FFmpeg coverage

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavcodec/fraps.c	Lines:	126	155	81.3 %
Date:	2020-07-11 02:49:52	Branches:	72	98	73.5 %


/*
 * Fraps FPS1 decoder
 * Copyright (c) 2005 Roine Gustafsson
 * Copyright (c) 2006 Konstantin Shishkov
 *
 * 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
 */

/**
 * @file
 * Lossless Fraps 'FPS1' decoder
 * @author Roine Gustafsson (roine at users sf net)
 * @author Konstantin Shishkov
 *
 * Codec algorithm for version 0 is taken from Transcode <www.transcoding.org>
 *
 * Version 2 files support by Konstantin Shishkov
 */

#include "avcodec.h"
#include "get_bits.h"
#include "huffman.h"
#include "bytestream.h"
#include "bswapdsp.h"
#include "internal.h"
#include "thread.h"

#define FPS_TAG MKTAG('F', 'P', 'S', 'x')
#define VLC_BITS 11

/**
 * local variable storage
 */
typedef struct FrapsContext {
    AVCodecContext *avctx;
    BswapDSPContext bdsp;
    uint8_t *tmpbuf;
    int tmpbuf_size;
} FrapsContext;


/**
 * initializes decoder
 * @param avctx codec context
 * @return 0 on success or negative if fails
 */
static av_cold int decode_init(AVCodecContext *avctx)
{
    FrapsContext * const s = avctx->priv_data;

    s->avctx  = avctx;
    s->tmpbuf = NULL;

    ff_bswapdsp_init(&s->bdsp);

    return 0;
}

/**
 * Comparator - our nodes should ascend by count
 * but with preserved symbol order
 */
static int huff_cmp(const void *va, const void *vb)
{
    const Node *a = va, *b = vb;
    return (a->count - b->count)*256 + a->sym - b->sym;
}

/**
 * decode Fraps v2 packed plane
 */
static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
                               int h, const uint8_t *src, int size, int Uoff,
                               const int step)
{
    int i, j, ret;
    GetBitContext gb;
    VLC vlc;
    Node nodes[512];

    for (i = 0; i < 256; i++)
        nodes[i].count = bytestream_get_le32(&src);
    size -= 1024;
    if ((ret = ff_huff_build_tree(s->avctx, &vlc, 256, VLC_BITS,
                                  nodes, huff_cmp,
                                  FF_HUFFMAN_FLAG_ZERO_COUNT)) < 0)
        return ret;
    /* we have built Huffman table and are ready to decode plane */

    /* convert bits so they may be used by standard bitreader */
    s->bdsp.bswap_buf((uint32_t *) s->tmpbuf,
                      (const uint32_t *) src, size >> 2);

    if ((ret = init_get_bits8(&gb, s->tmpbuf, size)) < 0)
        return ret;

    for (j = 0; j < h; j++) {
        for (i = 0; i < w*step; i += step) {
            dst[i] = get_vlc2(&gb, vlc.table, VLC_BITS, 3);
            /* lines are stored as deltas between previous lines
             * and we need to add 0x80 to the first lines of chroma planes
             */
            if (j)
                dst[i] += dst[i - stride];
            else if (Uoff)
                dst[i] += 0x80;
            if (get_bits_left(&gb) < 0) {
                ff_free_vlc(&vlc);
                return AVERROR_INVALIDDATA;
            }
        }
        dst += stride;
    }
    ff_free_vlc(&vlc);
    return 0;
}

static int decode_frame(AVCodecContext *avctx,
                        void *data, int *got_frame,
                        AVPacket *avpkt)
{
    FrapsContext * const s = avctx->priv_data;
    const uint8_t *buf     = avpkt->data;
    int buf_size           = avpkt->size;
    ThreadFrame frame = { .f = data };
    AVFrame * const f = data;
    uint32_t header;
    unsigned int version,header_size;
    unsigned int x, y;
    const uint32_t *buf32;
    uint32_t *luma1,*luma2,*cb,*cr;
    uint32_t offs[4];
    int i, j, ret, is_chroma;
    const int planes = 3;
    int is_pal;
    uint8_t *out;

    if (buf_size < 4) {
        av_log(avctx, AV_LOG_ERROR, "Packet is too short\n");
        return AVERROR_INVALIDDATA;
    }

