mirror of
https://github.com/FFmpeg/FFmpeg.git
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87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
/*
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* v410 encoder
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*
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* Copyright (c) 2011 Derek Buitenhuis
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/common.h"
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#include "libavutil/intreadwrite.h"
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#include "avcodec.h"
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#include "codec_internal.h"
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#include "encode.h"
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#include "internal.h"
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static av_cold int v410_encode_init(AVCodecContext *avctx)
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{
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if (avctx->width & 1) {
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av_log(avctx, AV_LOG_ERROR, "v410 requires width to be even.\n");
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return AVERROR_INVALIDDATA;
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}
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avctx->bits_per_coded_sample = 32;
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avctx->bit_rate = ff_guess_coded_bitrate(avctx);
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return 0;
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}
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static int v410_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
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const AVFrame *pic, int *got_packet)
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{
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uint8_t *dst;
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const uint16_t *y, *u, *v;
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uint32_t val;
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int i, j, ret;
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ret = ff_get_encode_buffer(avctx, pkt, avctx->width * avctx->height * 4, 0);
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if (ret < 0)
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return ret;
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dst = pkt->data;
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y = (uint16_t *)pic->data[0];
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u = (uint16_t *)pic->data[1];
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v = (uint16_t *)pic->data[2];
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for (i = 0; i < avctx->height; i++) {
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for (j = 0; j < avctx->width; j++) {
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val = u[j] << 2;
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val |= y[j] << 12;
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val |= (uint32_t) v[j] << 22;
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AV_WL32(dst, val);
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dst += 4;
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}
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y += pic->linesize[0] >> 1;
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u += pic->linesize[1] >> 1;
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v += pic->linesize[2] >> 1;
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}
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*got_packet = 1;
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return 0;
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}
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const FFCodec ff_v410_encoder = {
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.p.name = "v410",
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CODEC_LONG_NAME("Uncompressed 4:4:4 10-bit"),
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.p.type = AVMEDIA_TYPE_VIDEO,
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.p.id = AV_CODEC_ID_V410,
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.p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
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.init = v410_encode_init,
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FF_CODEC_ENCODE_CB(v410_encode_frame),
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.p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV444P10, AV_PIX_FMT_NONE },
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};
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