| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * libquicktime yuv4 encoder | ||
| 3 | * | ||
| 4 | * Copyright (c) 2011 Carl Eugen Hoyos | ||
| 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 | |||
| 27 | 200 | static int yuv4_encode_frame(AVCodecContext *avctx, AVPacket *pkt, | |
| 28 | const AVFrame *pic, int *got_packet) | ||
| 29 | { | ||
| 30 | uint8_t *dst; | ||
| 31 | const uint8_t *y, *u, *v; | ||
| 32 | int ret; | ||
| 33 | |||
| 34 | 200 | ret = ff_get_encode_buffer(avctx, pkt, 6 * ((avctx->width + 1) / 2) | |
| 35 | 200 | * ((avctx->height + 1) / 2), 0); | |
| 36 |
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200 | if (ret < 0) |
| 37 | ✗ | return ret; | |
| 38 | 200 | dst = pkt->data; | |
| 39 | |||
| 40 | 200 | y = pic->data[0]; | |
| 41 | 200 | u = pic->data[1]; | |
| 42 | 200 | v = pic->data[2]; | |
| 43 | |||
| 44 |
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22650 | for (int i = 0; i < avctx->height / 2; i++) { |
| 45 |
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3838500 | for (int j = 0; j < (avctx->width + 1) / 2; j++) { |
| 46 | 3816050 | *dst++ = u[j] ^ 0x80; | |
| 47 | 3816050 | *dst++ = v[j] ^ 0x80; | |
| 48 | 3816050 | *dst++ = y[ 2 * j ]; | |
| 49 | 3816050 | *dst++ = y[ 2 * j + 1]; | |
| 50 | 3816050 | *dst++ = y[pic->linesize[0] + 2 * j ]; | |
| 51 | 3816050 | *dst++ = y[pic->linesize[0] + 2 * j + 1]; | |
| 52 | } | ||
| 53 | 22450 | y += 2 * pic->linesize[0]; | |
| 54 | 22450 | u += pic->linesize[1]; | |
| 55 | 22450 | v += pic->linesize[2]; | |
| 56 | } | ||
| 57 | |||
| 58 |
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200 | if (avctx->height & 1) { |
| 59 | ✗ | for (int j = 0; j < (avctx->width + 1) / 2; j++) { | |
| 60 | ✗ | *dst++ = u[j] ^ 0x80; | |
| 61 | ✗ | *dst++ = v[j] ^ 0x80; | |
| 62 | ✗ | *dst++ = y[2 * j ]; | |
| 63 | ✗ | *dst++ = y[2 * j + 1]; | |
| 64 | ✗ | *dst++ = y[2 * j ]; | |
| 65 | ✗ | *dst++ = y[2 * j + 1]; | |
| 66 | } | ||
| 67 | } | ||
| 68 | |||
| 69 | 200 | *got_packet = 1; | |
| 70 | 200 | return 0; | |
| 71 | } | ||
| 72 | |||
| 73 | const FFCodec ff_yuv4_encoder = { | ||
| 74 | .p.name = "yuv4", | ||
| 75 | CODEC_LONG_NAME("Uncompressed packed 4:2:0"), | ||
| 76 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
| 77 | .p.id = AV_CODEC_ID_YUV4, | ||
| 78 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE, | ||
| 79 | .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }, | ||
| 80 | FF_CODEC_ENCODE_CB(yuv4_encode_frame), | ||
| 81 | }; | ||
| 82 |