    header      = AV_RL32(buf);
    version     = header & 0xff;
    is_pal      = buf[1] == 2 && version == 1;
    header_size = (header & (1<<30))? 8 : 4; /* bit 30 means pad to 8 bytes */

    if (version > 5) {
        avpriv_report_missing_feature(avctx, "Fraps version %u", version);
        return AVERROR_PATCHWELCOME;
    }

    buf += header_size;

    if (is_pal) {
        unsigned needed_size = avctx->width * avctx->height + 1024;
        needed_size += header_size;
        if (buf_size != needed_size) {
            av_log(avctx, AV_LOG_ERROR,
                   "Invalid frame length %d (should be %d)\n",
                   buf_size, needed_size);
            return AVERROR_INVALIDDATA;
        }
    } else if (version < 2) {
        unsigned needed_size = avctx->width * avctx->height * 3;
        if (version == 0) needed_size /= 2;
        needed_size += header_size;
        /* bit 31 means same as previous pic */
        if (header & (1U<<31)) {
            *got_frame = 0;
            return buf_size;
        }
        if (buf_size != needed_size) {
            av_log(avctx, AV_LOG_ERROR,
                   "Invalid frame length %d (should be %d)\n",
                   buf_size, needed_size);
            return AVERROR_INVALIDDATA;
        }
    } else {
        /* skip frame */
        if (buf_size == 8) {
            *got_frame = 0;
            return buf_size;
        }
        if (AV_RL32(buf) != FPS_TAG || buf_size < planes*1024 + 24) {
            av_log(avctx, AV_LOG_ERROR, "error in data stream\n");
            return AVERROR_INVALIDDATA;
        }
        for (i = 0; i < planes; i++) {
            offs[i] = AV_RL32(buf + 4 + i * 4);
            if (offs[i] >= buf_size - header_size || (i && offs[i] <= offs[i - 1] + 1024)) {
                av_log(avctx, AV_LOG_ERROR, "plane %i offset is out of bounds\n", i);
                return AVERROR_INVALIDDATA;
            }
        }
        offs[planes] = buf_size - header_size;
        for (i = 0; i < planes; i++) {
            av_fast_padded_malloc(&s->tmpbuf, &s->tmpbuf_size, offs[i + 1] - offs[i] - 1024);
            if (!s->tmpbuf)
                return AVERROR(ENOMEM);
        }
    }

    f->pict_type = AV_PICTURE_TYPE_I;
    f->key_frame = 1;

    avctx->pix_fmt = version & 1 ? is_pal ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_BGR24 : AV_PIX_FMT_YUVJ420P;
    avctx->color_range = version & 1 ? AVCOL_RANGE_UNSPECIFIED
                                     : AVCOL_RANGE_JPEG;
    avctx->colorspace = version & 1 ? AVCOL_SPC_UNSPECIFIED : AVCOL_SPC_BT709;

    if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
        return ret;

    switch (version) {
    case 0:
    default:
        /* Fraps v0 is a reordered YUV420 */
        if (((avctx->width % 8) != 0) || ((avctx->height % 2) != 0)) {
            av_log(avctx, AV_LOG_ERROR, "Invalid frame size %dx%d\n",
                   avctx->width, avctx->height);
            return AVERROR_INVALIDDATA;
        }

        buf32 = (const uint32_t*)buf;
        for (y = 0; y < avctx->height / 2; y++) {
            luma1 = (uint32_t*)&f->data[0][  y * 2      * f->linesize[0] ];
            luma2 = (uint32_t*)&f->data[0][ (y * 2 + 1) * f->linesize[0] ];
            cr    = (uint32_t*)&f->data[1][  y          * f->linesize[1] ];
            cb    = (uint32_t*)&f->data[2][  y          * f->linesize[2] ];
            for (x = 0; x < avctx->width; x += 8) {
                *luma1++ = *buf32++;
                *luma1++ = *buf32++;
                *luma2++ = *buf32++;
                *luma2++ = *buf32++;
                *cr++    = *buf32++;
                *cb++    = *buf32++;
            }
        }
        break;

    case 1:
        if (is_pal) {
            uint32_t *pal = (uint32_t *)f->data[1];

            for (y = 0; y < 256; y++) {
                pal[y] = AV_RL32(buf) | 0xFF000000;
                buf += 4;
            }

