ctx->mirror_state   = VA_MIRROR_VERTICAL;
+        break;
+    default:
+        av_log(avctx, AV_LOG_ERROR, "Failed to set direction to %d\n", ctx->dir);
+        return AVERROR(EINVAL);
+    }
+
+    if (VA_ROTATION_NONE != ctx->rotation_state) {
+        support_flag = pipeline_caps.rotation_flags & (1 << ctx->rotation_state);
+        if (!support_flag) {
+            av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support rotation %d\n",
+                   ctx->rotation_state);
+            return AVERROR(EINVAL);
+        }
+    }
+
+    if (VA_MIRROR_NONE != ctx->mirror_state) {
+        support_flag = pipeline_caps.mirror_flags & ctx->mirror_state;
+        if (!support_flag) {
+            av_log(avctx, AV_LOG_ERROR, "VAAPI driver doesn't support mirror %d\n",
+                   ctx->mirror_state);
+            return AVERROR(EINVAL);
+        }
+    }
+
+    return 0;
+}
+
+static int transpose_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame)
+{
+    AVFilterContext *avctx     = inlink->dst;
+    AVFilterLink *outlink      = avctx->outputs[0];
+    VAAPIVPPContext *vpp_ctx   = avctx->priv;
+    TransposeVAAPIContext *ctx = avctx->priv;
+    AVFrame *output_frame      = NULL;
+    VASurfaceID input_surface, output_surface;
+    VARectangle input_region, output_region;
+
+    VAProcPipelineParameterBuffer params;
+    int err;
+
+    if (ctx->passthrough)
+        return ff_filter_frame(outlink, input_frame);
+
+    av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
+           av_get_pix_fmt_name(input_frame->format),
+           input_frame->width, input_frame->height, input_frame->pts);
+
+    if (vpp_ctx->va_context == VA_INVALID_ID)
+        return AVERROR(EINVAL);
+
+    input_surface = (VASurfaceID)(uintptr_t)input_frame->data[3];
+    av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for transpose vpp input.\n",
+           input_surface);
+
+    output_frame = ff_get_video_buffer(outlink, vpp_ctx->output_width,
+                                       vpp_ctx->output_height);
+    if (!output_frame) {
+        err = AVERROR(ENOMEM);
+        goto fail;
+    }
+
+    output_surface = (VASurfaceID)(uintptr_t)output_frame->data[3];
+    av_log(avctx, AV_LOG_DEBUG, "Using surface %#x for transpose vpp output.\n",
+           output_surface);
+    memset(&params, 0, sizeof(params));
+    input_region = (VARectangle) {
+        .x      = 0,
+        .y      = 0,
+        .width  = input_frame->width,
+        .height = input_frame->height,
+    };
+
+    output_region = (VARectangle) {
+        .x      = 0,
+        .y      = 0,
+        .width  = output_frame->width,
+        .height = output_frame->height,
+    };
+
+    params.rotation_state = ctx->rotation_state;
+    params.mirror_state = ctx->mirror_state;
+
+    params.filters     = &vpp_ctx->filter_buffers[0];
+    params.num_filters = vpp_ctx->nb_filter_buffers;
+
+    params.surface = input_surface;
+    params.surface_region = &input_region;
+    params.surface_color_standard =
+        ff_vaapi_vpp_colour_standard(input_frame->colorspace);
+
+    params.output_region = &output_region;
+    params.output_background_color = VAAPI_VPP_BACKGROUND_BLACK;
+    params.output_color_standard = params.surface_color_standard;
+
+    err = ff_vaapi_vpp_render_picture(avctx, &params, output_surface);
+    if (err < 0)
+        goto fail;
+
+    err = av_frame_copy_props(output_frame, input_frame);
+    if (err < 0)
+        goto fail;
+    av_frame_free(&input_frame);
+
+    av_log(avctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n",
+           av_get_pix_fmt_name(output_frame->format),
+           output_frame->width, output_frame->height, output_frame->pts);
+
+    return ff_filter_frame(outlink, output_frame);
+
+fail:
+    av_frame_free(&input_frame);
+    av_frame_free(&output_frame);
+    return err;
+}
+
+static av_cold int transpose_vaapi_init(AVFilterContext *avctx)
+{
+    VAAPIVPPContext *vpp_ctx = avctx->priv;
+
+    ff_vaapi_vpp_ctx_init(avctx);
+    vpp_ctx->pipeline_uninit     = ff_vaapi_vpp_pipeline_uninit;
+    vpp_ctx->build_filter_params = transpose_vaapi_build_filter_params;
+    vpp_ctx->output_format       = AV_PIX_FMT_NONE;
+
+    return 0;
+}
+
+static int transpose_vaapi_vpp_config_output(AVFilterLink *outlink)
+{
+    AVFilterContext *avctx     = outlink->src;
+    VAAPIVPPContext *vpp_ctx   = avctx->priv;
+    TransposeVAAPIContext *ctx = avctx->priv;
+    AVFilterLink *inlink       = avctx->inputs[0];
