FFmpeg coverage

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavcodec/loco.c	Lines:	117	182	64.3 %
Date:	2021-01-26 11:44:58	Branches:	49	105	46.7 %


/*
 * LOCO codec
 * Copyright (c) 2005 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
 * LOCO codec.
 */

#include "avcodec.h"
#include "get_bits.h"
#include "golomb.h"
#include "internal.h"
#include "mathops.h"

enum LOCO_MODE {
    LOCO_UNKN  =  0,
    LOCO_CYUY2 = -1,
    LOCO_CRGB  = -2,
    LOCO_CRGBA = -3,
    LOCO_CYV12 = -4,
    LOCO_YUY2  =  1,
    LOCO_UYVY  =  2,
    LOCO_RGB   =  3,
    LOCO_RGBA  =  4,
    LOCO_YV12  =  5,
};

typedef struct LOCOContext {
    AVCodecContext *avctx;
    int lossy;
    enum LOCO_MODE mode;
} LOCOContext;

typedef struct RICEContext {
    GetBitContext gb;
    int save, run, run2; /* internal rice decoder state */
    int sum, count; /* sum and count for getting rice parameter */
    int lossy;
} RICEContext;

static int loco_get_rice_param(RICEContext *r)
{
    int cnt = 0;
    int val = r->count;

    while (r->sum > val && cnt < 9) {
        val <<= 1;
        cnt++;
    }

    return cnt;
}

static inline void loco_update_rice_param(RICEContext *r, int val)
{
    r->sum += val;
    r->count++;

    if (r->count == 16) {
        r->sum   >>= 1;
        r->count >>= 1;
    }
}

static inline int loco_get_rice(RICEContext *r)
{
    unsigned v;
    if (r->run > 0) { /* we have zero run */
        r->run--;
        loco_update_rice_param(r, 0);
        return 0;
    }
    if (get_bits_left(&r->gb) < 1)
        return INT_MIN;
    v = get_ur_golomb_jpegls(&r->gb, loco_get_rice_param(r), INT_MAX, 0);
    loco_update_rice_param(r, (v + 1) >> 1);
    if (!v) {
        if (r->save >= 0) {
            r->run = get_ur_golomb_jpegls(&r->gb, 2, INT_MAX, 0);
            if (r->run > 1)
                r->save += r->run + 1;
            else
                r->save -= 3;
        } else
            r->run2++;
    } else {
        v = ((v >> 1) + r->lossy) ^ -(v & 1);
        if (r->run2 > 0) {
            if (r->run2 > 2)
                r->save += r->run2;
            else
                r->save -= 3;
            r->run2 = 0;
        }
    }

    return v;
}

/* LOCO main predictor - LOCO-I/JPEG-LS predictor */
static inline int loco_predict(uint8_t* data, int stride)
{
    int a, b, c;

    a = data[-stride];
    b = data[-1];
    c = data[-stride - 1];

    return mid_pred(a, a + b - c, b);
}

static int loco_decode_plane(LOCOContext *l, uint8_t *data, int width, int height,
                             int stride, const uint8_t *buf, int buf_size)
{
    RICEContext rc;
    unsigned val;
    int ret;
    int i, j;

    if(buf_size<=0)
        return -1;

    if ((ret = init_get_bits8(&rc.gb, buf, buf_size)) < 0)
        return ret;

    rc.save  = 0;
    rc.run   = 0;
    rc.run2  = 0;
    rc.lossy = l->lossy;

    rc.sum   = 8;
    rc.count = 1;

    /* restore top left pixel */
    val     = loco_get_rice(&rc);
    data[0] = 128 + val;
    /* restore top line */
    for (i = 1; i < width; i++) {
        val = loco_get_rice(&rc);
        if (val == INT_MIN)
           return AVERROR_INVALIDDATA;
        data[i] = data[i - 1] + val;
    }
    data += stride;
    for (j = 1; j < height; j++) {
        /* restore left column */
        val = loco_get_rice(&rc);
        if (val == INT_MIN)
           return AVERROR_INVALIDDATA;
        data[0] = data[-stride] + val;
        /* restore all other pixels */
        for (i = 1; i < width; i++) {
            val = loco_get_rice(&rc);
            if (val == INT_MIN)
                return -1;
            data[i] = loco_predict(&data[i], stride) + val;
        }
        data += stride;
    }

