280 lines
11 KiB
C
280 lines
11 KiB
C
/*
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* Copyright (c) 2020
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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 "dnn_io_proc.h"
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#include "libavutil/imgutils.h"
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#include "libswscale/swscale.h"
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#include "libavutil/avassert.h"
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#include "libavutil/detection_bbox.h"
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DNNReturnType ff_proc_from_dnn_to_frame(AVFrame *frame, DNNData *output, void *log_ctx)
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{
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struct SwsContext *sws_ctx;
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int bytewidth = av_image_get_linesize(frame->format, frame->width, 0);
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if (bytewidth < 0) {
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return DNN_ERROR;
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}
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if (output->dt != DNN_FLOAT) {
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avpriv_report_missing_feature(log_ctx, "data type rather than DNN_FLOAT");
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return DNN_ERROR;
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}
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switch (frame->format) {
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case AV_PIX_FMT_RGB24:
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case AV_PIX_FMT_BGR24:
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sws_ctx = sws_getContext(frame->width * 3,
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frame->height,
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AV_PIX_FMT_GRAYF32,
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frame->width * 3,
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frame->height,
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AV_PIX_FMT_GRAY8,
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0, NULL, NULL, NULL);
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if (!sws_ctx) {
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av_log(log_ctx, AV_LOG_ERROR, "Impossible to create scale context for the conversion "
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"fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n",
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av_get_pix_fmt_name(AV_PIX_FMT_GRAYF32), frame->width * 3, frame->height,
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av_get_pix_fmt_name(AV_PIX_FMT_GRAY8), frame->width * 3, frame->height);
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return DNN_ERROR;
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}
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sws_scale(sws_ctx, (const uint8_t *[4]){(const uint8_t *)output->data, 0, 0, 0},
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(const int[4]){frame->width * 3 * sizeof(float), 0, 0, 0}, 0, frame->height,
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(uint8_t * const*)frame->data, frame->linesize);
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sws_freeContext(sws_ctx);
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return DNN_SUCCESS;
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case AV_PIX_FMT_GRAYF32:
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av_image_copy_plane(frame->data[0], frame->linesize[0],
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output->data, bytewidth,
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bytewidth, frame->height);
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return DNN_SUCCESS;
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case AV_PIX_FMT_YUV420P:
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case AV_PIX_FMT_YUV422P:
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case AV_PIX_FMT_YUV444P:
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case AV_PIX_FMT_YUV410P:
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case AV_PIX_FMT_YUV411P:
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case AV_PIX_FMT_GRAY8:
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case AV_PIX_FMT_NV12:
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sws_ctx = sws_getContext(frame->width,
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frame->height,
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AV_PIX_FMT_GRAYF32,
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frame->width,
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frame->height,
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AV_PIX_FMT_GRAY8,
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0, NULL, NULL, NULL);
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if (!sws_ctx) {
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av_log(log_ctx, AV_LOG_ERROR, "Impossible to create scale context for the conversion "
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"fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n",
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av_get_pix_fmt_name(AV_PIX_FMT_GRAYF32), frame->width, frame->height,
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av_get_pix_fmt_name(AV_PIX_FMT_GRAY8), frame->width, frame->height);
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return DNN_ERROR;
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}
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sws_scale(sws_ctx, (const uint8_t *[4]){(const uint8_t *)output->data, 0, 0, 0},
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(const int[4]){frame->width * sizeof(float), 0, 0, 0}, 0, frame->height,
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(uint8_t * const*)frame->data, frame->linesize);
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sws_freeContext(sws_ctx);
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return DNN_SUCCESS;
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default:
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avpriv_report_missing_feature(log_ctx, "%s", av_get_pix_fmt_name(frame->format));
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return DNN_ERROR;
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}
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return DNN_SUCCESS;
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}
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DNNReturnType ff_proc_from_frame_to_dnn(AVFrame *frame, DNNData *input, void *log_ctx)
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{
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struct SwsContext *sws_ctx;