            for (y = 0; y <avctx->height; y++)
                memcpy(&f->data[0][y * f->linesize[0]],
                       &buf[y * avctx->width],
                       avctx->width);
        } else {
        /* Fraps v1 is an upside-down BGR24 */
            for (y = 0; y<avctx->height; y++)
                memcpy(&f->data[0][(avctx->height - y - 1) * f->linesize[0]],
                       &buf[y * avctx->width * 3],
                       3 * avctx->width);
        }
        break;

    case 2:
    case 4:
        /**
         * Fraps v2 is Huffman-coded YUV420 planes
         * Fraps v4 is virtually the same
         */
        for (i = 0; i < planes; i++) {
            is_chroma = !!i;
            if ((ret = fraps2_decode_plane(s, f->data[i], f->linesize[i],
                                           avctx->width  >> is_chroma,
                                           avctx->height >> is_chroma,
                                           buf + offs[i], offs[i + 1] - offs[i],
                                           is_chroma, 1)) < 0) {
                av_log(avctx, AV_LOG_ERROR, "Error decoding plane %i\n", i);
                return ret;
            }
        }
        break;
    case 3:
    case 5:
        /* Virtually the same as version 4, but is for RGB24 */
        for (i = 0; i < planes; i++) {
            if ((ret = fraps2_decode_plane(s, f->data[0] + i + (f->linesize[0] * (avctx->height - 1)),
                                           -f->linesize[0], avctx->width, avctx->height,
                                           buf + offs[i], offs[i + 1] - offs[i], 0, 3)) < 0) {
                av_log(avctx, AV_LOG_ERROR, "Error decoding plane %i\n", i);
                return ret;
            }
        }
        out = f->data[0];
        // convert pseudo-YUV into real RGB
        for (j = 0; j < avctx->height; j++) {
            uint8_t *line_end = out + 3*avctx->width;
            while (out < line_end) {
                out[0]  += out[1];
                out[2]  += out[1];
                out += 3;
            }
            out += f->linesize[0] - 3*avctx->width;
        }
        break;
    }

    *got_frame = 1;

    return buf_size;
}


/**
 * closes decoder
 * @param avctx codec context
 * @return 0 on success or negative if fails
 */
static av_cold int decode_end(AVCodecContext *avctx)
{
    FrapsContext *s = (FrapsContext*)avctx->priv_data;

    av_freep(&s->tmpbuf);
    return 0;
}


AVCodec ff_fraps_decoder = {
    .name           = "fraps",
    .long_name      = NULL_IF_CONFIG_SMALL("Fraps"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_FRAPS,
    .priv_data_size = sizeof(FrapsContext),
    .init           = decode_init,
    .close          = decode_end,
    .decode         = decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
};


