blob: dbc94c76bd3ce5a84cbb3b725e930d7d02b01d79
| 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 "internal.h" |
| 25 | #include "libavutil/bswap.h" |
| 26 | #include "libavutil/common.h" |
| 27 | |
| 28 | static av_cold int decode_init(AVCodecContext *avctx) |
| 29 | { |
| 30 | if ((avctx->codec_tag & 0xFFFFFF) == MKTAG('r', '1', '0', 0)) { |
| 31 | avctx->pix_fmt = AV_PIX_FMT_BGR48; |
| 32 | } else { |
| 33 | avctx->pix_fmt = AV_PIX_FMT_RGB48; |
| 34 | } |
| 35 | avctx->bits_per_raw_sample = 10; |
| 36 | |
| 37 | return 0; |
| 38 | } |
| 39 | |
| 40 | static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, |
| 41 | AVPacket *avpkt) |
| 42 | { |
| 43 | int h, w, ret; |
| 44 | AVFrame *pic = data; |
| 45 | const uint32_t *src = (const uint32_t *)avpkt->data; |
| 46 | int aligned_width = FFALIGN(avctx->width, |
| 47 | avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64); |
| 48 | uint8_t *dst_line; |
| 49 | int r10 = (avctx->codec_tag & 0xFFFFFF) == MKTAG('r', '1', '0', 0); |
| 50 | int le = avctx->codec_tag == MKTAG('R', '1', '0', 'k') && |
| 51 | avctx->extradata_size >= 12 && !memcmp(&avctx->extradata[4], "DpxE", 4) && |
| 52 | !avctx->extradata[11]; |
| 53 | |
| 54 | if (avpkt->size < 4 * aligned_width * avctx->height) { |
| 55 | av_log(avctx, AV_LOG_ERROR, "packet too small\n"); |
| 56 | return AVERROR_INVALIDDATA; |
| 57 | } |
| 58 | |
| 59 | if ((ret = ff_get_buffer(avctx, pic, 0)) < 0) |
| 60 | return ret; |
| 61 | |
| 62 | pic->pict_type = AV_PICTURE_TYPE_I; |
| 63 | pic->key_frame = 1; |
| 64 | dst_line = pic->data[0]; |
| 65 | |
| 66 | for (h = 0; h < avctx->height; h++) { |
| 67 | uint16_t *dst = (uint16_t *)dst_line; |
| 68 | for (w = 0; w < avctx->width; w++) { |
| 69 | uint32_t pixel; |
| 70 | uint16_t r, g, b; |
| 71 | if (avctx->codec_id == AV_CODEC_ID_AVRP || r10 || le) { |
| 72 | pixel = av_le2ne32(*src++); |
| 73 | } else { |
| 74 | pixel = av_be2ne32(*src++); |
| 75 | } |
| 76 | if (avctx->codec_id == AV_CODEC_ID_R210 || r10) { |
| 77 | b = pixel << 6; |
| 78 | g = (pixel >> 4) & 0xffc0; |
| 79 | r = (pixel >> 14) & 0xffc0; |
| 80 | } else { |
| 81 | b = (pixel << 4) & 0xffc0; |
| 82 | g = (pixel >> 6) & 0xffc0; |
| 83 | r = (pixel >> 16) & 0xffc0; |
| 84 | } |
| 85 | *dst++ = r | (r >> 10); |
| 86 | *dst++ = g | (g >> 10); |
| 87 | *dst++ = b | (b >> 10); |
| 88 | } |
| 89 | src += aligned_width - avctx->width; |
| 90 | dst_line += pic->linesize[0]; |
| 91 | } |
| 92 | |
| 93 | *got_frame = 1; |
| 94 | |
| 95 | return avpkt->size; |
| 96 | } |
| 97 | |
| 98 | #if CONFIG_R210_DECODER |
| 99 | AVCodec ff_r210_decoder = { |
| 100 | .name = "r210", |
| 101 | .long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"), |
| 102 | .type = AVMEDIA_TYPE_VIDEO, |
| 103 | .id = AV_CODEC_ID_R210, |
| 104 | .init = decode_init, |
| 105 | .decode = decode_frame, |
| 106 | .capabilities = AV_CODEC_CAP_DR1, |
| 107 | .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, |
| 108 | }; |
| 109 | #endif |
| 110 | #if CONFIG_R10K_DECODER |
| 111 | AVCodec ff_r10k_decoder = { |
| 112 | .name = "r10k", |
| 113 | .long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"), |
| 114 | .type = AVMEDIA_TYPE_VIDEO, |
| 115 | .id = AV_CODEC_ID_R10K, |
| 116 | .init = decode_init, |
| 117 | .decode = decode_frame, |
| 118 | .capabilities = AV_CODEC_CAP_DR1, |
| 119 | .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, |
| 120 | }; |
| 121 | #endif |
| 122 | #if CONFIG_AVRP_DECODER |
| 123 | AVCodec ff_avrp_decoder = { |
| 124 | .name = "avrp", |
| 125 | .long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"), |
| 126 | .type = AVMEDIA_TYPE_VIDEO, |
| 127 | .id = AV_CODEC_ID_AVRP, |
| 128 | .init = decode_init, |
| 129 | .decode = decode_frame, |
| 130 | .capabilities = AV_CODEC_CAP_DR1, |
| 131 | .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, |
| 132 | }; |
| 133 | #endif |
| 134 |