| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * y41p encoder | ||
| 3 | * | ||
| 4 | * Copyright (c) 2012 Paul B Mahol | ||
| 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 "avcodec.h" | ||
| 24 | #include "codec_internal.h" | ||
| 25 | #include "encode.h" | ||
| 26 | #include "internal.h" | ||
| 27 | |||
| 28 | 3 | static av_cold int y41p_encode_init(AVCodecContext *avctx) | |
| 29 | { | ||
| 30 |
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3 | if (avctx->width & 7) { |
| 31 | ✗ | av_log(avctx, AV_LOG_ERROR, "y41p requires width to be divisible by 8.\n"); | |
| 32 | ✗ | return AVERROR_INVALIDDATA; | |
| 33 | } | ||
| 34 | |||
| 35 | 3 | avctx->bits_per_coded_sample = 12; | |
| 36 | 3 | avctx->bit_rate = ff_guess_coded_bitrate(avctx); | |
| 37 | |||
| 38 | 3 | return 0; | |
| 39 | } | ||
| 40 | |||
| 41 | 150 | static int y41p_encode_frame(AVCodecContext *avctx, AVPacket *pkt, | |
| 42 | const AVFrame *pic, int *got_packet) | ||
| 43 | { | ||
| 44 | uint8_t *dst; | ||
| 45 | const uint8_t *y, *u, *v; | ||
| 46 | int i, j, ret; | ||
| 47 | |||
| 48 | 150 | ret = ff_get_encode_buffer(avctx, pkt, avctx->width * avctx->height * 1.5, 0); | |
| 49 |
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150 | if (ret < 0) |
| 50 | ✗ | return ret; | |
| 51 | |||
| 52 | 150 | dst = pkt->data; | |
| 53 | |||
| 54 |
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43350 | for (i = avctx->height - 1; i >= 0; i--) { |
| 55 | 43200 | y = &pic->data[0][i * pic->linesize[0]]; | |
| 56 | 43200 | u = &pic->data[1][i * pic->linesize[1]]; | |
| 57 | 43200 | v = &pic->data[2][i * pic->linesize[2]]; | |
| 58 |
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1944000 | for (j = 0; j < avctx->width; j += 8) { |
| 59 | 1900800 | *(dst++) = *(u++); | |
| 60 | 1900800 | *(dst++) = *(y++); | |
| 61 | 1900800 | *(dst++) = *(v++); | |
| 62 | 1900800 | *(dst++) = *(y++); | |
| 63 | |||
| 64 | 1900800 | *(dst++) = *(u++); | |
| 65 | 1900800 | *(dst++) = *(y++); | |
| 66 | 1900800 | *(dst++) = *(v++); | |
| 67 | 1900800 | *(dst++) = *(y++); | |
| 68 | |||
| 69 | 1900800 | *(dst++) = *(y++); | |
| 70 | 1900800 | *(dst++) = *(y++); | |
| 71 | 1900800 | *(dst++) = *(y++); | |
| 72 | 1900800 | *(dst++) = *(y++); | |
| 73 | } | ||
| 74 | } | ||
| 75 | |||
| 76 | 150 | *got_packet = 1; | |
| 77 | 150 | return 0; | |
| 78 | } | ||
| 79 | |||
| 80 | const FFCodec ff_y41p_encoder = { | ||
| 81 | .p.name = "y41p", | ||
| 82 | CODEC_LONG_NAME("Uncompressed YUV 4:1:1 12-bit"), | ||
| 83 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
| 84 | .p.id = AV_CODEC_ID_Y41P, | ||
| 85 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE, | ||
| 86 | .init = y41p_encode_init, | ||
| 87 | FF_CODEC_ENCODE_CB(y41p_encode_frame), | ||
| 88 | .p.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV411P, | ||
| 89 | AV_PIX_FMT_NONE }, | ||
| 90 | }; | ||
| 91 |