+
+    if ((inlink->w >= inlink->h && ctx->passthrough == TRANSPOSE_PT_TYPE_LANDSCAPE) ||
+        (inlink->w <= inlink->h && ctx->passthrough == TRANSPOSE_PT_TYPE_PORTRAIT)) {
+        outlink->hw_frames_ctx = av_buffer_ref(inlink->hw_frames_ctx);
+        if (!outlink->hw_frames_ctx)
+            return AVERROR(ENOMEM);
+        av_log(avctx, AV_LOG_VERBOSE,
+               "w:%d h:%d -> w:%d h:%d (passthrough mode)\n",
+               inlink->w, inlink->h, inlink->w, inlink->h);
+        return 0;
+    }
+
+    ctx->passthrough = TRANSPOSE_PT_TYPE_NONE;
+
+    switch (ctx->dir) {
+    case TRANSPOSE_CCLOCK_FLIP:
+    case TRANSPOSE_CCLOCK:
+    case TRANSPOSE_CLOCK:
+    case TRANSPOSE_CLOCK_FLIP:
+        vpp_ctx->output_width  = avctx->inputs[0]->h;
+        vpp_ctx->output_height = avctx->inputs[0]->w;
+        av_log(avctx, AV_LOG_DEBUG, "swap width and height for clock/cclock rotation\n");
+        break;
+    default:
+        break;
+    }
+
+    return ff_vaapi_vpp_config_output(outlink);
+}
+
+static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h)
+{
+    TransposeVAAPIContext *ctx = inlink->dst->priv;
+
+    return ctx->passthrough ?
+        ff_null_get_video_buffer(inlink, w, h) :
+        ff_default_get_video_buffer(inlink, w, h);
+}
+
+#define OFFSET(x) offsetof(TransposeVAAPIContext, x)
+#define FLAGS (AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM)
+static const AVOption transpose_vaapi_options[] = {
+    { "dir", "set transpose direction", OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP }, 0, 6, FLAGS, "dir" },
+        { "cclock_flip",   "rotate counter-clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
+        { "clock",         "rotate clockwise",                            0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK       }, .flags=FLAGS, .unit = "dir" },
+        { "cclock",        "rotate counter-clockwise",                    0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK      }, .flags=FLAGS, .unit = "dir" },
+        { "clock_flip",    "rotate clockwise with vertical flip",         0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP  }, .flags=FLAGS, .unit = "dir" },
+        { "reversal",      "rotate by half-turn",                         0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_REVERSAL    }, .flags=FLAGS, .unit = "dir" },
+        { "hflip",         "flip horizontally",                           0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_HFLIP       }, .flags=FLAGS, .unit = "dir" },
+        { "vflip",         "flip vertically",                             0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_VFLIP       }, .flags=FLAGS, .unit = "dir" },
+
+    { "passthrough", "do not apply transposition if the input matches the specified geometry",
+      OFFSET(passthrough), AV_OPT_TYPE_INT, {.i64=TRANSPOSE_PT_TYPE_NONE},  0, INT_MAX, FLAGS, "passthrough" },
+        { "none",      "always apply transposition",   0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_NONE},      INT_MIN, INT_MAX, FLAGS, "passthrough" },
+        { "portrait",  "preserve portrait geometry",   0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_PORTRAIT},  INT_MIN, INT_MAX, FLAGS, "passthrough" },
+        { "landscape", "preserve landscape geometry",  0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_LANDSCAPE}, INT_MIN, INT_MAX, FLAGS, "passthrough" },
+
+    { NULL }
+};
+
+
+AVFILTER_DEFINE_CLASS(transpose_vaapi);
+
+static const AVFilterPad transpose_vaapi_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .filter_frame = &transpose_vaapi_filter_frame,
+        .get_video_buffer = get_video_buffer,
+        .config_props = &ff_vaapi_vpp_config_input,
+    },
+    { NULL }
+};
+
+static const AVFilterPad transpose_vaapi_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+        .config_props = &transpose_vaapi_vpp_config_output,
+    },
+    { NULL }
+};
+
+AVFilter ff_vf_transpose_vaapi = {
+    .name           = "transpose_vaapi",
+    .description    = NULL_IF_CONFIG_SMALL("VAAPI VPP for transpose"),
+    .priv_size      = sizeof(TransposeVAAPIContext),
+    .init           = &transpose_vaapi_init,
+    .uninit         = &ff_vaapi_vpp_ctx_uninit,
+    .query_formats  = &ff_vaapi_vpp_query_formats,
+    .inputs         = transpose_vaapi_inputs,
+    .outputs        = transpose_vaapi_outputs,
+    .priv_class     = &transpose_vaapi_class,
+    .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
+};