FFmpeg coverage

Line	Branch	Exec	Source
1			/*
2			* Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
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 "avcodec.h"
22			#include "codec_internal.h"
23			#include "decode.h"
24			#include "libavutil/bswap.h"
25			#include "libavutil/internal.h"
26
27		✗	static av_cold int decode_init(AVCodecContext *avctx)
28			{
29		✗	if (avctx->width & 1) {
30		✗	av_log(avctx, AV_LOG_ERROR, "v210x needs even width\n");
31		✗	return AVERROR(EINVAL);
32			}
33		✗	avctx->pix_fmt = AV_PIX_FMT_YUV422P16;
34		✗	avctx->bits_per_raw_sample = 10;
35
36		✗	return 0;
37			}
38
39		✗	static int decode_frame(AVCodecContext *avctx, AVFrame *pic,
40			int *got_frame, AVPacket *avpkt)
41			{
42		✗	const uint32_t *src = (const uint32_t *)avpkt->data;
43		✗	int width = avctx->width;
44		✗	int y = 0;
45			uint16_t *ydst, *udst, *vdst, *yend;
46			int ret;
47
48		✗	if (avpkt->size < avctx->width * avctx->height * 8 / 3) {
49		✗	av_log(avctx, AV_LOG_ERROR, "Packet too small\n");
50		✗	return AVERROR_INVALIDDATA;
51			}
52
53		✗	if (avpkt->size > avctx->width * avctx->height * 8 / 3) {
54		✗	avpriv_request_sample(avctx, "(Probably) padded data");
55			}
56
57		✗	if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
58		✗	return ret;
59
60		✗	ydst = (uint16_t *)pic->data[0];
61		✗	udst = (uint16_t *)pic->data[1];
62		✗	vdst = (uint16_t *)pic->data[2];
63		✗	yend = ydst + width;
64
65		✗	for (;;) {
66		✗	uint32_t v = av_be2ne32(*src++);
67		✗	*udst++ = (v >> 16) & 0xFFC0;
68		✗	*ydst++ = (v >> 6 ) & 0xFFC0;
69		✗	*vdst++ = (v << 4 ) & 0xFFC0;
70
71		✗	v = av_be2ne32(*src++);
72		✗	*ydst++ = (v >> 16) & 0xFFC0;
73
74		✗	if (ydst >= yend) {
75		✗	ydst += pic->linesize[0] / 2 - width;
76		✗	udst += pic->linesize[1] / 2 - width / 2;
77		✗	vdst += pic->linesize[2] / 2 - width / 2;
78		✗	yend = ydst + width;
79		✗	if (++y >= avctx->height)
80		✗	break;
81			}
82
83		✗	*udst++ = (v >> 6 ) & 0xFFC0;
84		✗	*ydst++ = (v << 4 ) & 0xFFC0;
85
86		✗	v = av_be2ne32(*src++);
87		✗	*vdst++ = (v >> 16) & 0xFFC0;
88		✗	*ydst++ = (v >> 6 ) & 0xFFC0;
89
90		✗	if (ydst >= yend) {
91		✗	ydst += pic->linesize[0] / 2 - width;
92		✗	udst += pic->linesize[1] / 2 - width / 2;
93		✗	vdst += pic->linesize[2] / 2 - width / 2;
94		✗	yend = ydst + width;
95		✗	if (++y >= avctx->height)
96		✗	break;
97			}
98
99		✗	*udst++ = (v << 4 ) & 0xFFC0;
100
101		✗	v = av_be2ne32(*src++);
102		✗	*ydst++ = (v >> 16) & 0xFFC0;
103		✗	*vdst++ = (v >> 6 ) & 0xFFC0;
104		✗	*ydst++ = (v << 4 ) & 0xFFC0;
105		✗	if (ydst >= yend) {
106		✗	ydst += pic->linesize[0] / 2 - width;
107		✗	udst += pic->linesize[1] / 2 - width / 2;
108		✗	vdst += pic->linesize[2] / 2 - width / 2;
109		✗	yend = ydst + width;
110		✗	if (++y >= avctx->height)
111		✗	break;
112			}
113			}
114
115		✗	*got_frame = 1;
116
117		✗	return avpkt->size;
118			}
119
120			const FFCodec ff_v210x_decoder = {
121			.p.name = "v210x",
122			CODEC_LONG_NAME("Uncompressed 4:2:2 10-bit"),
123			.p.type = AVMEDIA_TYPE_VIDEO,
124			.p.id = AV_CODEC_ID_V210X,
125			.init = decode_init,
126			FF_CODEC_DECODE_CB(decode_frame),
127			.p.capabilities = AV_CODEC_CAP_DR1,
128			};
129