| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * AVID Meridien encoder | ||
| 3 | * | ||
| 4 | * Copyright (c) 2012 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 | #include "libavutil/intreadwrite.h" | ||
| 27 | |||
| 28 | 3 | static av_cold int avui_encode_init(AVCodecContext *avctx) | |
| 29 | { | ||
| 30 |
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3 | if (avctx->width != 720 || avctx->height != 486 && avctx->height != 576) { |
| 31 | ✗ | av_log(avctx, AV_LOG_ERROR, "Only 720x486 and 720x576 are supported.\n"); | |
| 32 | ✗ | return AVERROR(EINVAL); | |
| 33 | } | ||
| 34 |
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3 | if (!(avctx->extradata = av_mallocz(144 + AV_INPUT_BUFFER_PADDING_SIZE))) |
| 35 | ✗ | return AVERROR(ENOMEM); | |
| 36 | 3 | avctx->extradata_size = 144; | |
| 37 | 3 | memcpy(avctx->extradata, "\0\0\0\x18""APRGAPRG0001", 16); | |
| 38 |
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3 | if (avctx->field_order > AV_FIELD_PROGRESSIVE) { |
| 39 | ✗ | avctx->extradata[19] = 2; | |
| 40 | } else { | ||
| 41 | 3 | avctx->extradata[19] = 1; | |
| 42 | } | ||
| 43 | 3 | memcpy(avctx->extradata + 24, "\0\0\0\x78""ARESARES0001""\0\0\0\x98", 20); | |
| 44 | 3 | AV_WB32(avctx->extradata + 44, avctx->width); | |
| 45 | 3 | AV_WB32(avctx->extradata + 48, avctx->height); | |
| 46 | 3 | memcpy(avctx->extradata + 52, "\0\0\0\x1\0\0\0\x20\0\0\0\x2", 12); | |
| 47 | |||
| 48 | |||
| 49 | 3 | return 0; | |
| 50 | } | ||
| 51 | |||
| 52 | 150 | static int avui_encode_frame(AVCodecContext *avctx, AVPacket *pkt, | |
| 53 | const AVFrame *pic, int *got_packet) | ||
| 54 | { | ||
| 55 | uint8_t *dst; | ||
| 56 | int i, j, skip, ret, size, interlaced; | ||
| 57 | |||
| 58 | 150 | interlaced = avctx->field_order > AV_FIELD_PROGRESSIVE; | |
| 59 | |||
| 60 |
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150 | if (avctx->height == 486) { |
| 61 | ✗ | skip = 10; | |
| 62 | } else { | ||
| 63 | 150 | skip = 16; | |
| 64 | } | ||
| 65 | 150 | size = 2 * avctx->width * (avctx->height + skip) + 8 * interlaced; | |
| 66 |
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150 | if ((ret = ff_get_encode_buffer(avctx, pkt, size, 0)) < 0) |
| 67 | ✗ | return ret; | |
| 68 | 150 | dst = pkt->data; | |
| 69 |
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150 | if (!interlaced) { |
| 70 | 150 | memset(dst, 0, avctx->width * skip); | |
| 71 | 150 | dst += avctx->width * skip; | |
| 72 | } | ||
| 73 | |||
| 74 |
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300 | for (i = 0; i <= interlaced; i++) { |
| 75 | const uint8_t *src; | ||
| 76 |
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150 | if (interlaced && avctx->height == 486) { |
| 77 | ✗ | src = pic->data[0] + (1 - i) * pic->linesize[0]; | |
| 78 | } else { | ||
| 79 | 150 | src = pic->data[0] + i * pic->linesize[0]; | |
| 80 | } | ||
| 81 | 150 | memset(dst, 0, avctx->width * skip + 4 * i); | |
| 82 | 150 | dst += avctx->width * skip + 4 * i; | |
| 83 |
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86550 | for (j = 0; j < avctx->height; j += interlaced + 1) { |
| 84 | 86400 | memcpy(dst, src, avctx->width * 2); | |
| 85 | 86400 | src += (interlaced + 1) * pic->linesize[0]; | |
| 86 | 86400 | dst += avctx->width * 2; | |
| 87 | } | ||
| 88 | } | ||
| 89 | |||
| 90 | 150 | *got_packet = 1; | |
| 91 | 150 | return 0; | |
| 92 | } | ||
| 93 | |||
| 94 | const FFCodec ff_avui_encoder = { | ||
| 95 | .p.name = "avui", | ||
| 96 | CODEC_LONG_NAME("Avid Meridien Uncompressed"), | ||
| 97 | .p.type = AVMEDIA_TYPE_VIDEO, | ||
| 98 | .p.id = AV_CODEC_ID_AVUI, | ||
| 99 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_EXPERIMENTAL | | ||
| 100 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE, | ||
| 101 | .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_UYVY422, AV_PIX_FMT_NONE }, | ||
| 102 | .init = avui_encode_init, | ||
| 103 | FF_CODEC_ENCODE_CB(avui_encode_frame), | ||
| 104 | }; | ||
| 105 |