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 "codec_internal.h" 25#include "config_components.h" 26#include "internal.h" 27#include "libavutil/bswap.h" 28#include "libavutil/common.h" 29 30static av_cold int decode_init(AVCodecContext *avctx) 31{ 32 avctx->pix_fmt = AV_PIX_FMT_GBRP10; 33 avctx->bits_per_raw_sample = 10; 34 35 return 0; 36} 37 38static int decode_frame(AVCodecContext *avctx, AVFrame *pic, 39 int *got_frame, AVPacket *avpkt) 40{ 41 int h, w, ret; 42 const uint32_t *src = (const uint32_t *)avpkt->data; 43 int aligned_width = FFALIGN(avctx->width, 44 avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64); 45 uint8_t *g_line, *b_line, *r_line; 46 int r10 = (avctx->codec_tag & 0xFFFFFF) == MKTAG('r', '1', '0', 0); 47 int le = avctx->codec_tag == MKTAG('R', '1', '0', 'k') && 48 avctx->extradata_size >= 12 && !memcmp(&avctx->extradata[4], "DpxE", 4) && 49 !avctx->extradata[11]; 50 51 if (avpkt->size < 4 * aligned_width * avctx->height) { 52 av_log(avctx, AV_LOG_ERROR, "packet too small\n"); 53 return AVERROR_INVALIDDATA; 54 } 55 56 if ((ret = ff_get_buffer(avctx, pic, 0)) < 0) 57 return ret; 58 59 pic->pict_type = AV_PICTURE_TYPE_I; 60 pic->key_frame = 1; 61 g_line = pic->data[0]; 62 b_line = pic->data[1]; 63 r_line = pic->data[2]; 64 65 for (h = 0; h < avctx->height; h++) { 66 uint16_t *dstg = (uint16_t *)g_line; 67 uint16_t *dstb = (uint16_t *)b_line; 68 uint16_t *dstr = (uint16_t *)r_line; 69 for (w = 0; w < avctx->width; w++) { 70 uint32_t pixel; 71 uint16_t r, g, b; 72 if (avctx->codec_id == AV_CODEC_ID_AVRP || r10 || le) { 73 pixel = av_le2ne32(*src++); 74 } else { 75 pixel = av_be2ne32(*src++); 76 } 77 if (avctx->codec_id == AV_CODEC_ID_R210) { 78 b = pixel & 0x3ff; 79 g = (pixel >> 10) & 0x3ff; 80 r = (pixel >> 20) & 0x3ff; 81 } else if (r10) { 82 r = pixel & 0x3ff; 83 g = (pixel >> 10) & 0x3ff; 84 b = (pixel >> 20) & 0x3ff; 85 } else { 86 b = (pixel >> 2) & 0x3ff; 87 g = (pixel >> 12) & 0x3ff; 88 r = (pixel >> 22) & 0x3ff; 89 } 90 *dstr++ = r; 91 *dstg++ = g; 92 *dstb++ = b; 93 } 94 src += aligned_width - avctx->width; 95 g_line += pic->linesize[0]; 96 b_line += pic->linesize[1]; 97 r_line += pic->linesize[2]; 98 } 99 100 *got_frame = 1; 101 102 return avpkt->size; 103} 104 105#if CONFIG_R210_DECODER 106const FFCodec ff_r210_decoder = { 107 .p.name = "r210", 108 .p.long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"), 109 .p.type = AVMEDIA_TYPE_VIDEO, 110 .p.id = AV_CODEC_ID_R210, 111 .init = decode_init, 112 FF_CODEC_DECODE_CB(decode_frame), 113 .p.capabilities = AV_CODEC_CAP_DR1, 114 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, 115}; 116#endif 117#if CONFIG_R10K_DECODER 118const FFCodec ff_r10k_decoder = { 119 .p.name = "r10k", 120 .p.long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"), 121 .p.type = AVMEDIA_TYPE_VIDEO, 122 .p.id = AV_CODEC_ID_R10K, 123 .init = decode_init, 124 FF_CODEC_DECODE_CB(decode_frame), 125 .p.capabilities = AV_CODEC_CAP_DR1, 126 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, 127}; 128#endif 129#if CONFIG_AVRP_DECODER 130const FFCodec ff_avrp_decoder = { 131 .p.name = "avrp", 132 .p.long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"), 133 .p.type = AVMEDIA_TYPE_VIDEO, 134 .p.id = AV_CODEC_ID_AVRP, 135 .init = decode_init, 136 FF_CODEC_DECODE_CB(decode_frame), 137 .p.capabilities = AV_CODEC_CAP_DR1, 138 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, 139}; 140#endif 141