@@ -25,6 +25,7 @@ version <next>:
- Raw VVC bitstream parser, muxer and demuxer
- Bitstream filter for editing metadata in VVC streams
- Bitstream filter for converting VVC from MP4 to Annex B
+- scale_vt filter for videotoolbox
version 6.0:
- Radiance HDR image support
@@ -3835,6 +3835,7 @@ zmq_filter_deps="libzmq"
zoompan_filter_deps="swscale"
zscale_filter_deps="libzimg const_nan"
scale_vaapi_filter_deps="vaapi"
+scale_vt_filter_deps="videotoolbox"
scale_vulkan_filter_deps="vulkan spirv_compiler"
vpp_qsv_filter_deps="libmfx"
vpp_qsv_filter_select="qsvvpp"
@@ -21175,6 +21175,27 @@ Scale a logo to 1/10th the height of a video, while preserving its display aspec
@end example
@end itemize
+@section scale_vt
+
+Scale and convert the color parameters using VTPixelTransferSession.
+
+The filter accepts the following options:
+@table @option
+@item w
+@item h
+Set the output video dimension expression. Default value is the input dimension.
+
+@item color_matrix
+Set the output colorspace matrix.
+
+@item color_primaries
+Set the output color primaries.
+
+@item color_transfer
+Set the output transfer characteristics.
+
+@end table
+
@section scharr
Apply scharr operator to input video stream.
@@ -457,6 +457,7 @@ OBJS-$(CONFIG_SCALE_CUDA_FILTER) += vf_scale_cuda.o scale_eval.o \
OBJS-$(CONFIG_SCALE_NPP_FILTER) += vf_scale_npp.o scale_eval.o
OBJS-$(CONFIG_SCALE_QSV_FILTER) += vf_vpp_qsv.o
OBJS-$(CONFIG_SCALE_VAAPI_FILTER) += vf_scale_vaapi.o scale_eval.o vaapi_vpp.o
+OBJS-$(CONFIG_SCALE_VT_FILTER) += vf_scale_vt.o scale_eval.o
OBJS-$(CONFIG_SCALE_VULKAN_FILTER) += vf_scale_vulkan.o vulkan.o vulkan_filter.o
OBJS-$(CONFIG_SCALE2REF_FILTER) += vf_scale.o scale_eval.o
OBJS-$(CONFIG_SCALE2REF_NPP_FILTER) += vf_scale_npp.o scale_eval.o
@@ -427,6 +427,7 @@ extern const AVFilter ff_vf_scale_cuda;
extern const AVFilter ff_vf_scale_npp;
extern const AVFilter ff_vf_scale_qsv;
extern const AVFilter ff_vf_scale_vaapi;
+extern const AVFilter ff_vf_scale_vt;
extern const AVFilter ff_vf_scale_vulkan;
extern const AVFilter ff_vf_scale2ref;
extern const AVFilter ff_vf_scale2ref_npp;
@@ -31,8 +31,8 @@
#include "version_major.h"
-#define LIBAVFILTER_VERSION_MINOR 8
-#define LIBAVFILTER_VERSION_MICRO 102
+#define LIBAVFILTER_VERSION_MINOR 9
+#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
new file mode 100644
@@ -0,0 +1,244 @@
+/*
+ * Copyright (c) 2023 Zhao Zhili <zhilizhao@tencent.com>
+ *
+ * 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 <VideoToolbox/VideoToolbox.h>
+
+#include "libavutil/hwcontext.h"
+#include "libavutil/hwcontext_videotoolbox.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
+#include "internal.h"
+#include "scale_eval.h"
+
+typedef struct ScaleVtContext {
+ AVClass *class;
+
+ VTPixelTransferSessionRef transfer;
+ int output_width;
+ int output_height;
+ char *w_expr;
+ char *h_expr;
+
+ enum AVColorPrimaries colour_primaries;
+ enum AVColorTransferCharacteristic colour_transfer;
+ enum AVColorSpace colour_matrix;
+ char *colour_primaries_string;
+ char *colour_transfer_string;
+ char *colour_matrix_string;
+} ScaleVtContext;
+
+static av_cold int scale_vt_init(AVFilterContext *avctx)
+{
+ ScaleVtContext *s = avctx->priv;
+ int ret;
+ CFStringRef value;
+
+ ret = VTPixelTransferSessionCreate(kCFAllocatorDefault, &s->transfer);
