| /* |
| * v410 encoder |
| * |
| * Copyright (c) 2011 Derek Buitenhuis |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/common.h" |
| #include "libavutil/intreadwrite.h" |
| #include "avcodec.h" |
| #include "internal.h" |
| |
| static av_cold int v410_encode_init(AVCodecContext *avctx) |
| { |
| if (avctx->width & 1) { |
| av_log(avctx, AV_LOG_ERROR, "v410 requires width to be even.\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| avctx->bits_per_coded_sample = 32; |
| avctx->bit_rate = ff_guess_coded_bitrate(avctx); |
| |
| return 0; |
| } |
| |
| static int v410_encode_frame(AVCodecContext *avctx, AVPacket *pkt, |
| const AVFrame *pic, int *got_packet) |
| { |
| uint8_t *dst; |
| uint16_t *y, *u, *v; |
| uint32_t val; |
| int i, j, ret; |
| |
| if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 4, |
| avctx->width * avctx->height * 4)) < 0) |
| return ret; |
| dst = pkt->data; |
| |
| #if FF_API_CODED_FRAME |
| FF_DISABLE_DEPRECATION_WARNINGS |
| avctx->coded_frame->key_frame = 1; |
| avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; |
| FF_ENABLE_DEPRECATION_WARNINGS |
| #endif |
| |
| y = (uint16_t *)pic->data[0]; |
| u = (uint16_t *)pic->data[1]; |
| v = (uint16_t *)pic->data[2]; |
| |
| for (i = 0; i < avctx->height; i++) { |
| for (j = 0; j < avctx->width; j++) { |
| val = u[j] << 2; |
| val |= y[j] << 12; |
| val |= (uint32_t) v[j] << 22; |
| AV_WL32(dst, val); |
| dst += 4; |
| } |
| y += pic->linesize[0] >> 1; |
| u += pic->linesize[1] >> 1; |
| v += pic->linesize[2] >> 1; |
| } |
| |
| pkt->flags |= AV_PKT_FLAG_KEY; |
| *got_packet = 1; |
| return 0; |
| } |
| |
| AVCodec ff_v410_encoder = { |
| .name = "v410", |
| .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:4:4 10-bit"), |
| .type = AVMEDIA_TYPE_VIDEO, |
| .id = AV_CODEC_ID_V410, |
| .init = v410_encode_init, |
| .encode2 = v410_encode_frame, |
| .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV444P10, AV_PIX_FMT_NONE }, |
| }; |