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v408enc.c
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1 /*
2  * v408 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 "libavutil/intreadwrite.h"
24 #include "avcodec.h"
25 #include "internal.h"
26 
28 {
29 
30  return 0;
31 }
32 
34  const AVFrame *pic, int *got_packet)
35 {
36  uint8_t *dst;
37  uint8_t *y, *u, *v, *a;
38  int i, j, ret;
39 
40  if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 4, 0)) < 0)
41  return ret;
42  dst = pkt->data;
43 
44  y = pic->data[0];
45  u = pic->data[1];
46  v = pic->data[2];
47  a = pic->data[3];
48 
49  for (i = 0; i < avctx->height; i++) {
50  for (j = 0; j < avctx->width; j++) {
51  if (avctx->codec_id==AV_CODEC_ID_AYUV) {
52  *dst++ = v[j];
53  *dst++ = u[j];
54  *dst++ = y[j];
55  *dst++ = a[j];
56  } else {
57  *dst++ = u[j];
58  *dst++ = y[j];
59  *dst++ = v[j];
60  *dst++ = a[j];
61  }
62  }
63  y += pic->linesize[0];
64  u += pic->linesize[1];
65  v += pic->linesize[2];
66  a += pic->linesize[3];
67  }
68 
69  pkt->flags |= AV_PKT_FLAG_KEY;
70  *got_packet = 1;
71  return 0;
72 }
73 
75 {
76  return 0;
77 }
78 
79 #if CONFIG_AYUV_ENCODER
80 AVCodec ff_ayuv_encoder = {
81  .name = "ayuv",
82  .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),
83  .type = AVMEDIA_TYPE_VIDEO,
84  .id = AV_CODEC_ID_AYUV,
85  .init = v408_encode_init,
86  .encode2 = v408_encode_frame,
87  .close = v408_encode_close,
88  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },
89  .capabilities = AV_CODEC_CAP_INTRA_ONLY,
90 };
91 #endif
92 #if CONFIG_V408_ENCODER
93 AVCodec ff_v408_encoder = {
94  .name = "v408",
95  .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),
96  .type = AVMEDIA_TYPE_VIDEO,
97  .id = AV_CODEC_ID_V408,
98  .init = v408_encode_init,
99  .encode2 = v408_encode_frame,
100  .close = v408_encode_close,
101  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },
102  .capabilities = AV_CODEC_CAP_INTRA_ONLY,
103 };
104 #endif
This structure describes decoded (raw) audio or video data.
Definition: frame.h:180
static av_cold int v408_encode_init(AVCodecContext *avctx)
Definition: v408enc.c:27
static AVPacket pkt
AVCodec.
Definition: avcodec.h:3535
#define AV_CODEC_CAP_INTRA_ONLY
Codec is intra only.
Definition: avcodec.h:1036
uint8_t
#define av_cold
Definition: attributes.h:82
uint8_t * data
Definition: avcodec.h:1577
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1609
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
const char * name
Name of the codec implementation.
Definition: avcodec.h:3542
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1583
int width
picture width / height.
Definition: avcodec.h:1829
Libavcodec external API header.
enum AVCodecID codec_id
Definition: avcodec.h:1659
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:211
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:188
main external API structure.
Definition: avcodec.h:1642
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
Definition: utils.c:1683
#define u(width,...)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:194
common internal api header.
static int v408_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic, int *got_packet)
Definition: v408enc.c:33
static av_cold int v408_encode_close(AVCodecContext *avctx)
Definition: v408enc.c:74
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
This structure stores compressed data.
Definition: avcodec.h:1554