    return (get_bits_count(&rc.gb) + 7) >> 3;
}

static void rotate_faulty_loco(uint8_t *data, int width, int height, int stride)
{
    int y;

    for (y=1; y<height; y++) {
        if (width>=y) {
            memmove(data + y*stride,
                    data + y*(stride + 1),
                    (width-y));
            if (y+1 < height)
                memmove(data + y*stride + (width-y),
                        data + (y+1)*stride, y);
        }
    }
}

static int decode_frame(AVCodecContext *avctx,
                        void *data, int *got_frame,
                        AVPacket *avpkt)
{
    LOCOContext * const l = avctx->priv_data;
    const uint8_t *buf    = avpkt->data;
    int buf_size          = avpkt->size;
    AVFrame * const p     = data;
    int decoded, ret;

    if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
        return ret;
    p->key_frame = 1;

#define ADVANCE_BY_DECODED do { \
    if (decoded < 0 || decoded >= buf_size) goto buf_too_small; \
    buf += decoded; buf_size -= decoded; \
} while(0)
    switch(l->mode) {
    case LOCO_CYUY2: case LOCO_YUY2: case LOCO_UYVY:
        decoded = loco_decode_plane(l, p->data[0], avctx->width, avctx->height,
                                    p->linesize[0], buf, buf_size);
        ADVANCE_BY_DECODED;
        decoded = loco_decode_plane(l, p->data[1], avctx->width / 2, avctx->height,
                                    p->linesize[1], buf, buf_size);
        ADVANCE_BY_DECODED;
        decoded = loco_decode_plane(l, p->data[2], avctx->width / 2, avctx->height,
                                    p->linesize[2], buf, buf_size);
        break;
    case LOCO_CYV12: case LOCO_YV12:
        decoded = loco_decode_plane(l, p->data[0], avctx->width, avctx->height,
                                    p->linesize[0], buf, buf_size);
        ADVANCE_BY_DECODED;
        decoded = loco_decode_plane(l, p->data[2], avctx->width / 2, avctx->height / 2,
                                    p->linesize[2], buf, buf_size);
        ADVANCE_BY_DECODED;
        decoded = loco_decode_plane(l, p->data[1], avctx->width / 2, avctx->height / 2,
                                    p->linesize[1], buf, buf_size);
        break;
    case LOCO_CRGB: case LOCO_RGB:
        decoded = loco_decode_plane(l, p->data[1] + p->linesize[1]*(avctx->height-1), avctx->width, avctx->height,
                                    -p->linesize[1], buf, buf_size);
        ADVANCE_BY_DECODED;
        decoded = loco_decode_plane(l, p->data[0] + p->linesize[0]*(avctx->height-1), avctx->width, avctx->height,
                                    -p->linesize[0], buf, buf_size);
        ADVANCE_BY_DECODED;
        decoded = loco_decode_plane(l, p->data[2] + p->linesize[2]*(avctx->height-1), avctx->width, avctx->height,
                                    -p->linesize[2], buf, buf_size);
        if (avctx->width & 1) {
            rotate_faulty_loco(p->data[0] + p->linesize[0]*(avctx->height-1), avctx->width, avctx->height, -p->linesize[0]);
            rotate_faulty_loco(p->data[1] + p->linesize[1]*(avctx->height-1), avctx->width, avctx->height, -p->linesize[1]);
            rotate_faulty_loco(p->data[2] + p->linesize[2]*(avctx->height-1), avctx->width, avctx->height, -p->linesize[2]);
        }
        break;
    case LOCO_CRGBA:
    case LOCO_RGBA:
        decoded = loco_decode_plane(l, p->data[1] + p->linesize[1]*(avctx->height-1), avctx->width, avctx->height,
                                    -p->linesize[1], buf, buf_size);
        ADVANCE_BY_DECODED;
        decoded = loco_decode_plane(l, p->data[0] + p->linesize[0]*(avctx->height-1), avctx->width, avctx->height,
                                    -p->linesize[0], buf, buf_size);
        ADVANCE_BY_DECODED;
        decoded = loco_decode_plane(l, p->data[2] + p->linesize[2]*(avctx->height-1), avctx->width, avctx->height,
                                    -p->linesize[2], buf, buf_size);
        ADVANCE_BY_DECODED;
        decoded = loco_decode_plane(l, p->data[3] + p->linesize[3]*(avctx->height-1), avctx->width, avctx->height,
                                    -p->linesize[3], buf, buf_size);
        break;
    default:
        av_assert0(0);
    }

    if (decoded < 0 || decoded > buf_size)
        goto buf_too_small;
    buf_size -= decoded;

