mirror of https://git.videolan.org/git/ffmpeg.git
286 lines
9.4 KiB
C
286 lines
9.4 KiB
C
/*
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* Copyright (c) 2023 Zhao Zhili <zhilizhao@tencent.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <VideoToolbox/VideoToolbox.h>
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#include "libavutil/hwcontext.h"
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#include "libavutil/hwcontext_videotoolbox.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "internal.h"
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#include "transpose.h"
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#include "video.h"
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typedef struct TransposeVtContext {
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AVClass *class;
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VTPixelRotationSessionRef session;
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int dir;
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int passthrough;
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} TransposeVtContext;
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static av_cold int transpose_vt_init(AVFilterContext *avctx)
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{
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TransposeVtContext *s = avctx->priv;
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int ret;
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ret = VTPixelRotationSessionCreate(kCFAllocatorDefault, &s->session);
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if (ret != noErr) {
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av_log(avctx, AV_LOG_ERROR, "Rotation session create failed, %d\n", ret);
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return AVERROR_EXTERNAL;
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}
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return 0;
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}
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static av_cold void transpose_vt_uninit(AVFilterContext *avctx)
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{
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TransposeVtContext *s = avctx->priv;
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if (s->session) {
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VTPixelRotationSessionInvalidate(s->session);
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CFRelease(s->session);
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s->session = NULL;
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}
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}
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static int transpose_vt_filter_frame(AVFilterLink *link, AVFrame *in)
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{
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int ret;
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AVFilterContext *ctx = link->dst;
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TransposeVtContext *s = ctx->priv;
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AVFilterLink *outlink = ctx->outputs[0];
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CVPixelBufferRef src;
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CVPixelBufferRef dst;
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AVFrame *out;
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if (s->passthrough)
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return ff_filter_frame(outlink, in);
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!out) {
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ret = AVERROR(ENOMEM);
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goto fail;
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}
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ret = av_frame_copy_props(out, in);
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if (ret < 0)
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goto fail;
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src = (CVPixelBufferRef)in->data[3];
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dst = (CVPixelBufferRef)out->data[3];
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ret = VTPixelRotationSessionRotateImage(s->session, src, dst);
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if (ret != noErr) {
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av_log(ctx, AV_LOG_ERROR, "transfer image failed, %d\n", ret);
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ret = AVERROR_EXTERNAL;
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goto fail;
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}
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av_frame_free(&in);
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return ff_filter_frame(outlink, out);
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fail:
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av_frame_free(&in);
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av_frame_free(&out);
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return ret;
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}
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static int transpose_vt_recreate_hw_ctx(AVFilterLink *outlink)
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{
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AVFilterContext *avctx = outlink->src;
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AVFilterLink *inlink = outlink->src->inputs[0];
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AVHWFramesContext *hw_frame_ctx_in;
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AVHWFramesContext *hw_frame_ctx_out;
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int err;
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av_buffer_unref(&outlink->hw_frames_ctx);
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hw_frame_ctx_in = (AVHWFramesContext *)inlink->hw_frames_ctx->data;
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outlink->hw_frames_ctx = av_hwframe_ctx_alloc(hw_frame_ctx_in->device_ref);
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hw_frame_ctx_out = (AVHWFramesContext *)outlink->hw_frames_ctx->data;
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hw_frame_ctx_out->format = AV_PIX_FMT_VIDEOTOOLBOX;
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hw_frame_ctx_out->sw_format = hw_frame_ctx_in->sw_format;
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hw_frame_ctx_out->width = outlink->w;
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hw_frame_ctx_out->height = outlink->h;
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err = ff_filter_init_hw_frames(avctx, outlink, 1);
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if (err < 0)
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return err;
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err = av_hwframe_ctx_init(outlink->hw_frames_ctx);
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if (err < 0) {
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av_log(avctx, AV_LOG_ERROR,
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"Failed to init videotoolbox frame context, %s\n",
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av_err2str(err));
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return err;
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}
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return 0;
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}
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static int transpose_vt_config_output(AVFilterLink *outlink)
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{
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int err;
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AVFilterContext *avctx = outlink->src;
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TransposeVtContext *s = avctx->priv;
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AVFilterLink *inlink = outlink->src->inputs[0];
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CFStringRef rotation = kVTRotation_0;
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CFBooleanRef vflip = kCFBooleanFalse;
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CFBooleanRef hflip = kCFBooleanFalse;
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int swap_w_h = 0;
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av_buffer_unref(&outlink->hw_frames_ctx);
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outlink->hw_frames_ctx = av_buffer_ref(inlink->hw_frames_ctx);
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if ((inlink->w >= inlink->h && s->passthrough == TRANSPOSE_PT_TYPE_LANDSCAPE) ||
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(inlink->w <= inlink->h && s->passthrough == TRANSPOSE_PT_TYPE_PORTRAIT)) {
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av_log(avctx, AV_LOG_VERBOSE,
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"w:%d h:%d -> w:%d h:%d (passthrough mode)\n",
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inlink->w, inlink->h, inlink->w, inlink->h);
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return 0;
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}
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s->passthrough = TRANSPOSE_PT_TYPE_NONE;
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switch (s->dir) {
