1/* 2 * R210 encoder 3 * 4 * Copyright (c) 2012 Paul B Mahol 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 "bytestream.h" 26 27static av_cold int encode_init(AVCodecContext *avctx) 28{ 29 avctx->coded_frame = av_frame_alloc(); 30 31 if (!avctx->coded_frame) 32 return AVERROR(ENOMEM); 33 34 return 0; 35} 36 37static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, 38 const AVFrame *pic, int *got_packet) 39{ 40 int i, j, ret; 41 int aligned_width = FFALIGN(avctx->width, 42 avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64); 43 int pad = (aligned_width - avctx->width) * 4; 44 uint8_t *src_line; 45 uint8_t *dst; 46 47 if ((ret = ff_alloc_packet2(avctx, pkt, 4 * aligned_width * avctx->height)) < 0) 48 return ret; 49 50 avctx->coded_frame->key_frame = 1; 51 avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; 52 src_line = pic->data[0]; 53 dst = pkt->data; 54 55 for (i = 0; i < avctx->height; i++) { 56 uint16_t *src = (uint16_t *)src_line; 57 for (j = 0; j < avctx->width; j++) { 58 uint32_t pixel; 59 uint16_t r = *src++ >> 6; 60 uint16_t g = *src++ >> 6; 61 uint16_t b = *src++ >> 4; 62 if (avctx->codec_id == AV_CODEC_ID_R210) 63 pixel = (r << 20) | (g << 10) | b >> 2; 64 else 65 pixel = (r << 22) | (g << 12) | b; 66 if (avctx->codec_id == AV_CODEC_ID_AVRP) 67 bytestream_put_le32(&dst, pixel); 68 else 69 bytestream_put_be32(&dst, pixel); 70 } 71 memset(dst, 0, pad); 72 dst += pad; 73 src_line += pic->linesize[0]; 74 } 75 76 pkt->flags |= AV_PKT_FLAG_KEY; 77 *got_packet = 1; 78 return 0; 79} 80 81static av_cold int encode_close(AVCodecContext *avctx) 82{ 83 av_freep(&avctx->coded_frame); 84 85 return 0; 86} 87 88#if CONFIG_R210_ENCODER 89AVCodec ff_r210_encoder = { 90 .name = "r210", 91 .long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"), 92 .type = AVMEDIA_TYPE_VIDEO, 93 .id = AV_CODEC_ID_R210, 94 .init = encode_init, 95 .encode2 = encode_frame, 96 .close = encode_close, 97 .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE }, 98}; 99#endif 100#if CONFIG_R10K_ENCODER 101AVCodec ff_r10k_encoder = { 102 .name = "r10k", 103 .long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"), 104 .type = AVMEDIA_TYPE_VIDEO, 105 .id = AV_CODEC_ID_R10K, 106 .init = encode_init, 107 .encode2 = encode_frame, 108 .close = encode_close, 109 .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE }, 110}; 111#endif 112#if CONFIG_AVRP_ENCODER 113AVCodec ff_avrp_encoder = { 114 .name = "avrp", 115 .long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"), 116 .type = AVMEDIA_TYPE_VIDEO, 117 .id = AV_CODEC_ID_AVRP, 118 .init = encode_init, 119 .encode2 = encode_frame, 120 .close = encode_close, 121 .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE }, 122}; 123#endif 124