    *got_frame      = 1;

    return avpkt->size - buf_size;
buf_too_small:
    av_log(avctx, AV_LOG_ERROR, "Input data too small.\n");
    return AVERROR(EINVAL);
}

static av_cold int decode_init(AVCodecContext *avctx)
{
    LOCOContext * const l = avctx->priv_data;
    int version;

    l->avctx = avctx;
    if (avctx->extradata_size < 12) {
        av_log(avctx, AV_LOG_ERROR, "Extradata size must be >= 12 instead of %i\n",
               avctx->extradata_size);
        return AVERROR_INVALIDDATA;
    }
    version = AV_RL32(avctx->extradata);
    switch (version) {
    case 1:
        l->lossy = 0;
        break;
    case 2:
        l->lossy = AV_RL32(avctx->extradata + 8);
        break;
    default:
        l->lossy = AV_RL32(avctx->extradata + 8);
        avpriv_request_sample(avctx, "LOCO codec version %i", version);
    }

    if (l->lossy > 65536U) {
        av_log(avctx, AV_LOG_ERROR, "lossy %i is too large\n", l->lossy);
        return AVERROR_INVALIDDATA;
    }

    l->mode = AV_RL32(avctx->extradata + 4);
    switch (l->mode) {
    case LOCO_CYUY2:
    case LOCO_YUY2:
    case LOCO_UYVY:
        avctx->pix_fmt = AV_PIX_FMT_YUV422P;
        break;
    case LOCO_CRGB:
    case LOCO_RGB:
        avctx->pix_fmt = AV_PIX_FMT_GBRP;
        break;
    case LOCO_CYV12:
    case LOCO_YV12:
        avctx->pix_fmt = AV_PIX_FMT_YUV420P;
        break;
    case LOCO_CRGBA:
    case LOCO_RGBA:
        avctx->pix_fmt = AV_PIX_FMT_GBRAP;
        break;
    default:
        av_log(avctx, AV_LOG_INFO, "Unknown colorspace, index = %i\n", l->mode);
        return AVERROR_INVALIDDATA;
    }
    if (avctx->debug & FF_DEBUG_PICT_INFO)
        av_log(avctx, AV_LOG_INFO, "lossy:%i, version:%i, mode: %i\n", l->lossy, version, l->mode);

    return 0;
}

AVCodec ff_loco_decoder = {
    .name           = "loco",
    .long_name      = NULL_IF_CONFIG_SMALL("LOCO"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_LOCO,
    .priv_data_size = sizeof(LOCOContext),
    .init           = decode_init,
    .decode         = decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1,
    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE,
};


Generated by: GCOVR (Version 4.2)