+ if (ret != noErr) {
+ av_log(avctx, AV_LOG_ERROR, "transfer session create failed, %d\n", ret);
+ return AVERROR_EXTERNAL;
+ }
+
+#define STRING_OPTION(var_name, func_name, default_value) \
+ do { \
+ if (s->var_name##_string) { \
+ int var = av_##func_name##_from_name(s->var_name##_string); \
+ if (var < 0) { \
+ av_log(avctx, AV_LOG_ERROR, "Invalid %s.\n", #var_name); \
+ return AVERROR(EINVAL); \
+ } \
+ s->var_name = var; \
+ } else { \
+ s->var_name = default_value; \
+ } \
+ } while (0)
+
+ STRING_OPTION(colour_primaries, color_primaries, AVCOL_PRI_UNSPECIFIED);
+ STRING_OPTION(colour_transfer, color_transfer, AVCOL_TRC_UNSPECIFIED);
+ STRING_OPTION(colour_matrix, color_space, AVCOL_SPC_UNSPECIFIED);
+
+ if (s->colour_primaries != AVCOL_PRI_UNSPECIFIED) {
+ value = av_map_videotoolbox_color_primaries_from_av(s->colour_primaries);
+ if (!value) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Doesn't support converting to colour primaries %s\n",
+ s->colour_primaries_string);
+ return AVERROR(ENOTSUP);
+ }
+ VTSessionSetProperty(s->transfer, kVTPixelTransferPropertyKey_DestinationColorPrimaries, value);
+ }
+
+ if (s->colour_transfer != AVCOL_TRC_UNSPECIFIED) {
+ value = av_map_videotoolbox_color_trc_from_av(s->colour_transfer);
+ if (!value) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Doesn't support converting to trc %s\n",
+ s->colour_transfer_string);
+ return AVERROR(ENOTSUP);
+ }
+ VTSessionSetProperty(s->transfer, kVTPixelTransferPropertyKey_DestinationTransferFunction, value);
+ }
+
+ if (s->colour_matrix != AVCOL_SPC_UNSPECIFIED) {
+ value = av_map_videotoolbox_color_matrix_from_av(s->colour_matrix);
+ if (!value) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Doesn't support converting to colorspace %s\n",
+ s->colour_matrix_string);
+ return AVERROR(ENOTSUP);
+ }
+ VTSessionSetProperty(s->transfer, kVTPixelTransferPropertyKey_DestinationYCbCrMatrix, value);
+ }
+
+ return 0;
+}
+
+static av_cold void scale_vt_uninit(AVFilterContext *avctx)
+{
+ ScaleVtContext *s = avctx->priv;
+
+ if (s->transfer) {
+ VTPixelTransferSessionInvalidate(s->transfer);
+ CFRelease(s->transfer);
+ s->transfer = NULL;
+ }
+}
+
+static int scale_vt_filter_frame(AVFilterLink *link, AVFrame *in)
+{
+ int ret;
+ AVFilterContext *ctx = link->dst;
+ ScaleVtContext *s = ctx->priv;
+ AVFilterLink *outlink = ctx->outputs[0];
+ CVPixelBufferRef src;
+ CVPixelBufferRef dst;
+
+ AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+ if (!out) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ ret = av_frame_copy_props(out, in);
+ if (ret < 0)
+ goto fail;
+
+ av_reduce(&out->sample_aspect_ratio.num, &out->sample_aspect_ratio.den,
+ (int64_t)in->sample_aspect_ratio.num * outlink->h * link->w,
+ (int64_t)in->sample_aspect_ratio.den * outlink->w * link->h,
+ INT_MAX);
+ if (s->colour_primaries != AVCOL_PRI_UNSPECIFIED)
+ out->color_primaries = s->colour_primaries;
+ if (s->colour_transfer != AVCOL_TRC_UNSPECIFIED)
+ out->color_trc = s->colour_transfer;
+ if (s->colour_matrix != AVCOL_SPC_UNSPECIFIED)
+ out->colorspace = s->colour_matrix;
+
+ src = (CVPixelBufferRef)in->data[3];
+ dst = (CVPixelBufferRef)out->data[3];
+ ret = VTPixelTransferSessionTransferImage(s->transfer, src, dst);
+ if (ret != noErr) {
+ av_log(ctx, AV_LOG_ERROR, "transfer image failed, %d\n", ret);
