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r210enc.c
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1 /*
2  * R210 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 "internal.h"
25 #include "bytestream.h"
26 
28  const AVFrame *pic, int *got_packet)
29 {
30  int i, j, ret;
31  int aligned_width = FFALIGN(avctx->width,
32  avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
33  int pad = (aligned_width - avctx->width) * 4;
34  uint8_t *src_line;
35  uint8_t *dst;
36 
37  if ((ret = ff_alloc_packet2(avctx, pkt, 4 * aligned_width * avctx->height, 0)) < 0)
38  return ret;
39 
40  src_line = pic->data[0];
41  dst = pkt->data;
42 
43  for (i = 0; i < avctx->height; i++) {
44  uint16_t *src = (uint16_t *)src_line;
45  for (j = 0; j < avctx->width; j++) {
46  uint32_t pixel;
47  uint16_t r = *src++ >> 6;
48  uint16_t g = *src++ >> 6;
49  uint16_t b = *src++ >> 6;
50  if (avctx->codec_id == AV_CODEC_ID_R210)
51  pixel = (r << 20) | (g << 10) | b;
52  else
53  pixel = (r << 22) | (g << 12) | (b << 2);
54  if (avctx->codec_id == AV_CODEC_ID_AVRP)
55  bytestream_put_le32(&dst, pixel);
56  else
57  bytestream_put_be32(&dst, pixel);
58  }
59  memset(dst, 0, pad);
60  dst += pad;
61  src_line += pic->linesize[0];
62  }
63 
64  pkt->flags |= AV_PKT_FLAG_KEY;
65  *got_packet = 1;
66  return 0;
67 }
68 
69 
70 #if CONFIG_R210_ENCODER
71 AVCodec ff_r210_encoder = {
72  .name = "r210",
73  .long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
74  .type = AVMEDIA_TYPE_VIDEO,
75  .id = AV_CODEC_ID_R210,
76  .encode2 = encode_frame,
77  .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
78  .capabilities = AV_CODEC_CAP_INTRA_ONLY,
79 };
80 #endif
81 #if CONFIG_R10K_ENCODER
82 AVCodec ff_r10k_encoder = {
83  .name = "r10k",
84  .long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
85  .type = AVMEDIA_TYPE_VIDEO,
86  .id = AV_CODEC_ID_R10K,
87  .encode2 = encode_frame,
88  .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
89  .capabilities = AV_CODEC_CAP_INTRA_ONLY,
90 };
91 #endif
92 #if CONFIG_AVRP_ENCODER
93 AVCodec ff_avrp_encoder = {
94  .name = "avrp",
95  .long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
96  .type = AVMEDIA_TYPE_VIDEO,
97  .id = AV_CODEC_ID_AVRP,
98  .encode2 = encode_frame,
99  .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
100  .capabilities = AV_CODEC_CAP_INTRA_ONLY,
101 };
102 #endif
This structure describes decoded (raw) audio or video data.
Definition: frame.h:181
const char * g
Definition: vf_curves.c:108
const char * b
Definition: vf_curves.c:109
static AVPacket pkt
AVCodec.
Definition: avcodec.h:3392
#define AV_CODEC_CAP_INTRA_ONLY
Codec is intra only.
Definition: avcodec.h:939
uint8_t
uint8_t * data
Definition: avcodec.h:1467
#define FFALIGN(x, a)
Definition: macros.h:48
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1499
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
const char * r
Definition: vf_curves.c:107
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:316
const char * name
Name of the codec implementation.
Definition: avcodec.h:3399
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1473
int width
picture width / height.
Definition: avcodec.h:1711
#define src
Definition: vp9dsp.c:530
Libavcodec external API header.
enum AVCodecID codec_id
Definition: avcodec.h:1549
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:209
main external API structure.
Definition: avcodec.h:1532
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:1621
uint8_t pixel
Definition: tiny_ssim.c:42
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:192
common internal api header.
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic, int *got_packet)
Definition: r210enc.c:27
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61
This structure stores compressed data.
Definition: avcodec.h:1444