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int bytewidth = av_image_get_linesize(frame->format, frame->width, 0);
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if (bytewidth < 0) {
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return DNN_ERROR;
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}
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if (input->dt != DNN_FLOAT) {
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avpriv_report_missing_feature(log_ctx, "data type rather than DNN_FLOAT");
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return DNN_ERROR;
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}
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switch (frame->format) {
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case AV_PIX_FMT_RGB24:
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case AV_PIX_FMT_BGR24:
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sws_ctx = sws_getContext(frame->width * 3,
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frame->height,
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AV_PIX_FMT_GRAY8,
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frame->width * 3,
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frame->height,
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AV_PIX_FMT_GRAYF32,
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0, NULL, NULL, NULL);
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if (!sws_ctx) {
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av_log(log_ctx, AV_LOG_ERROR, "Impossible to create scale context for the conversion "
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"fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n",
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av_get_pix_fmt_name(AV_PIX_FMT_GRAY8), frame->width * 3, frame->height,
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av_get_pix_fmt_name(AV_PIX_FMT_GRAYF32),frame->width * 3, frame->height);
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return DNN_ERROR;
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}
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sws_scale(sws_ctx, (const uint8_t **)frame->data,
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frame->linesize, 0, frame->height,
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(uint8_t * const [4]){input->data, 0, 0, 0},
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(const int [4]){frame->width * 3 * sizeof(float), 0, 0, 0});
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sws_freeContext(sws_ctx);
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break;
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case AV_PIX_FMT_GRAYF32:
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av_image_copy_plane(input->data, bytewidth,
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frame->data[0], frame->linesize[0],
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bytewidth, frame->height);
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break;
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case AV_PIX_FMT_YUV420P:
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case AV_PIX_FMT_YUV422P:
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case AV_PIX_FMT_YUV444P:
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case AV_PIX_FMT_YUV410P:
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case AV_PIX_FMT_YUV411P:
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case AV_PIX_FMT_GRAY8:
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case AV_PIX_FMT_NV12:
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sws_ctx = sws_getContext(frame->width,
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frame->height,
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AV_PIX_FMT_GRAY8,
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frame->width,
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frame->height,
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AV_PIX_FMT_GRAYF32,
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0, NULL, NULL, NULL);
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if (!sws_ctx) {
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av_log(log_ctx, AV_LOG_ERROR, "Impossible to create scale context for the conversion "
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"fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n",
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av_get_pix_fmt_name(AV_PIX_FMT_GRAY8), frame->width, frame->height,
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av_get_pix_fmt_name(AV_PIX_FMT_GRAYF32),frame->width, frame->height);
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return DNN_ERROR;
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}
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sws_scale(sws_ctx, (const uint8_t **)frame->data,
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frame->linesize, 0, frame->height,
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(uint8_t * const [4]){input->data, 0, 0, 0},
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(const int [4]){frame->width * sizeof(float), 0, 0, 0});
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sws_freeContext(sws_ctx);
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break;
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default:
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avpriv_report_missing_feature(log_ctx, "%s", av_get_pix_fmt_name(frame->format));
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return DNN_ERROR;
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}
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return DNN_SUCCESS;
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}
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static enum AVPixelFormat get_pixel_format(DNNData *data)
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{
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if (data->dt == DNN_UINT8) {
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switch (data->order) {
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case DCO_BGR:
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return AV_PIX_FMT_BGR24;
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case DCO_RGB:
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return AV_PIX_FMT_RGB24;
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default:
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av_assert0(!"unsupported data pixel format.\n");
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return AV_PIX_FMT_BGR24;
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}
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}
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av_assert0(!"unsupported data type.\n");