+ ret = AVERROR_EXTERNAL;
+ goto fail;
+ }
+
+ av_frame_free(&in);
+
+ return ff_filter_frame(outlink, out);
+
+fail:
+ av_frame_free(&in);
+ av_frame_free(&out);
+ return ret;
+}
+
+static int scale_vt_config_output(AVFilterLink *outlink)
+{
+ int err;
+ AVFilterContext *avctx = outlink->src;
+ ScaleVtContext *s = avctx->priv;
+ AVFilterLink *inlink = outlink->src->inputs[0];
+
+ err = ff_scale_eval_dimensions(s, s->w_expr, s->h_expr, inlink, outlink,
+ &s->output_width,
+ &s->output_height);
+ if (err < 0)
+ return err;
+
+ outlink->w = s->output_width;
+ outlink->h = s->output_height;
+
+ if (inlink->sample_aspect_ratio.num) {
+ AVRational r = {outlink->h * inlink->w, outlink->w * inlink->h};
+ outlink->sample_aspect_ratio = av_mul_q(r, inlink->sample_aspect_ratio);
+ } else {
+ outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
+ }
+
+ return 0;
+}
+
+#define OFFSET(x) offsetof(ScaleVtContext, x)
+#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
+static const AVOption scale_vt_options[] = {
+ { "w", "Output video width",
+ OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, .flags = FLAGS },
+ { "h", "Output video height",
+ OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, .flags = FLAGS },
+ { "color_matrix", "Output colour matrix coefficient set",
+ OFFSET(colour_matrix_string), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
+ { "color_primaries", "Output colour primaries",
+ OFFSET(colour_primaries_string), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
+ { "color_transfer", "Output colour transfer characteristics",
+ OFFSET(colour_transfer_string), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = FLAGS },
+ { NULL },
+};
+
+AVFILTER_DEFINE_CLASS(scale_vt);
+
+static const AVFilterPad scale_vt_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .filter_frame = &scale_vt_filter_frame,
+ },
+};
+
+static const AVFilterPad scale_vt_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .config_props = &scale_vt_config_output,
+ },
+};
+
+const AVFilter ff_vf_scale_vt = {
+ .name = "scale_vt",
+ .description = NULL_IF_CONFIG_SMALL("Scale Videotoolbox frames"),
+ .priv_size = sizeof(ScaleVtContext),
+ .init = scale_vt_init,
+ .uninit = scale_vt_uninit,
+ FILTER_INPUTS(scale_vt_inputs),
+ FILTER_OUTPUTS(scale_vt_outputs),
+ FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VIDEOTOOLBOX),
+ .priv_class = &scale_vt_class,
+ .flags = AVFILTER_FLAG_HWDEVICE,
+};
From: Zhao Zhili <zhilizhao@tencent.com> For example, ./ffmpeg -hwaccel videotoolbox \ -hwaccel_output_format videotoolbox_vld \ -i ios-265.mov \ -c:v hevc_videotoolbox \ -profile:v main \ -b:v 3M \ -vf scale_vt=w=iw/2:h=ih/2:color_matrix=bt709:color_primaries=bt709:color_transfer=bt709 \ -c:a copy \ -tag:v hvc1 \ /tmp/test.mp4 Input: hevc (Main 10) (hvc1 / 0x31637668), yuv420p10le(tv, bt2020nc/bt2020/arib-std-b67), 3840x2160 Output: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709, progressive), 1920x1080 --- Changelog | 1 + configure | 1 + doc/filters.texi | 21 ++++ libavfilter/Makefile | 1 + libavfilter/allfilters.c | 1 + libavfilter/version.h | 4 +- libavfilter/vf_scale_vt.c | 244 ++++++++++++++++++++++++++++++++++++++ 7 files changed, 271 insertions(+), 2 deletions(-) create mode 100644 libavfilter/vf_scale_vt.c