GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavfilter/lavfutils.c Lines: 0 63 0.0 %
Date: 2020-09-25 23:16:12 Branches: 0 26 0.0 %

Line Branch Exec Source
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/*
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 * Copyright 2012 Stefano Sabatini <stefasab gmail 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 "libavutil/imgutils.h"
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#include "lavfutils.h"
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int ff_load_image(uint8_t *data[4], int linesize[4],
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                  int *w, int *h, enum AVPixelFormat *pix_fmt,
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                  const char *filename, void *log_ctx)
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{
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    AVInputFormat *iformat = NULL;
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    AVFormatContext *format_ctx = NULL;
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    const AVCodec *codec;
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    AVCodecContext *codec_ctx = NULL;
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    AVCodecParameters *par;
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    AVFrame *frame = NULL;
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    int frame_decoded, ret = 0;
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    AVPacket pkt;
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    AVDictionary *opt=NULL;
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    iformat = av_find_input_format("image2pipe");
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    if ((ret = avformat_open_input(&format_ctx, filename, iformat, NULL)) < 0) {
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        av_log(log_ctx, AV_LOG_ERROR,
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               "Failed to open input file '%s'\n", filename);
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        return ret;
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    }
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    if ((ret = avformat_find_stream_info(format_ctx, NULL)) < 0) {
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        av_log(log_ctx, AV_LOG_ERROR, "Find stream info failed\n");
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        goto end;
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    }
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    par = format_ctx->streams[0]->codecpar;
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    codec = avcodec_find_decoder(par->codec_id);
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    if (!codec) {
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        av_log(log_ctx, AV_LOG_ERROR, "Failed to find codec\n");
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        ret = AVERROR(EINVAL);
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        goto end;
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    }
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    codec_ctx = avcodec_alloc_context3(codec);
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    if (!codec_ctx) {
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        av_log(log_ctx, AV_LOG_ERROR, "Failed to alloc video decoder context\n");
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        ret = AVERROR(ENOMEM);
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        goto end;
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    }
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    ret = avcodec_parameters_to_context(codec_ctx, par);
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    if (ret < 0) {
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        av_log(log_ctx, AV_LOG_ERROR, "Failed to copy codec parameters to decoder context\n");
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        goto end;
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    }
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    av_dict_set(&opt, "thread_type", "slice", 0);
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    if ((ret = avcodec_open2(codec_ctx, codec, &opt)) < 0) {
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        av_log(log_ctx, AV_LOG_ERROR, "Failed to open codec\n");
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        goto end;
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    }
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    if (!(frame = av_frame_alloc()) ) {
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        av_log(log_ctx, AV_LOG_ERROR, "Failed to alloc frame\n");
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        ret = AVERROR(ENOMEM);
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        goto end;
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    }
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    ret = av_read_frame(format_ctx, &pkt);
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    if (ret < 0) {
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        av_log(log_ctx, AV_LOG_ERROR, "Failed to read frame from file\n");
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        goto end;
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    }
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    ret = avcodec_decode_video2(codec_ctx, frame, &frame_decoded, &pkt);
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    av_packet_unref(&pkt);
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    if (ret < 0 || !frame_decoded) {
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        av_log(log_ctx, AV_LOG_ERROR, "Failed to decode image from file\n");
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        if (ret >= 0)
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            ret = -1;
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        goto end;
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    }
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    *w       = frame->width;
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    *h       = frame->height;
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    *pix_fmt = frame->format;
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    if ((ret = av_image_alloc(data, linesize, *w, *h, *pix_fmt, 16)) < 0)
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        goto end;
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    ret = 0;
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    av_image_copy(data, linesize, (const uint8_t **)frame->data, frame->linesize, *pix_fmt, *w, *h);
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end:
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    avcodec_free_context(&codec_ctx);
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    avformat_close_input(&format_ctx);
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    av_frame_free(&frame);
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    av_dict_free(&opt);
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    if (ret < 0)
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        av_log(log_ctx, AV_LOG_ERROR, "Error loading image file '%s'\n", filename);
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    return ret;
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}