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case TRANSPOSE_CCLOCK_FLIP:
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rotation = kVTRotation_CCW90;
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vflip = kCFBooleanTrue;
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swap_w_h = 1;
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break;
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case TRANSPOSE_CCLOCK:
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rotation = kVTRotation_CCW90;
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swap_w_h = 1;
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break;
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case TRANSPOSE_CLOCK:
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rotation = kVTRotation_CW90;
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swap_w_h = 1;
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break;
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case TRANSPOSE_CLOCK_FLIP:
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rotation = kVTRotation_CW90;
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vflip = kCFBooleanTrue;
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swap_w_h = 1;
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break;
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case TRANSPOSE_REVERSAL:
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rotation = kVTRotation_180;
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break;
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case TRANSPOSE_HFLIP:
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hflip = kCFBooleanTrue;
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break;
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case TRANSPOSE_VFLIP:
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vflip = kCFBooleanTrue;
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break;
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default:
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av_log(avctx, AV_LOG_ERROR, "Failed to set direction to %d\n", s->dir);
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return AVERROR(EINVAL);
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}
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err = VTSessionSetProperty(s->session, kVTPixelRotationPropertyKey_Rotation,
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rotation);
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if (err != noErr) {
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av_log(avctx, AV_LOG_ERROR, "Set rotation property failed, %d\n", err);
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return AVERROR_EXTERNAL;
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}
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err = VTSessionSetProperty(s->session, kVTPixelRotationPropertyKey_FlipVerticalOrientation,
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vflip);
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if (err != noErr) {
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av_log(avctx, AV_LOG_ERROR, "Set vertical flip property failed, %d\n", err);
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return AVERROR_EXTERNAL;
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}
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err = VTSessionSetProperty(s->session, kVTPixelRotationPropertyKey_FlipHorizontalOrientation,
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hflip);
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if (err != noErr) {
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av_log(avctx, AV_LOG_ERROR, "Set horizontal flip property failed, %d\n", err);
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return AVERROR_EXTERNAL;
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}
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if (!swap_w_h)
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return 0;
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outlink->w = inlink->h;
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outlink->h = inlink->w;
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return transpose_vt_recreate_hw_ctx(outlink);
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}
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#define OFFSET(x) offsetof(TransposeVtContext, x)
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#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
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static const AVOption transpose_vt_options[] = {
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{ "dir", "set transpose direction",
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OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP }, 0, 6, FLAGS, .unit = "dir" },
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{ "cclock_flip", "rotate counter-clockwise with vertical flip",
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0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
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{ "clock", "rotate clockwise",
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0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK }, .flags=FLAGS, .unit = "dir" },
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{ "cclock", "rotate counter-clockwise",
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0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK }, .flags=FLAGS, .unit = "dir" },
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{ "clock_flip", "rotate clockwise with vertical flip",
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0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP }, .flags=FLAGS, .unit = "dir" },
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{ "reversal", "rotate by half-turn",
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0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_REVERSAL }, .flags=FLAGS, .unit = "dir" },
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{ "hflip", "flip horizontally",
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0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_HFLIP }, .flags=FLAGS, .unit = "dir" },
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{ "vflip", "flip vertically",
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0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_VFLIP }, .flags=FLAGS, .unit = "dir" },
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{ "passthrough", "do not apply transposition if the input matches the specified geometry",
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OFFSET(passthrough), AV_OPT_TYPE_INT, { .i64=TRANSPOSE_PT_TYPE_NONE }, 0, INT_MAX, FLAGS, .unit = "passthrough" },
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{ "none", "always apply transposition",
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0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_PT_TYPE_NONE }, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" },
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{ "portrait", "preserve portrait geometry",
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0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_PT_TYPE_PORTRAIT }, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" },
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{ "landscape", "preserve landscape geometry",
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0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_PT_TYPE_LANDSCAPE }, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(transpose_vt);
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static const AVFilterPad transpose_vt_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = &transpose_vt_filter_frame,
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},
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};
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static const AVFilterPad transpose_vt_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = &transpose_vt_config_output,
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},
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};
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const AVFilter ff_vf_transpose_vt = {
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.name = "transpose_vt",
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.description = NULL_IF_CONFIG_SMALL("Transpose Videotoolbox frames"),
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.priv_size = sizeof(TransposeVtContext),
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.init = transpose_vt_init,
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.uninit = transpose_vt_uninit,
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FILTER_INPUTS(transpose_vt_inputs),
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FILTER_OUTPUTS(transpose_vt_outputs),
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FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VIDEOTOOLBOX),
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.priv_class = &transpose_vt_class,
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.flags = AVFILTER_FLAG_HWDEVICE,
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.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
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};
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