| /* |
| * 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 "transpose.h" |
| #include "video.h" |
| |
| typedef struct TransposeVtContext { |
| AVClass *class; |
| |
| VTPixelRotationSessionRef session; |
| int dir; |
| int passthrough; |
| } TransposeVtContext; |
| |
| static av_cold int transpose_vt_init(AVFilterContext *avctx) |
| { |
| TransposeVtContext *s = avctx->priv; |
| int ret; |
| |
| ret = VTPixelRotationSessionCreate(kCFAllocatorDefault, &s->session); |
| if (ret != noErr) { |
| av_log(avctx, AV_LOG_ERROR, "Rotation session create failed, %d\n", ret); |
| return AVERROR_EXTERNAL; |
| } |
| |
| return 0; |
| } |
| |
| static av_cold void transpose_vt_uninit(AVFilterContext *avctx) |
| { |
| TransposeVtContext *s = avctx->priv; |
| |
| if (s->session) { |
| VTPixelRotationSessionInvalidate(s->session); |
| CFRelease(s->session); |
| s->session = NULL; |
| } |
| } |
| |
| static int transpose_vt_filter_frame(AVFilterLink *link, AVFrame *in) |
| { |
| int ret; |
| AVFilterContext *ctx = link->dst; |
| TransposeVtContext *s = ctx->priv; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| CVPixelBufferRef src; |
| CVPixelBufferRef dst; |
| AVFrame *out; |
| |
| if (s->passthrough) |
| return ff_filter_frame(outlink, in); |
| |
| 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; |
| |
| src = (CVPixelBufferRef)in->data[3]; |
| dst = (CVPixelBufferRef)out->data[3]; |
| ret = VTPixelRotationSessionRotateImage(s->session, 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 transpose_vt_recreate_hw_ctx(AVFilterLink *outlink) |
| { |
| AVFilterContext *avctx = outlink->src; |
| AVFilterLink *inlink = outlink->src->inputs[0]; |
| AVHWFramesContext *hw_frame_ctx_in; |
| AVHWFramesContext *hw_frame_ctx_out; |
| int err; |
| |
| av_buffer_unref(&outlink->hw_frames_ctx); |
| |
| hw_frame_ctx_in = (AVHWFramesContext *)inlink->hw_frames_ctx->data; |
| outlink->hw_frames_ctx = av_hwframe_ctx_alloc(hw_frame_ctx_in->device_ref); |
| hw_frame_ctx_out = (AVHWFramesContext *)outlink->hw_frames_ctx->data; |
| hw_frame_ctx_out->format = AV_PIX_FMT_VIDEOTOOLBOX; |
| hw_frame_ctx_out->sw_format = hw_frame_ctx_in->sw_format; |
| hw_frame_ctx_out->width = outlink->w; |
| hw_frame_ctx_out->height = outlink->h; |
| |
| err = ff_filter_init_hw_frames(avctx, outlink, 1); |
| if (err < 0) |
| return err; |
| |
| err = av_hwframe_ctx_init(outlink->hw_frames_ctx); |
| if (err < 0) { |
| av_log(avctx, AV_LOG_ERROR, |
| "Failed to init videotoolbox frame context, %s\n", |
| av_err2str(err)); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int transpose_vt_config_output(AVFilterLink *outlink) |
| { |
| int err; |
| AVFilterContext *avctx = outlink->src; |
| TransposeVtContext *s = avctx->priv; |
| AVFilterLink *inlink = outlink->src->inputs[0]; |
| CFStringRef rotation = kVTRotation_0; |
| CFBooleanRef vflip = kCFBooleanFalse; |
| CFBooleanRef hflip = kCFBooleanFalse; |
| int swap_w_h = 0; |
| |
| av_buffer_unref(&outlink->hw_frames_ctx); |
| outlink->hw_frames_ctx = av_buffer_ref(inlink->hw_frames_ctx); |
| |
| if ((inlink->w >= inlink->h && s->passthrough == TRANSPOSE_PT_TYPE_LANDSCAPE) || |
| (inlink->w <= inlink->h && s->passthrough == TRANSPOSE_PT_TYPE_PORTRAIT)) { |
| 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; |
| } |
| |
| s->passthrough = TRANSPOSE_PT_TYPE_NONE; |
| |
| switch (s->dir) { |
| case TRANSPOSE_CCLOCK_FLIP: |
| rotation = kVTRotation_CCW90; |
