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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * R210 decoder |
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| 3 | * |
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| 4 | * Copyright (c) 2009 Reimar Doeffinger |
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| 5 | * |
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| 6 | * This file is part of FFmpeg. |
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| 7 | * |
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| 8 | * FFmpeg is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU Lesser General Public |
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| 10 | * License as published by the Free Software Foundation; either |
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| 11 | * version 2.1 of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * FFmpeg is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 16 | * Lesser General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU Lesser General Public |
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| 19 | * License along with FFmpeg; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 21 | */ |
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| 22 | |||
| 23 | #include "avcodec.h" |
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| 24 | #include "internal.h" |
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| 25 | #include "libavutil/bswap.h" |
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| 26 | #include "libavutil/common.h" |
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| 27 | |||
| 28 | static av_cold int decode_init(AVCodecContext *avctx) |
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| 29 | { |
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| 30 | avctx->pix_fmt = AV_PIX_FMT_RGB48; |
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| 31 | avctx->bits_per_raw_sample = 10; |
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| 32 | |||
| 33 | return 0; |
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| 34 | } |
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| 35 | |||
| 36 | static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, |
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| 37 | AVPacket *avpkt) |
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| 38 | { |
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| 39 | int h, w, ret; |
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| 40 | AVFrame *pic = data; |
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| 41 | const uint32_t *src = (const uint32_t *)avpkt->data; |
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| 42 | int aligned_width = FFALIGN(avctx->width, |
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| 43 | avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64); |
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| 44 | uint8_t *dst_line; |
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| 45 | |||
| 46 | if (avpkt->size < 4 * aligned_width * avctx->height) { |
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| 47 | av_log(avctx, AV_LOG_ERROR, "packet too small\n"); |
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| 48 | return AVERROR_INVALIDDATA; |
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| 49 | } |
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| 50 | |||
| 51 | if ((ret = ff_get_buffer(avctx, pic, 0)) < 0) |
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| 52 | return ret; |
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| 53 | |||
| 54 | pic->pict_type = AV_PICTURE_TYPE_I; |
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| 55 | pic->key_frame = 1; |
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| 56 | dst_line = pic->data[0]; |
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| 57 | |||
| 58 | for (h = 0; h < avctx->height; h++) { |
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| 59 | uint16_t *dst = (uint16_t *)dst_line; |
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| 60 | for (w = 0; w < avctx->width; w++) { |
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| 61 | uint32_t pixel; |
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| 62 | uint16_t r, g, b; |
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| 63 | if (avctx->codec_id==AV_CODEC_ID_AVRP) { |
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| 64 | pixel = av_le2ne32(*src++); |
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| 65 | } else { |
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| 66 | pixel = av_be2ne32(*src++); |
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| 67 | } |
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| 68 | if (avctx->codec_id==AV_CODEC_ID_R210) { |
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| 69 | b = pixel << 6; |
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| 70 | g = (pixel >> 4) & 0xffc0; |
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| 71 | r = (pixel >> 14) & 0xffc0; |
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| 72 | } else { |
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| 73 | b = pixel << 4; |
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| 74 | g = (pixel >> 6) & 0xffc0; |
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| 75 | r = (pixel >> 16) & 0xffc0; |
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| 76 | } |
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| 77 | *dst++ = r | (r >> 10); |
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| 78 | *dst++ = g | (g >> 10); |
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| 79 | *dst++ = b | (b >> 10); |
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| 80 | } |
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| 81 | src += aligned_width - avctx->width; |
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| 82 | dst_line += pic->linesize[0]; |
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| 83 | } |
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| 84 | |||
| 85 | *got_frame = 1; |
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| 86 | |||
| 87 | return avpkt->size; |
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| 88 | } |
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| 89 | |||
| 90 | #if CONFIG_R210_DECODER |
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| 91 | AVCodec ff_r210_decoder = { |
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| 92 | .name = "r210", |
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| 93 | .long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"), |
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| 94 | .type = AVMEDIA_TYPE_VIDEO, |
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| 95 | .id = AV_CODEC_ID_R210, |
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| 96 | .init = decode_init, |
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| 97 | .decode = decode_frame, |
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| 98 | .capabilities = CODEC_CAP_DR1, |
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| 99 | }; |
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| 100 | #endif |
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| 101 | #if CONFIG_R10K_DECODER |
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| 102 | AVCodec ff_r10k_decoder = { |
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| 103 | .name = "r10k", |
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| 104 | .long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"), |
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| 105 | .type = AVMEDIA_TYPE_VIDEO, |
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| 106 | .id = AV_CODEC_ID_R10K, |
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| 107 | .init = decode_init, |
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| 108 | .decode = decode_frame, |
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| 109 | .capabilities = CODEC_CAP_DR1, |
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| 110 | }; |
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| 111 | #endif |
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| 112 | #if CONFIG_AVRP_DECODER |
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| 113 | AVCodec ff_avrp_decoder = { |
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| 114 | .name = "avrp", |
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| 115 | .long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"), |
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| 116 | .type = AVMEDIA_TYPE_VIDEO, |
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| 117 | .id = AV_CODEC_ID_AVRP, |
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| 118 | .init = decode_init, |
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| 119 | .decode = decode_frame, |
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| 120 | .capabilities = CODEC_CAP_DR1, |
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| 121 | }; |
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| 122 | #endif |