FFmpeg coverage

Line	Branch	Exec	Source
1			/*
2			* Copyright 2012 Stefano Sabatini <stefasab gmail com>
3			*
4			* This file is part of FFmpeg.
5			*
6			* FFmpeg is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public
8			* License as published by the Free Software Foundation; either
9			* version 2.1 of the License, or (at your option) any later version.
10			*
11			* FFmpeg is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* Lesser General Public License for more details.
15			*
16			* You should have received a copy of the GNU Lesser General Public
17			* License along with FFmpeg; if not, write to the Free Software
18			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19			*/
20
21			#include <stdint.h>
22
23			#include "libavutil/dict.h"
24			#include "libavutil/imgutils.h"
25			#include "libavutil/log.h"
26			#include "libavutil/pixfmt.h"
27
28			#include "libavformat/avformat.h"
29
30			#include "libavcodec/avcodec.h"
31
32			#include "lavfutils.h"
33
34		✗	int ff_load_image(uint8_t *data[4], int linesize[4],
35			int *w, int *h, enum AVPixelFormat *pix_fmt,
36			const char *filename, void *log_ctx)
37			{
38		✗	const AVInputFormat *iformat = NULL;
39		✗	AVFormatContext *format_ctx = NULL;
40			const AVCodec *codec;
41		✗	AVCodecContext *codec_ctx = NULL;
42			AVCodecParameters *par;
43		✗	AVFrame *frame = NULL;
44		✗	int ret = 0;
45			AVPacket pkt;
46		✗	AVDictionary *opt=NULL;
47
48		✗	iformat = av_find_input_format("image2pipe");
49		✗	if ((ret = avformat_open_input(&format_ctx, filename, iformat, NULL)) < 0) {
50		✗	av_log(log_ctx, AV_LOG_ERROR,
51			"Failed to open input file '%s'\n", filename);
52		✗	return ret;
53			}
54
55		✗	if ((ret = avformat_find_stream_info(format_ctx, NULL)) < 0) {
56		✗	av_log(log_ctx, AV_LOG_ERROR, "Find stream info failed\n");
57		✗	goto end;
58			}
59
60		✗	par = format_ctx->streams[0]->codecpar;
61		✗	codec = avcodec_find_decoder(par->codec_id);
62		✗	if (!codec) {
63		✗	av_log(log_ctx, AV_LOG_ERROR, "Failed to find codec\n");
64		✗	ret = AVERROR(EINVAL);
65		✗	goto end;
66			}
67
68		✗	codec_ctx = avcodec_alloc_context3(codec);
69		✗	if (!codec_ctx) {
70		✗	av_log(log_ctx, AV_LOG_ERROR, "Failed to alloc video decoder context\n");
71		✗	ret = AVERROR(ENOMEM);
72		✗	goto end;
73			}
74
75		✗	ret = avcodec_parameters_to_context(codec_ctx, par);
76		✗	if (ret < 0) {
77		✗	av_log(log_ctx, AV_LOG_ERROR, "Failed to copy codec parameters to decoder context\n");
78		✗	goto end;
79			}
80
81		✗	av_dict_set(&opt, "thread_type", "slice", 0);
82		✗	if ((ret = avcodec_open2(codec_ctx, codec, &opt)) < 0) {
83		✗	av_log(log_ctx, AV_LOG_ERROR, "Failed to open codec\n");
84		✗	goto end;
85			}
86
87		✗	if (!(frame = av_frame_alloc()) ) {
88		✗	av_log(log_ctx, AV_LOG_ERROR, "Failed to alloc frame\n");
89		✗	ret = AVERROR(ENOMEM);
90		✗	goto end;
91			}
92
93		✗	ret = av_read_frame(format_ctx, &pkt);
94		✗	if (ret < 0) {
95		✗	av_log(log_ctx, AV_LOG_ERROR, "Failed to read frame from file\n");
96		✗	goto end;
97			}
98
99		✗	ret = avcodec_send_packet(codec_ctx, &pkt);
100		✗	av_packet_unref(&pkt);
101		✗	if (ret < 0) {
102		✗	av_log(log_ctx, AV_LOG_ERROR, "Error submitting a packet to decoder\n");
103		✗	goto end;
104			}
105
106		✗	ret = avcodec_receive_frame(codec_ctx, frame);
107		✗	if (ret < 0) {
108		✗	av_log(log_ctx, AV_LOG_ERROR, "Failed to decode image from file\n");
109		✗	goto end;
110			}
111
112		✗	*w = frame->width;
113		✗	*h = frame->height;
114		✗	*pix_fmt = frame->format;
115
116		✗	if ((ret = av_image_alloc(data, linesize, *w, *h, *pix_fmt, 16)) < 0)
117		✗	goto end;
118		✗	ret = 0;
119
120		✗	av_image_copy2(data, linesize, frame->data, frame->linesize,
121			*pix_fmt, *w, *h);
122
123		✗	end:
124		✗	avcodec_free_context(&codec_ctx);
125		✗	avformat_close_input(&format_ctx);
126		✗	av_frame_free(&frame);
127		✗	av_dict_free(&opt);
128
129		✗	if (ret < 0)
130		✗	av_log(log_ctx, AV_LOG_ERROR, "Error loading image file '%s'\n", filename);
131		✗	return ret;
132			}
133