| vflip = kCFBooleanTrue; |
| swap_w_h = 1; |
| break; |
| case TRANSPOSE_CCLOCK: |
| rotation = kVTRotation_CCW90; |
| swap_w_h = 1; |
| break; |
| case TRANSPOSE_CLOCK: |
| rotation = kVTRotation_CW90; |
| swap_w_h = 1; |
| break; |
| case TRANSPOSE_CLOCK_FLIP: |
| rotation = kVTRotation_CW90; |
| vflip = kCFBooleanTrue; |
| swap_w_h = 1; |
| break; |
| case TRANSPOSE_REVERSAL: |
| rotation = kVTRotation_180; |
| break; |
| case TRANSPOSE_HFLIP: |
| hflip = kCFBooleanTrue; |
| break; |
| case TRANSPOSE_VFLIP: |
| vflip = kCFBooleanTrue; |
| break; |
| default: |
| av_log(avctx, AV_LOG_ERROR, "Failed to set direction to %d\n", s->dir); |
| return AVERROR(EINVAL); |
| } |
| |
| err = VTSessionSetProperty(s->session, kVTPixelRotationPropertyKey_Rotation, |
| rotation); |
| if (err != noErr) { |
| av_log(avctx, AV_LOG_ERROR, "Set rotation property failed, %d\n", err); |
| return AVERROR_EXTERNAL; |
| } |
| err = VTSessionSetProperty(s->session, kVTPixelRotationPropertyKey_FlipVerticalOrientation, |
| vflip); |
| if (err != noErr) { |
| av_log(avctx, AV_LOG_ERROR, "Set vertical flip property failed, %d\n", err); |
| return AVERROR_EXTERNAL; |
| } |
| err = VTSessionSetProperty(s->session, kVTPixelRotationPropertyKey_FlipHorizontalOrientation, |
| hflip); |
| if (err != noErr) { |
| av_log(avctx, AV_LOG_ERROR, "Set horizontal flip property failed, %d\n", err); |
| return AVERROR_EXTERNAL; |
| } |
| |
| if (!swap_w_h) |
| return 0; |
| |
| outlink->w = inlink->h; |
| outlink->h = inlink->w; |
| return transpose_vt_recreate_hw_ctx(outlink); |
| } |
| |
| #define OFFSET(x) offsetof(TransposeVtContext, x) |
| #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) |
| static const AVOption transpose_vt_options[] = { |
| { "dir", "set transpose direction", |
| OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP }, 0, 6, FLAGS, .unit = "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, .unit = "passthrough" }, |
| { "none", "always apply transposition", |
| 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_PT_TYPE_NONE }, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" }, |
| { "portrait", "preserve portrait geometry", |
| 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_PT_TYPE_PORTRAIT }, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" }, |
| { "landscape", "preserve landscape geometry", |
| 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_PT_TYPE_LANDSCAPE }, INT_MIN, INT_MAX, FLAGS, .unit = "passthrough" }, |
| |
| { NULL } |
| }; |
| |
| AVFILTER_DEFINE_CLASS(transpose_vt); |
| |
| static const AVFilterPad transpose_vt_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .filter_frame = &transpose_vt_filter_frame, |
| }, |
| }; |
| |
| static const AVFilterPad transpose_vt_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = &transpose_vt_config_output, |
| }, |
| }; |
| |
| const AVFilter ff_vf_transpose_vt = { |
| .name = "transpose_vt", |
| .description = NULL_IF_CONFIG_SMALL("Transpose Videotoolbox frames"), |
| .priv_size = sizeof(TransposeVtContext), |
| .init = transpose_vt_init, |
| .uninit = transpose_vt_uninit, |
| FILTER_INPUTS(transpose_vt_inputs), |
| FILTER_OUTPUTS(transpose_vt_outputs), |
| FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VIDEOTOOLBOX), |
| .priv_class = &transpose_vt_class, |
| .flags = AVFILTER_FLAG_HWDEVICE, |
| .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, |
| }; |