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return AV_PIX_FMT_BGR24;
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}
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DNNReturnType ff_frame_to_dnn_classify(AVFrame *frame, DNNData *input, uint32_t bbox_index, void *log_ctx)
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{
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const AVPixFmtDescriptor *desc;
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int offsetx[4], offsety[4];
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uint8_t *bbox_data[4];
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struct SwsContext *sws_ctx;
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int linesizes[4];
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enum AVPixelFormat fmt;
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int left, top, width, height;
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const AVDetectionBBoxHeader *header;
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const AVDetectionBBox *bbox;
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AVFrameSideData *sd = av_frame_get_side_data(frame, AV_FRAME_DATA_DETECTION_BBOXES);
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av_assert0(sd);
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header = (const AVDetectionBBoxHeader *)sd->data;
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bbox = av_get_detection_bbox(header, bbox_index);
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left = bbox->x;
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width = bbox->w;
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top = bbox->y;
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height = bbox->h;
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fmt = get_pixel_format(input);
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sws_ctx = sws_getContext(width, height, frame->format,
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input->width, input->height, fmt,
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SWS_FAST_BILINEAR, NULL, NULL, NULL);
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if (!sws_ctx) {
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av_log(log_ctx, AV_LOG_ERROR, "Failed to create scale context for the conversion "
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"fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n",
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av_get_pix_fmt_name(frame->format), width, height,
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av_get_pix_fmt_name(fmt), input->width, input->height);
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return DNN_ERROR;
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}
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if (av_image_fill_linesizes(linesizes, fmt, input->width) < 0) {
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av_log(log_ctx, AV_LOG_ERROR, "unable to get linesizes with av_image_fill_linesizes");
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sws_freeContext(sws_ctx);
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return DNN_ERROR;
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}
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desc = av_pix_fmt_desc_get(frame->format);
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offsetx[1] = offsetx[2] = AV_CEIL_RSHIFT(left, desc->log2_chroma_w);
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offsetx[0] = offsetx[3] = left;
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offsety[1] = offsety[2] = AV_CEIL_RSHIFT(top, desc->log2_chroma_h);
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offsety[0] = offsety[3] = top;
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for (int k = 0; frame->data[k]; k++)
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bbox_data[k] = frame->data[k] + offsety[k] * frame->linesize[k] + offsetx[k];
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sws_scale(sws_ctx, (const uint8_t *const *)&bbox_data, frame->linesize,
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0, height,
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(uint8_t *const [4]){input->data, 0, 0, 0}, linesizes);
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sws_freeContext(sws_ctx);
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return DNN_SUCCESS;
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}
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DNNReturnType ff_frame_to_dnn_detect(AVFrame *frame, DNNData *input, void *log_ctx)
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{
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struct SwsContext *sws_ctx;
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int linesizes[4];
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enum AVPixelFormat fmt = get_pixel_format(input);
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sws_ctx = sws_getContext(frame->width, frame->height, frame->format,
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input->width, input->height, fmt,
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SWS_FAST_BILINEAR, NULL, NULL, NULL);
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if (!sws_ctx) {
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av_log(log_ctx, AV_LOG_ERROR, "Impossible to create scale context for the conversion "
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"fmt:%s s:%dx%d -> fmt:%s s:%dx%d\n",
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av_get_pix_fmt_name(frame->format), frame->width, frame->height,
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av_get_pix_fmt_name(fmt), input->width, input->height);
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return DNN_ERROR;
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}
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if (av_image_fill_linesizes(linesizes, fmt, input->width) < 0) {
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av_log(log_ctx, AV_LOG_ERROR, "unable to get linesizes with av_image_fill_linesizes");
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sws_freeContext(sws_ctx);
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return DNN_ERROR;
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}
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sws_scale(sws_ctx, (const uint8_t *const *)frame->data, frame->linesize, 0, frame->height,
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(uint8_t *const [4]){input->data, 0, 0, 0}, linesizes);
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sws_freeContext(sws_ctx);
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return DNN_SUCCESS;
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}
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