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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  avctx->bits_per_coded_sample = 32;
30  avctx->bit_rate = ff_guess_coded_bitrate(avctx);
31 
32  return 0;
33 }
34 
36  const AVFrame *pic, int *got_packet)
37 {
38  uint8_t *dst;
39  uint8_t *y, *u, *v, *a;
40  int i, j, ret;
41 
42  if ((ret = ff_alloc_packet2(avctx, pkt, avctx->width * avctx->height * 4, 0)) < 0)
43  return ret;
44  dst = pkt->data;
45 
46  y = pic->data[0];
47  u = pic->data[1];
48  v = pic->data[2];
49  a = pic->data[3];
50 
51  for (i = 0; i < avctx->height; i++) {
52  for (j = 0; j < avctx->width; j++) {
53  if (avctx->codec_id==AV_CODEC_ID_AYUV) {
54  *dst++ = v[j];
55  *dst++ = u[j];
56  *dst++ = y[j];
57  *dst++ = a[j];
58  } else {
59  *dst++ = u[j];
60  *dst++ = y[j];
61  *dst++ = v[j];
62  *dst++ = a[j];
63  }
64  }
65  y += pic->linesize[0];
66  u += pic->linesize[1];
67  v += pic->linesize[2];
68  a += pic->linesize[3];
69  }
70 
71  pkt->flags |= AV_PKT_FLAG_KEY;
72  *got_packet = 1;
73  return 0;
74 }
75 
77 {
78  return 0;
79 }
80 
81 #if CONFIG_AYUV_ENCODER
82 AVCodec ff_ayuv_encoder = {
83  .name = "ayuv",
84  .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed MS 4:4:4:4"),
85  .type = AVMEDIA_TYPE_VIDEO,
86  .id = AV_CODEC_ID_AYUV,
87  .init = v408_encode_init,
88  .encode2 = v408_encode_frame,
89  .close = v408_encode_close,
90  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },
91  .capabilities = AV_CODEC_CAP_INTRA_ONLY,
92 };
93 #endif
94 #if CONFIG_V408_ENCODER
95 AVCodec ff_v408_encoder = {
96  .name = "v408",
97  .long_name = NULL_IF_CONFIG_SMALL("Uncompressed packed QT 4:4:4:4"),
98  .type = AVMEDIA_TYPE_VIDEO,
99  .id = AV_CODEC_ID_V408,
100  .init = v408_encode_init,
101  .encode2 = v408_encode_frame,
102  .close = v408_encode_close,
103  .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_NONE },
104  .capabilities = AV_CODEC_CAP_INTRA_ONLY,
105 };
106 #endif
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
static av_cold int v408_encode_init(AVCodecContext *avctx)
Definition: v408enc.c:27
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1538
static AVPacket pkt
AVCodec.
Definition: avcodec.h:3351
#define AV_CODEC_CAP_INTRA_ONLY
Codec is intra only.
Definition: avcodec.h:1042
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
Definition: encode.c:32
uint8_t
#define av_cold
Definition: attributes.h:82
#define u(width, name, range_min, range_max)
Definition: cbs_h2645.c:343
uint8_t * data
Definition: avcodec.h:1400
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
Definition: avcodec.h:2704
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1432
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
const char * name
Name of the codec implementation.
Definition: avcodec.h:3358
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1406
int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
Get an estimated video bitrate based on frame size, frame rate and coded bits per pixel...
Definition: utils.c:2406
int width
picture width / height.
Definition: avcodec.h:1660
Libavcodec external API header.
enum AVCodecID codec_id
Definition: avcodec.h:1498
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:232
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:173
main external API structure.
Definition: avcodec.h:1488
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:215
common internal api header.
static int v408_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic, int *got_packet)
Definition: v408enc.c:35
static av_cold int v408_encode_close(AVCodecContext *avctx)
Definition: v408enc.c:76
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
This structure stores compressed data.
Definition: avcodec.h:1377