Add ff_ prefix to data symbols of encoders, decoders, hwaccel, parsers, bsf.
[libav.git] / libavcodec / r210dec.c
1 /*
2 * R210 decoder
3 *
4 * Copyright (c) 2009 Reimar Doeffinger <Reimar.Doeffinger@gmx.de>
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 #include "avcodec.h"
24 #include "libavutil/bswap.h"
25
26 static av_cold int decode_init(AVCodecContext *avctx)
27 {
28 avctx->pix_fmt = PIX_FMT_RGB48;
29 avctx->bits_per_raw_sample = 10;
30
31 avctx->coded_frame = avcodec_alloc_frame();
32
33 return 0;
34 }
35
36 static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
37 AVPacket *avpkt)
38 {
39 int h, w;
40 AVFrame *pic = avctx->coded_frame;
41 const uint32_t *src = (const uint32_t *)avpkt->data;
42 int aligned_width = FFALIGN(avctx->width, 64);
43 uint8_t *dst_line;
44
45 if (pic->data[0])
46 avctx->release_buffer(avctx, pic);
47
48 if (avpkt->size < 4 * aligned_width * avctx->height) {
49 av_log(avctx, AV_LOG_ERROR, "packet too small\n");
50 return -1;
51 }
52
53 pic->reference = 0;
54 if (avctx->get_buffer(avctx, pic) < 0)
55 return -1;
56
57 pic->pict_type = FF_I_TYPE;
58 pic->key_frame = 1;
59 dst_line = pic->data[0];
60
61 for (h = 0; h < avctx->height; h++) {
62 uint16_t *dst = (uint16_t *)dst_line;
63 for (w = 0; w < avctx->width; w++) {
64 uint32_t pixel = av_be2ne32(*src++);
65 uint16_t r, g, b;
66 if (avctx->codec_id==CODEC_ID_R210) {
67 b = pixel << 6;
68 g = (pixel >> 4) & 0xffc0;
69 r = (pixel >> 14) & 0xffc0;
70 } else {
71 b = pixel << 4;
72 g = (pixel >> 6) & 0xffc0;
73 r = (pixel >> 16) & 0xffc0;
74 }
75 *dst++ = r | (r >> 10);
76 *dst++ = g | (g >> 10);
77 *dst++ = b | (b >> 10);
78 }
79 src += aligned_width - avctx->width;
80 dst_line += pic->linesize[0];
81 }
82
83 *data_size = sizeof(AVFrame);
84 *(AVFrame*)data = *avctx->coded_frame;
85
86 return avpkt->size;
87 }
88
89 static av_cold int decode_close(AVCodecContext *avctx)
90 {
91 AVFrame *pic = avctx->coded_frame;
92 if (pic->data[0])
93 avctx->release_buffer(avctx, pic);
94 av_freep(&avctx->coded_frame);
95
96 return 0;
97 }
98
99 #if CONFIG_R210_DECODER
100 AVCodec ff_r210_decoder = {
101 "r210",
102 AVMEDIA_TYPE_VIDEO,
103 CODEC_ID_R210,
104 0,
105 decode_init,
106 NULL,
107 decode_close,
108 decode_frame,
109 CODEC_CAP_DR1,
110 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
111 };
112 #endif
113 #if CONFIG_R10K_DECODER
114 AVCodec ff_r10k_decoder = {
115 "r10k",
116 AVMEDIA_TYPE_VIDEO,
117 CODEC_ID_R10K,
118 0,
119 decode_init,
120 NULL,
121 decode_close,
122 decode_frame,
123 CODEC_CAP_DR1,
124 .long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
125 };
126 #endif