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291 lines
9.7 KiB
291 lines
9.7 KiB
/* |
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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 "filters.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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FilterLink *outl = ff_filter_link(outlink); |
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AVFilterContext *avctx = outlink->src; |
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AVFilterLink *inlink = outlink->src->inputs[0]; |
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FilterLink *inl = ff_filter_link(inlink); |
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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(&outl->hw_frames_ctx); |
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hw_frame_ctx_in = (AVHWFramesContext *)inl->hw_frames_ctx->data; |
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outl->hw_frames_ctx = av_hwframe_ctx_alloc(hw_frame_ctx_in->device_ref); |
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hw_frame_ctx_out = (AVHWFramesContext *)outl->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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((AVVTFramesContext *)hw_frame_ctx_out->hwctx)->color_range = ((AVVTFramesContext *)hw_frame_ctx_in->hwctx)->color_range; |
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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(outl->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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FilterLink *outl = ff_filter_link(outlink); |
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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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FilterLink *inl = ff_filter_link(inlink); |
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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(&outl->hw_frames_ctx); |
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outl->hw_frames_ctx = av_buffer_ref(inl->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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