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			/*
2			* Fraps FPS1 decoder
3			* Copyright (c) 2005 Roine Gustafsson
4			* Copyright (c) 2006 Konstantin Shishkov
5			*
6			* This file is part of FFmpeg.
7			*
8			* FFmpeg is free software; you can redistribute it and/or
9			* modify it under the terms of the GNU Lesser General Public
10			* License as published by the Free Software Foundation; either
11			* version 2.1 of the License, or (at your option) any later version.
12			*
13			* FFmpeg is distributed in the hope that it will be useful,
14			* but WITHOUT ANY WARRANTY; without even the implied warranty of
15			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16			* Lesser General Public License for more details.
17			*
18			* You should have received a copy of the GNU Lesser General Public
19			* License along with FFmpeg; if not, write to the Free Software
20			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21			*/
22
23			/**
24			* @file
25			* Lossless Fraps 'FPS1' decoder
26			* @author Roine Gustafsson (roine at users sf net)
27			* @author Konstantin Shishkov
28			*
29			* Codec algorithm for version 0 is taken from Transcode <www.transcoding.org>
30			*
31			* Version 2 files support by Konstantin Shishkov
32			*/
33
34			#include "avcodec.h"
35			#include "get_bits.h"
36			#include "huffman.h"
37			#include "bytestream.h"
38			#include "bswapdsp.h"
39			#include "internal.h"
40			#include "thread.h"
41
42			#define FPS_TAG MKTAG('F', 'P', 'S', 'x')
43			#define VLC_BITS 11
44
45			/**
46			* local variable storage
47			*/
48			typedef struct FrapsContext {
49			AVCodecContext *avctx;
50			BswapDSPContext bdsp;
51			uint8_t *tmpbuf;
52			int tmpbuf_size;
53			} FrapsContext;
54
55
56			/**
57			* initializes decoder
58			* @param avctx codec context
59			* @return 0 on success or negative if fails
60			*/
61		14	static av_cold int decode_init(AVCodecContext *avctx)
62			{
63		14	FrapsContext * const s = avctx->priv_data;
64
65		14	s->avctx = avctx;
66		14	s->tmpbuf = NULL;
67
68		14	ff_bswapdsp_init(&s->bdsp);
69
70		14	return 0;
71			}
72
73			/**
74			* Comparator - our nodes should ascend by count
75			* but with preserved symbol order
76			*/
77		924225	static int huff_cmp(const void va, const void vb)
78			{
79		924225	const Node a = va, b = vb;
80		924225	return (a->count - b->count)*256 + a->sym - b->sym;
81			}
82
83			/**
84			* decode Fraps v2 packed plane
85			*/
86		417	static int fraps2_decode_plane(FrapsContext s, uint8_t dst, int stride, int w,
87			int h, const uint8_t *src, int size, int Uoff,
88			const int step)
89			{
90			int i, j, ret;
91			GetBitContext gb;
92			VLC vlc;
93			Node nodes[512];
94
95	✓✓	107169	for (i = 0; i < 256; i++)
96		106752	nodes[i].count = bytestream_get_le32(&src);
97		417	size -= 1024;
98	✗✓	417	if ((ret = ff_huff_build_tree(s->avctx, &vlc, 256, VLC_BITS,
99			nodes, huff_cmp,
100			FF_HUFFMAN_FLAG_ZERO_COUNT)) < 0)
101			return ret;
102			/* we have built Huffman table and are ready to decode plane */
103
104			/* convert bits so they may be used by standard bitreader */
105		417	s->bdsp.bswap_buf((uint32_t *) s->tmpbuf,
106			(const uint32_t *) src, size >> 2);
107
108	✗✓	417	if ((ret = init_get_bits8(&gb, s->tmpbuf, size)) < 0)
109			return ret;
110
111	✓✓	82607	for (j = 0; j < h; j++) {
112	✓✓	29602124	for (i = 0; i < w*step; i += step) {
113		29519934	dst[i] = get_vlc2(&gb, vlc.table, VLC_BITS, 3);
114			/* lines are stored as deltas between previous lines
115			* and we need to add 0x80 to the first lines of chroma planes
116			*/
117	✓✓	29519934	if (j)
118		29387582	dst[i] += dst[i - stride];
