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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * v410 encoder |
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| 3 | * |
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| 4 | * Copyright (c) 2011 Derek Buitenhuis |
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| 5 | * |
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| 6 | * This file is part of FFmpeg. |
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| 7 | * |
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| 8 | * FFmpeg is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU Lesser General Public |
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| 10 | * License as published by the Free Software Foundation; either |
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| 11 | * version 2.1 of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * FFmpeg is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 16 | * Lesser General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU Lesser General Public |
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| 19 | * License along with FFmpeg; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 21 | */ |
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| 22 | |||
| 23 | #include "libavutil/common.h" |
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| 24 | #include "libavutil/intreadwrite.h" |
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| 25 | #include "avcodec.h" |
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| 26 | #include "internal.h" |
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| 27 | |||
| 28 | static av_cold int v410_encode_init(AVCodecContext *avctx) |
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| 29 | { |
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| 30 | if (avctx->width & 1) { |
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| 31 | av_log(avctx, AV_LOG_ERROR, "v410 requires width to be even.\n"); |
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| 32 | return AVERROR_INVALIDDATA; |
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| 33 | } |
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| 34 | |||
| 35 | avctx->coded_frame = avcodec_alloc_frame(); |
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| 36 | |||
| 37 | if (!avctx->coded_frame) { |
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| 38 | av_log(avctx, AV_LOG_ERROR, "Could not allocate frame.\n"); |
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| 39 | return AVERROR(ENOMEM); |
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| 40 | } |
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| 41 | |||
| 42 | return 0; |
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| 43 | } |
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| 44 | |||
| 45 | static int v410_encode_frame(AVCodecContext *avctx, AVPacket *pkt, |
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| 46 | const AVFrame *pic, int *got_packet) |
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| 47 | { |
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| 48 | uint8_t *dst; |
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| 49 | uint16_t *y, *u, *v; |
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| 50 | uint32_t val; |
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| 51 | int i, j, ret; |
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| 52 | |||
| 53 | if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 4)) < 0) |
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| 54 | return ret; |
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| 55 | dst = pkt->data; |
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| 56 | |||
| 57 | avctx->coded_frame->key_frame = 1; |
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| 58 | avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; |
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| 59 | |||
| 60 | y = (uint16_t *)pic->data[0]; |
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| 61 | u = (uint16_t *)pic->data[1]; |
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| 62 | v = (uint16_t *)pic->data[2]; |
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| 63 | |||
| 64 | for (i = 0; i < avctx->height; i++) { |
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| 65 | for (j = 0; j < avctx->width; j++) { |
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| 66 | val = u[j] << 2; |
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| 67 | val |= y[j] << 12; |
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| 68 | val |= (uint32_t) v[j] << 22; |
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| 69 | AV_WL32(dst, val); |
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| 70 | dst += 4; |
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| 71 | } |
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| 72 | y += pic->linesize[0] >> 1; |
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| 73 | u += pic->linesize[1] >> 1; |
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| 74 | v += pic->linesize[2] >> 1; |
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| 75 | } |
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| 76 | |||
| 77 | pkt->flags |= AV_PKT_FLAG_KEY; |
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| 78 | *got_packet = 1; |
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| 79 | return 0; |
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| 80 | } |
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| 81 | |||
| 82 | static av_cold int v410_encode_close(AVCodecContext *avctx) |
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| 83 | { |
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| 84 | av_freep(&avctx->coded_frame); |
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| 85 | |||
| 86 | return 0; |
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| 87 | } |
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| 88 | |||
| 89 | AVCodec ff_v410_encoder = { |
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| 90 | .name = "v410", |
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| 91 | .long_name = NULL_IF_CONFIG_SMALL("Uncompressed 4:4:4 10-bit"), |
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| 92 | .type = AVMEDIA_TYPE_VIDEO, |
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| 93 | .id = AV_CODEC_ID_V410, |
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| 94 | .init = v410_encode_init, |
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| 95 | .encode2 = v410_encode_frame, |
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| 96 | .close = v410_encode_close, |
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| 97 | .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV444P10, AV_PIX_FMT_NONE }, |
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| 98 | }; |