1/* 2 * v410 encoder 3 * 4 * Copyright (c) 2011 Derek Buitenhuis 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 "libavutil/common.h" 24#include "libavutil/intreadwrite.h" 25#include "avcodec.h" 26#include "codec_internal.h" 27#include "encode.h" 28#include "internal.h" 29 30static av_cold int v410_encode_init(AVCodecContext *avctx) 31{ 32 if (avctx->width & 1) { 33 av_log(avctx, AV_LOG_ERROR, "v410 requires width to be even.\n"); 34 return AVERROR_INVALIDDATA; 35 } 36 37 avctx->bits_per_coded_sample = 32; 38 avctx->bit_rate = ff_guess_coded_bitrate(avctx); 39 40 return 0; 41} 42 43static int v410_encode_frame(AVCodecContext *avctx, AVPacket *pkt, 44 const AVFrame *pic, int *got_packet) 45{ 46 uint8_t *dst; 47 uint16_t *y, *u, *v; 48 uint32_t val; 49 int i, j, ret; 50 51 ret = ff_get_encode_buffer(avctx, pkt, avctx->width * avctx->height * 4, 0); 52 if (ret < 0) 53 return ret; 54 dst = pkt->data; 55 56 y = (uint16_t *)pic->data[0]; 57 u = (uint16_t *)pic->data[1]; 58 v = (uint16_t *)pic->data[2]; 59 60 for (i = 0; i < avctx->height; i++) { 61 for (j = 0; j < avctx->width; j++) { 62 val = u[j] << 2; 63 val |= y[j] << 12; 64 val |= (uint32_t) v[j] << 22; 65 AV_WL32(dst, val); 66 dst += 4; 67 } 68 y += pic->linesize[0] >> 1; 69 u += pic->linesize[1] >> 1; 70 v += pic->linesize[2] >> 1; 71 } 72 73 *got_packet = 1; 74 return 0; 75} 76 77const FFCodec ff_v410_encoder = { 78 .p.name = "v410", 79 .p.long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:4:4 10-bit"), 80 .p.type = AVMEDIA_TYPE_VIDEO, 81 .p.id = AV_CODEC_ID_V410, 82 .p.capabilities = AV_CODEC_CAP_DR1, 83 .init = v410_encode_init, 84 FF_CODEC_ENCODE_CB(v410_encode_frame), 85 .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV444P10, AV_PIX_FMT_NONE }, 86 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, 87}; 88