blob: 5e2450279fb523b64ce0f4df0a784b687847d61d
| 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 "internal.h" |
| 27 | |
| 28 | static av_cold int v410_encode_init(AVCodecContext *avctx) |
| 29 | { |
| 30 | if (avctx->width & 1) { |
| 31 | av_log(avctx, AV_LOG_ERROR, "v410 requires width to be even.\n"); |
| 32 | return AVERROR_INVALIDDATA; |
| 33 | } |
| 34 | |
| 35 | avctx->bits_per_coded_sample = 32; |
| 36 | avctx->bit_rate = ff_guess_coded_bitrate(avctx); |
| 37 | |
| 38 | return 0; |
| 39 | } |
| 40 | |
| 41 | static int v410_encode_frame(AVCodecContext *avctx, AVPacket *pkt, |
| 42 | const AVFrame *pic, int *got_packet) |
| 43 | { |
| 44 | uint8_t *dst; |
| 45 | uint16_t *y, *u, *v; |
| 46 | uint32_t val; |
| 47 | int i, j, ret; |
| 48 | |
| 49 | if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 4, |
| 50 | avctx->width * avctx->height * 4)) < 0) |
| 51 | return ret; |
| 52 | dst = pkt->data; |
| 53 | |
| 54 | #if FF_API_CODED_FRAME |
| 55 | FF_DISABLE_DEPRECATION_WARNINGS |
| 56 | avctx->coded_frame->key_frame = 1; |
| 57 | avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; |
| 58 | FF_ENABLE_DEPRECATION_WARNINGS |
| 59 | #endif |
| 60 | |
| 61 | y = (uint16_t *)pic->data[0]; |
| 62 | u = (uint16_t *)pic->data[1]; |
| 63 | v = (uint16_t *)pic->data[2]; |
| 64 | |
| 65 | for (i = 0; i < avctx->height; i++) { |
| 66 | for (j = 0; j < avctx->width; j++) { |
| 67 | val = u[j] << 2; |
| 68 | val |= y[j] << 12; |
| 69 | val |= (uint32_t) v[j] << 22; |
| 70 | AV_WL32(dst, val); |
| 71 | dst += 4; |
| 72 | } |
| 73 | y += pic->linesize[0] >> 1; |
| 74 | u += pic->linesize[1] >> 1; |
| 75 | v += pic->linesize[2] >> 1; |
| 76 | } |
| 77 | |
| 78 | pkt->flags |= AV_PKT_FLAG_KEY; |
| 79 | *got_packet = 1; |
| 80 | return 0; |
| 81 | } |
| 82 | |
| 83 | AVCodec ff_v410_encoder = { |
| 84 | .name = "v410", |
| 85 | .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:4:4 10-bit"), |
| 86 | .type = AVMEDIA_TYPE_VIDEO, |
| 87 | .id = AV_CODEC_ID_V410, |
| 88 | .init = v410_encode_init, |
| 89 | .encode2 = v410_encode_frame, |
| 90 | .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV444P10, AV_PIX_FMT_NONE }, |
| 91 | }; |
| 92 |