119	✓✓	132352	else if (Uoff)
120		8192	dst[i] += 0x80;
121	✓✓	29519934	if (get_bits_left(&gb) < 0) {
122		2	ff_free_vlc(&vlc);
123		2	return AVERROR_INVALIDDATA;
124			}
125			}
126		82190	dst += stride;
127			}
128		415	ff_free_vlc(&vlc);
129		415	return 0;
130			}
131
132		176	static int decode_frame(AVCodecContext *avctx,
133			void data, int got_frame,
134			AVPacket *avpkt)
135			{
136		176	FrapsContext * const s = avctx->priv_data;
137		176	const uint8_t *buf = avpkt->data;
138		176	int buf_size = avpkt->size;
139		176	ThreadFrame frame = { .f = data };
140		176	AVFrame * const f = data;
141			uint32_t header;
142			unsigned int version,header_size;
143			unsigned int x, y;
144			const uint32_t *buf32;
145			uint32_t luma1,luma2,cb,cr;
146			uint32_t offs[4];
147			int i, j, ret, is_chroma;
148		176	const int planes = 3;
149			int is_pal;
150			uint8_t *out;
151
152	✗✓	176	if (buf_size < 4) {
153			av_log(avctx, AV_LOG_ERROR, "Packet is too short\n");
154			return AVERROR_INVALIDDATA;
155			}
156
157		176	header = AV_RL32(buf);
158		176	version = header & 0xff;
159	✗✓✗✗	176	is_pal = buf[1] == 2 && version == 1;
160	✓✗	176	header_size = (header & (1<<30))? 8 : 4; /* bit 30 means pad to 8 bytes */
161
162	✗✓	176	if (version > 5) {
163			avpriv_report_missing_feature(avctx, "Fraps version %u", version);
164			return AVERROR_PATCHWELCOME;
165			}
166
167		176	buf += header_size;
168
169	✗✓	176	if (is_pal) {
170			unsigned needed_size = avctx->width * avctx->height + 1024;
171			needed_size += header_size;
172			if (buf_size != needed_size) {
173			av_log(avctx, AV_LOG_ERROR,
174			"Invalid frame length %d (should be %d)\n",
175			buf_size, needed_size);
176			return AVERROR_INVALIDDATA;
177			}
178	✓✓	176	} else if (version < 2) {
179		24	unsigned needed_size = avctx->width * avctx->height * 3;
180	✓✓	24	if (version == 0) needed_size /= 2;
181		24	needed_size += header_size;
182			/* bit 31 means same as previous pic */
183	✗✓	24	if (header & (1U<<31)) {
184			*got_frame = 0;
185			return buf_size;
186			}
187	✓✓	24	if (buf_size != needed_size) {
188		1	av_log(avctx, AV_LOG_ERROR,
189			"Invalid frame length %d (should be %d)\n",
190			buf_size, needed_size);
191		1	return AVERROR_INVALIDDATA;
192			}
193			} else {
194			/* skip frame */
195	✓✓	152	if (buf_size == 8) {
196		10	*got_frame = 0;
197		10	return buf_size;
198			}
199	✓✗✗✓	142	if (AV_RL32(buf) != FPS_TAG \|\| buf_size < planes*1024 + 24) {
200			av_log(avctx, AV_LOG_ERROR, "error in data stream\n");
201			return AVERROR_INVALIDDATA;
202			}
203	✓✓	563	for (i = 0; i < planes; i++) {
204		424	offs[i] = AV_RL32(buf + 4 + i * 4);
205	✓✓✓✓ ✗✓	424	if (offs[i] >= buf_size - header_size \|\| (i && offs[i] <= offs[i - 1] + 1024)) {
206		3	av_log(avctx, AV_LOG_ERROR, "plane %i offset is out of bounds\n", i);
207		3	return AVERROR_INVALIDDATA;
208			}
209			}
210		139	offs[planes] = buf_size - header_size;
211	✓✓	556	for (i = 0; i < planes; i++) {
212		417	av_fast_padded_malloc(&s->tmpbuf, &s->tmpbuf_size, offs[i + 1] - offs[i] - 1024);
213	✗✓	417	if (!s->tmpbuf)
214			return AVERROR(ENOMEM);
215			}
216			}
217
218		162	f->pict_type = AV_PICTURE_TYPE_I;
219		162	f->key_frame = 1;
220
221	✓✓✗✓	162	avctx->pix_fmt = version & 1 ? is_pal ? AV_PIX_FMT_PAL8 : AV_PIX_FMT_BGR24 : AV_PIX_FMT_YUVJ420P;
222		324	avctx->color_range = version & 1 ? AVCOL_RANGE_UNSPECIFIED
223	✓✓	162	: AVCOL_RANGE_JPEG;
224	✓✓	162	avctx->colorspace = version & 1 ? AVCOL_SPC_UNSPECIFIED : AVCOL_SPC_BT709;
225
226	✗✓	162	if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
227			return ret;
228
229	✓✓✓✓	162	switch (version) {
230		21	case 0:
231			default:
232			/* Fraps v0 is a reordered YUV420 */