Line	Branch	Exec	Source
1			/*
2			* LOCO codec
3			* Copyright (c) 2005 Konstantin Shishkov
4			*
5			* This file is part of FFmpeg.
6			*
7			* FFmpeg is free software; you can redistribute it and/or
8			* modify it under the terms of the GNU Lesser General Public
9			* License as published by the Free Software Foundation; either
10			* version 2.1 of the License, or (at your option) any later version.
11			*
12			* FFmpeg is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15			* Lesser General Public License for more details.
16			*
17			* You should have received a copy of the GNU Lesser General Public
18			* License along with FFmpeg; if not, write to the Free Software
19			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20			*/
21
22			/**
23			* @file
24			* LOCO codec.
25			*/
26
27			#include "avcodec.h"
28			#include "get_bits.h"
29			#include "golomb.h"
30			#include "internal.h"
31			#include "mathops.h"
32
33			enum LOCO_MODE {
34			LOCO_UNKN = 0,
35			LOCO_CYUY2 = -1,
36			LOCO_CRGB = -2,
37			LOCO_CRGBA = -3,
38			LOCO_CYV12 = -4,
39			LOCO_YUY2 = 1,
40			LOCO_UYVY = 2,
41			LOCO_RGB = 3,
42			LOCO_RGBA = 4,
43			LOCO_YV12 = 5,
44			};
45
46			typedef struct LOCOContext {
47			AVCodecContext *avctx;
48			int lossy;
49			enum LOCO_MODE mode;
50			} LOCOContext;
51
52			typedef struct RICEContext {
53			GetBitContext gb;
54			int save, run, run2; /* internal rice decoder state */
55			int sum, count; /* sum and count for getting rice parameter */
56			int lossy;
57			} RICEContext;
58
59		500785	static int loco_get_rice_param(RICEContext *r)
60			{
61		500785	int cnt = 0;
62		500785	int val = r->count;
63
64	✓✓✓✗	2389200	while (r->sum > val && cnt < 9) {
65		1888415	val <<= 1;
66		1888415	cnt++;
67			}
68
69		500785	return cnt;
70			}
71
72		505344	static inline void loco_update_rice_param(RICEContext *r, int val)
73			{
74		505344	r->sum += val;
75		505344	r->count++;
76
77	✓✓	505344	if (r->count == 16) {
78		63144	r->sum >>= 1;
79		63144	r->count >>= 1;
80			}
81		505344	}
82
83		505344	static inline int loco_get_rice(RICEContext *r)
84			{
85			unsigned v;
86	✓✓	505344	if (r->run > 0) { /* we have zero run */
87		4559	r->run--;
88		4559	loco_update_rice_param(r, 0);
89		4559	return 0;
90			}
91	✗✓	500785	if (get_bits_left(&r->gb) < 1)
92			return INT_MIN;
93		500785	v = get_ur_golomb_jpegls(&r->gb, loco_get_rice_param(r), INT_MAX, 0);
94		500785	loco_update_rice_param(r, (v + 1) >> 1);
95	✓✓	500785	if (!v) {
96	✓✓	49474	if (r->save >= 0) {
97		2574	r->run = get_ur_golomb_jpegls(&r->gb, 2, INT_MAX, 0);
98	✓✓	2574	if (r->run > 1)
99		901	r->save += r->run + 1;
100			else
101		1673	r->save -= 3;
102			} else
103		46900	r->run2++;
104			} else {
105		451311	v = ((v >> 1) + r->lossy) ^ -(v & 1);
106	✓✓	451311	if (r->run2 > 0) {
107	✓✓	27417	if (r->run2 > 2)
108		3721	r->save += r->run2;
109			else
110		23696	r->save -= 3;
111		27417	r->run2 = 0;
112			}
113			}
114
115		500785	return v;
116			}
117
118			/* LOCO main predictor - LOCO-I/JPEG-LS predictor */
119		498348	static inline int loco_predict(uint8_t* data, int stride)
120			{
121			int a, b, c;
122
123		498348	a = data[-stride];
124		498348	b = data[-1];
125		498348	c = data[-stride - 1];
126
127		498348	return mid_pred(a, a + b - c, b);
128			}
129
130		24	static int loco_decode_plane(LOCOContext l, uint8_t data, int width, int height,
131			int stride, const uint8_t *buf, int buf_size)
132			{
133			RICEContext rc;
134			unsigned val;
135			int ret;
136			int i, j;
137
138	✗✓	24	if(buf_size<=0)
139			return -1;
140
