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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 {
29  avctx->coded_frame = av_frame_alloc();
30 
31  if (!avctx->coded_frame)
32  return AVERROR(ENOMEM);
33 
34  return 0;
35 }
36 
38  const AVFrame *pic, int *got_packet)
39 {
40  int i, j, ret;
41  int aligned_width = FFALIGN(avctx->width,
42  avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
43  int pad = (aligned_width - avctx->width) * 4;
44  uint8_t *src_line;
45  uint8_t *dst;
46 
47  if ((ret = ff_alloc_packet2(avctx, pkt, 4 * aligned_width * avctx->height)) < 0)
48  return ret;
49 
50  avctx->coded_frame->key_frame = 1;
52  src_line = pic->data[0];
53  dst = pkt->data;
54 
55  for (i = 0; i < avctx->height; i++) {
56  uint16_t *src = (uint16_t *)src_line;
57  for (j = 0; j < avctx->width; j++) {
58  uint32_t pixel;
59  uint16_t r = *src++ >> 6;
60  uint16_t g = *src++ >> 6;
61  uint16_t b = *src++ >> 6;
62  if (avctx->codec_id == AV_CODEC_ID_R210)
63  pixel = (r << 20) | (g << 10) | b;
64  else
65  pixel = (r << 22) | (g << 12) | (b << 2);
66  if (avctx->codec_id == AV_CODEC_ID_AVRP)
67  bytestream_put_le32(&dst, pixel);
68  else
69  bytestream_put_be32(&dst, pixel);
70  }
71  memset(dst, 0, pad);
72  dst += pad;
73  src_line += pic->linesize[0];
74  }
75 
76  pkt->flags |= AV_PKT_FLAG_KEY;
77  *got_packet = 1;
78  return 0;
79 }
80 
82 {
83  av_frame_free(&avctx->coded_frame);
84 
85  return 0;
86 }
87 
88 #if CONFIG_R210_ENCODER
89 AVCodec ff_r210_encoder = {
90  .name = "r210",
91  .long_name = NULL_IF_CONFIG_SMALL("Uncompressed RGB 10-bit"),
92  .type = AVMEDIA_TYPE_VIDEO,
93  .id = AV_CODEC_ID_R210,
94  .init = encode_init,
95  .encode2 = encode_frame,
96  .close = encode_close,
97  .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
98 };
99 #endif
100 #if CONFIG_R10K_ENCODER
101 AVCodec ff_r10k_encoder = {
102  .name = "r10k",
103  .long_name = NULL_IF_CONFIG_SMALL("AJA Kona 10-bit RGB Codec"),
104  .type = AVMEDIA_TYPE_VIDEO,
105  .id = AV_CODEC_ID_R10K,
106  .init = encode_init,
107  .encode2 = encode_frame,
108  .close = encode_close,
109  .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
110 };
111 #endif
112 #if CONFIG_AVRP_ENCODER
113 AVCodec ff_avrp_encoder = {
114  .name = "avrp",
115  .long_name = NULL_IF_CONFIG_SMALL("Avid 1:1 10-bit RGB Packer"),
116  .type = AVMEDIA_TYPE_VIDEO,
117  .id = AV_CODEC_ID_AVRP,
118  .init = encode_init,
119  .encode2 = encode_frame,
120  .close = encode_close,
121  .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_RGB48, AV_PIX_FMT_NONE },
122 };
123 #endif
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size)
Check AVPacket size and/or allocate data.
Definition: utils.c:1736
This structure describes decoded (raw) audio or video data.
Definition: frame.h:171
const char * g
Definition: vf_curves.c:108
AVFrame * coded_frame
the picture in the bitstream
Definition: avcodec.h:2745
const char * b
Definition: vf_curves.c:109
static av_cold int encode_init(AVCodecContext *avctx)
Definition: r210enc.c:27
static AVPacket pkt
AVCodec.
Definition: avcodec.h:3181
#define FFALIGN(x, a)
Definition: common.h:71
uint8_t
#define av_cold
Definition: attributes.h:74
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:135
uint8_t * data
Definition: avcodec.h:1162
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
Definition: avcodec.h:1208
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:148
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:175
const char * r
Definition: vf_curves.c:107
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:350
const char * name
Name of the codec implementation.
Definition: avcodec.h:3188
Libavcodec external API header.
int flags
A combination of AV_PKT_FLAG values.
Definition: avcodec.h:1168
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:242
ret
Definition: avfilter.c:974
int width
picture width / height.
Definition: avcodec.h:1414
AVS_Value src
Definition: avisynth_c.h:482
enum AVCodecID codec_id
Definition: avcodec.h:1258
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:199
main external API structure.
Definition: avcodec.h:1241
uint8_t pixel
Definition: tiny_ssim.c:42
static av_cold int encode_close(AVCodecContext *avctx)
Definition: r210enc.c:81
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:182
common internal api header.
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic, int *got_packet)
Definition: r210enc.c:37
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:237
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61
This structure stores compressed data.
Definition: avcodec.h:1139