233	✓✗✗✓	21	if (((avctx->width % 8) != 0) \|\| ((avctx->height % 2) != 0)) {
234			av_log(avctx, AV_LOG_ERROR, "Invalid frame size %dx%d\n",
235			avctx->width, avctx->height);
236			return AVERROR_INVALIDDATA;
237			}
238
239		21	buf32 = (const uint32_t*)buf;
240	✓✓	2289	for (y = 0; y < avctx->height / 2; y++) {
241		2268	luma1 = (uint32_t)&f->data[0][ y 2 * f->linesize[0] ];
242		2268	luma2 = (uint32_t)&f->data[0][ (y 2 + 1) * f->linesize[0] ];
243		2268	cr = (uint32_t)&f->data[1][ y f->linesize[1] ];
244		2268	cb = (uint32_t)&f->data[2][ y f->linesize[2] ];
245	✓✓	90720	for (x = 0; x < avctx->width; x += 8) {
246		88452	luma1++ = buf32++;
247		88452	luma1++ = buf32++;
248		88452	luma2++ = buf32++;
249		88452	luma2++ = buf32++;
250		88452	cr++ = buf32++;
251		88452	cb++ = buf32++;
252			}
253			}
254		21	break;
255
256		2	case 1:
257	✗✓	2	if (is_pal) {
258			uint32_t pal = (uint32_t )f->data[1];
259
260			for (y = 0; y < 256; y++) {
261			pal[y] = AV_RL32(buf) \| 0xFF000000;
262			buf += 4;
263			}
264
265			for (y = 0; y <avctx->height; y++)
266			memcpy(&f->data[0][y * f->linesize[0]],
267			&buf[y * avctx->width],
268			avctx->width);
269			} else {
270			/* Fraps v1 is an upside-down BGR24 */
271	✓✓	482	for (y = 0; y<avctx->height; y++)
272		480	memcpy(&f->data[0][(avctx->height - y - 1) * f->linesize[0]],
273		480	&buf[y * avctx->width * 3],
274		480	3 * avctx->width);
275			}
276		2	break;
277
278		11	case 2:
279			case 4:
280			/**
281			* Fraps v2 is Huffman-coded YUV420 planes
282			* Fraps v4 is virtually the same
283			*/
284	✓✓	44	for (i = 0; i < planes; i++) {
285		33	is_chroma = !!i;
286	✗✓	33	if ((ret = fraps2_decode_plane(s, f->data[i], f->linesize[i],
287		33	avctx->width >> is_chroma,
288		33	avctx->height >> is_chroma,
289		33	buf + offs[i], offs[i + 1] - offs[i],
290			is_chroma, 1)) < 0) {
291			av_log(avctx, AV_LOG_ERROR, "Error decoding plane %i\n", i);
292			return ret;
293			}
294			}
295		11	break;
296		128	case 3:
297			case 5:
298			/* Virtually the same as version 4, but is for RGB24 */
299	✓✓	510	for (i = 0; i < planes; i++) {
300	✓✓	384	if ((ret = fraps2_decode_plane(s, f->data[0] + i + (f->linesize[0] * (avctx->height - 1)),
301		384	-f->linesize[0], avctx->width, avctx->height,
302		384	buf + offs[i], offs[i + 1] - offs[i], 0, 3)) < 0) {
303		2	av_log(avctx, AV_LOG_ERROR, "Error decoding plane %i\n", i);
304		2	return ret;
305			}
306			}
307		126	out = f->data[0];
308			// convert pseudo-YUV into real RGB
309	✓✓	23022	for (j = 0; j < avctx->height; j++) {
310		22896	uint8_t line_end = out + 3avctx->width;
311	✓✓	7305072	while (out < line_end) {
312		7282176	out[0] += out[1];
313		7282176	out[2] += out[1];
314		7282176	out += 3;
315			}
316		22896	out += f->linesize[0] - 3*avctx->width;
317			}
318		126	break;
319			}
320
321		160	*got_frame = 1;
322
323		160	return buf_size;
324			}
325
326
327			/**
328			* closes decoder
329			* @param avctx codec context
330			* @return 0 on success or negative if fails
331			*/
332		14	static av_cold int decode_end(AVCodecContext *avctx)
333			{
334		14	FrapsContext s = (FrapsContext)avctx->priv_data;
335
336		14	av_freep(&s->tmpbuf);
337		14	return 0;
338			}
339
340
341			AVCodec ff_fraps_decoder = {
342			.name = "fraps",
343			.long_name = NULL_IF_CONFIG_SMALL("Fraps"),
344			.type = AVMEDIA_TYPE_VIDEO,
345			.id = AV_CODEC_ID_FRAPS,
346			.priv_data_size = sizeof(FrapsContext),
347			.init = decode_init,
348			.close = decode_end,
349			.decode = decode_frame,
350			.capabilities = AV_CODEC_CAP_DR1 \| AV_CODEC_CAP_FRAME_THREADS,
351			.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
352			};