141	✗✓	24	if ((ret = init_get_bits8(&rc.gb, buf, buf_size)) < 0)
142			return ret;
143
144		24	rc.save = 0;
145		24	rc.run = 0;
146		24	rc.run2 = 0;
147		24	rc.lossy = l->lossy;
148
149		24	rc.sum = 8;
150		24	rc.count = 1;
151
152			/* restore top left pixel */
153		24	val = loco_get_rice(&rc);
154		24	data[0] = 128 + val;
155			/* restore top line */
156	✓✓	3948	for (i = 1; i < width; i++) {
157		3924	val = loco_get_rice(&rc);
158	✗✓	3924	if (val == INT_MIN)
159			return AVERROR_INVALIDDATA;
160		3924	data[i] = data[i - 1] + val;
161			}
162		24	data += stride;
163	✓✓	3072	for (j = 1; j < height; j++) {
164			/* restore left column */
165		3048	val = loco_get_rice(&rc);
166	✗✓	3048	if (val == INT_MIN)
167			return AVERROR_INVALIDDATA;
168		3048	data[0] = data[-stride] + val;
169			/* restore all other pixels */
170	✓✓	501396	for (i = 1; i < width; i++) {
171		498348	val = loco_get_rice(&rc);
172	✗✓	498348	if (val == INT_MIN)
173			return -1;
174		498348	data[i] = loco_predict(&data[i], stride) + val;
175			}
176		3048	data += stride;
177			}
178
179		24	return (get_bits_count(&rc.gb) + 7) >> 3;
180			}
181
182			static void rotate_faulty_loco(uint8_t *data, int width, int height, int stride)
183			{
184			int y;
185
186			for (y=1; y<height; y++) {
187			if (width>=y) {
188			memmove(data + y*stride,
189			data + y*(stride + 1),
190			(width-y));
191			if (y+1 < height)
192			memmove(data + y*stride + (width-y),
193			data + (y+1)*stride, y);
194			}
195			}
196			}
197
198		8	static int decode_frame(AVCodecContext *avctx,
199			void data, int got_frame,
200			AVPacket *avpkt)
201			{
202		8	LOCOContext * const l = avctx->priv_data;
203		8	const uint8_t *buf = avpkt->data;
204		8	int buf_size = avpkt->size;
205		8	AVFrame * const p = data;
206			int decoded, ret;
207
208	✗✓	8	if ((ret = ff_get_buffer(avctx, p, 0)) < 0)
209			return ret;
210		8	p->key_frame = 1;
211
212			#define ADVANCE_BY_DECODED do { \
213			if (decoded < 0 \|\| decoded >= buf_size) goto buf_too_small; \
214			buf += decoded; buf_size -= decoded; \
215			} while(0)
216	✓✗✓✗ ✗	8	switch(l->mode) {
217		3	case LOCO_CYUY2: case LOCO_YUY2: case LOCO_UYVY:
218		3	decoded = loco_decode_plane(l, p->data[0], avctx->width, avctx->height,
219			p->linesize[0], buf, buf_size);
220	✓✗✗✓	3	ADVANCE_BY_DECODED;
221		3	decoded = loco_decode_plane(l, p->data[1], avctx->width / 2, avctx->height,
222			p->linesize[1], buf, buf_size);
223	✓✗✗✓	3	ADVANCE_BY_DECODED;
224		3	decoded = loco_decode_plane(l, p->data[2], avctx->width / 2, avctx->height,
225			p->linesize[2], buf, buf_size);
226		3	break;
227			case LOCO_CYV12: case LOCO_YV12:
228			decoded = loco_decode_plane(l, p->data[0], avctx->width, avctx->height,
229			p->linesize[0], buf, buf_size);
230			ADVANCE_BY_DECODED;
231			decoded = loco_decode_plane(l, p->data[2], avctx->width / 2, avctx->height / 2,
232			p->linesize[2], buf, buf_size);
233			ADVANCE_BY_DECODED;
234			decoded = loco_decode_plane(l, p->data[1], avctx->width / 2, avctx->height / 2,
235			p->linesize[1], buf, buf_size);
236			break;
237		5	case LOCO_CRGB: case LOCO_RGB:
238		5	decoded = loco_decode_plane(l, p->data[1] + p->linesize[1]*(avctx->height-1), avctx->width, avctx->height,
239		5	-p->linesize[1], buf, buf_size);
240	✓✗✗✓	5	ADVANCE_BY_DECODED;
241		5	decoded = loco_decode_plane(l, p->data[0] + p->linesize[0]*(avctx->height-1), avctx->width, avctx->height,
242		5	-p->linesize[0], buf, buf_size);
243	✓✗✗✓	5	ADVANCE_BY_DECODED;
244		5	decoded = loco_decode_plane(l, p->data[2] + p->linesize[2]*(avctx->height-1), avctx->width, avctx->height,
245		5	-p->linesize[2], buf, buf_size);
246	✗✓	5	if (avctx->width & 1) {
247			rotate_faulty_loco(p->data[0] + p->linesize[0]*(avctx->height-1), avctx->width, avctx->height, -p->linesize[0]);
248			rotate_faulty_loco(p->data[1] + p->linesize[1]*(avctx->height-1), avctx->width, avctx->height, -p->linesize[1]);
249			rotate_faulty_loco(p->data[2] + p->linesize[2]*(avctx->height-1), avctx->width, avctx->height, -p->linesize[2]);
250			}
251		5	break;
252			case LOCO_CRGBA:
253			case LOCO_RGBA:
254			decoded = loco_decode_plane(l, p->data[1] + p->linesize[1]*(avctx->height-1), avctx->width, avctx->height,
255			-p->linesize[1], buf, buf_size);
256			ADVANCE_BY_DECODED;
257			decoded = loco_decode_plane(l, p->data[0] + p->linesize[0]*(avctx->height-1), avctx->width, avctx->height,
258			-p->linesize[0], buf, buf_size);
259			ADVANCE_BY_DECODED;
260			decoded = loco_decode_plane(l, p->data[2] + p->linesize[2]*(avctx->height-1), avctx->width, avctx->height,
261			-p->linesize[2], buf, buf_size);
262			ADVANCE_BY_DECODED;
263			decoded = loco_decode_plane(l, p->data[3] + p->linesize[3]*(avctx->height-1), avctx->width, avctx->height,
264			-p->linesize[3], buf, buf_size);
265			break;
266			default:
267			av_assert0(0);
268			}
269
270	✓✗✗✓	8	if (decoded < 0 \|\| decoded > buf_size)
271			goto buf_too_small;
272		8	buf_size -= decoded;
273
274		8	*got_frame = 1;
275
276		8	return avpkt->size - buf_size;
277			buf_too_small:
278			av_log(avctx, AV_LOG_ERROR, "Input data too small.\n");
279			return AVERROR(EINVAL);
280			}
281
282		4	static av_cold int decode_init(AVCodecContext *avctx)
283			{
284		4	LOCOContext * const l = avctx->priv_data;
285			int version;
286
287		4	l->avctx = avctx;
288	✗✓	4	if (avctx->extradata_size < 12) {
289			av_log(avctx, AV_LOG_ERROR, "Extradata size must be >= 12 instead of %i\n",
290			avctx->extradata_size);
291			return AVERROR_INVALIDDATA;
292			}
293		4	version = AV_RL32(avctx->extradata);
294	✗✓✗	4	switch (version) {
295			case 1:
296			l->lossy = 0;
297			break;
298		4	case 2:
299		4	l->lossy = AV_RL32(avctx->extradata + 8);
300		4	break;
301			default:
302			l->lossy = AV_RL32(avctx->extradata + 8);
303			avpriv_request_sample(avctx, "LOCO codec version %i", version);
304			}
305
306	✗✓	4	if (l->lossy > 65536U) {
307			av_log(avctx, AV_LOG_ERROR, "lossy %i is too large\n", l->lossy);
308			return AVERROR_INVALIDDATA;
309			}
310
311		4	l->mode = AV_RL32(avctx->extradata + 4);
312	✓✓✗✗ ✗	4	switch (l->mode) {
313		2	case LOCO_CYUY2:
314			case LOCO_YUY2:
315			case LOCO_UYVY:
316		2	avctx->pix_fmt = AV_PIX_FMT_YUV422P;
317		2	break;
318		2	case LOCO_CRGB:
319			case LOCO_RGB:
320		2	avctx->pix_fmt = AV_PIX_FMT_GBRP;
321		2	break;
322			case LOCO_CYV12:
323			case LOCO_YV12:
324			avctx->pix_fmt = AV_PIX_FMT_YUV420P;
325			break;
326			case LOCO_CRGBA:
327			case LOCO_RGBA:
328			avctx->pix_fmt = AV_PIX_FMT_GBRAP;
329			break;
330			default:
331			av_log(avctx, AV_LOG_INFO, "Unknown colorspace, index = %i\n", l->mode);
332			return AVERROR_INVALIDDATA;
333			}
334	✗✓	4	if (avctx->debug & FF_DEBUG_PICT_INFO)
335			av_log(avctx, AV_LOG_INFO, "lossy:%i, version:%i, mode: %i\n", l->lossy, version, l->mode);
336
337		4	return 0;
338			}
339
340			AVCodec ff_loco_decoder = {
341			.name = "loco",
342			.long_name = NULL_IF_CONFIG_SMALL("LOCO"),
343			.type = AVMEDIA_TYPE_VIDEO,
344			.id = AV_CODEC_ID_LOCO,
345			.priv_data_size = sizeof(LOCOContext),
346			.init = decode_init,
347			.decode = decode_frame,
348			.capabilities = AV_CODEC_CAP_DR1,
349			.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
350			};