FFmpeg
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 "config_components.h"
24 
25 #include "avcodec.h"
26 #include "codec_internal.h"
27 #include "encode.h"
28 #include "internal.h"
29 #include "bytestream.h"
30 
32 {
33  int aligned_width = FFALIGN(avctx->width,
34  avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
35 
36  avctx->bits_per_coded_sample = 32;
37  if (avctx->width > 0)
38  avctx->bit_rate = ff_guess_coded_bitrate(avctx) * aligned_width / avctx->width;
39 
40  return 0;
41 }
42 
44  const AVFrame *pic, int *got_packet)
45 {
46  int i, j, ret;
47  int aligned_width = FFALIGN(avctx->width,
48  avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
49  int pad = (aligned_width - avctx->width) * 4;
50  const uint8_t *srcr_line, *srcg_line, *srcb_line;
51  uint8_t *dst;
52 
53  ret = ff_get_encode_buffer(avctx, pkt, 4 * aligned_width * avctx->height, 0);
54  if (ret < 0)
55  return ret;
56 
57  srcg_line = pic->data[0];
58  srcb_line = pic->data[1];
59  srcr_line = pic->data[2];
60  dst = pkt->data;
61 
62  for (i = 0; i < avctx->height; i++) {
63  const uint16_t *srcr = (const uint16_t *)srcr_line;
64  const uint16_t *srcg = (const uint16_t *)srcg_line;
65  const uint16_t *srcb = (const uint16_t *)srcb_line;
66  for (j = 0; j < avctx->width; j++) {
67  uint32_t pixel;
68  unsigned r = *srcr++;
69  unsigned g = *srcg++;
70  unsigned b = *srcb++;
71  if (avctx->codec_id == AV_CODEC_ID_R210)
72  pixel = (r << 20) | (g << 10) | b;
73  else
74  pixel = (r << 22) | (g << 12) | (b << 2);
75  if (avctx->codec_id == AV_CODEC_ID_AVRP)
76  bytestream_put_le32(&dst, pixel);
77  else
78  bytestream_put_be32(&dst, pixel);
79  }
80  memset(dst, 0, pad);
81  dst += pad;
82  srcr_line += pic->linesize[2];
83  srcg_line += pic->linesize[0];
84  srcb_line += pic->linesize[1];
85  }
86 
87  *got_packet = 1;
88  return 0;
89 }
90 
92 
93 #if CONFIG_R210_ENCODER
94 const FFCodec ff_r210_encoder = {
95  .p.name = "r210",
96  CODEC_LONG_NAME("Uncompressed RGB 10-bit"),
97  .p.type = AVMEDIA_TYPE_VIDEO,
98  .p.id = AV_CODEC_ID_R210,
99  .p.capabilities = AV_CODEC_CAP_DR1,
100  .init = encode_init,
102  .p.pix_fmts = pix_fmt,
103 };
104 #endif
105 #if CONFIG_R10K_ENCODER
106 const FFCodec ff_r10k_encoder = {
107  .p.name = "r10k",
108  CODEC_LONG_NAME("AJA Kona 10-bit RGB Codec"),
109  .p.type = AVMEDIA_TYPE_VIDEO,
110  .p.id = AV_CODEC_ID_R10K,
111  .p.capabilities = AV_CODEC_CAP_DR1,
112  .init = encode_init,
114  .p.pix_fmts = pix_fmt,
115 };
116 #endif
117 #if CONFIG_AVRP_ENCODER
118 const FFCodec ff_avrp_encoder = {
119  .p.name = "avrp",
120  CODEC_LONG_NAME("Avid 1:1 10-bit RGB Packer"),
121  .p.type = AVMEDIA_TYPE_VIDEO,
122  .p.id = AV_CODEC_ID_AVRP,
123  .p.capabilities = AV_CODEC_CAP_DR1,
124  .init = encode_init,
126  .p.pix_fmts = pix_fmt,
127 };
128 #endif
ff_guess_coded_bitrate
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:1127
AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
r
const char * r
Definition: vf_curves.c:126
encode_init
static av_cold int encode_init(AVCodecContext *avctx)
Definition: r210enc.c:31
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:330
internal.h
AVPacket::data
uint8_t * data
Definition: packet.h:374
encode.h
b
#define b
Definition: input.c:41
FFCodec
Definition: codec_internal.h:119
AV_CODEC_ID_R10K
@ AV_CODEC_ID_R10K
Definition: codec_id.h:197
AVFrame::data
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:351
FFCodec::p
AVCodec p
The public AVCodec.
Definition: codec_internal.h:123
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:475
AV_CODEC_ID_R210
@ AV_CODEC_ID_R210
Definition: codec_id.h:185
FF_CODEC_ENCODE_CB
#define FF_CODEC_ENCODE_CB(func)
Definition: codec_internal.h:307
pkt
AVPacket * pkt
Definition: movenc.c:59
av_cold
#define av_cold
Definition: attributes.h:90
g
const char * g
Definition: vf_curves.c:127
CODEC_LONG_NAME
#define CODEC_LONG_NAME(str)
Definition: codec_internal.h:264
AVCodecContext::codec_id
enum AVCodecID codec_id
Definition: avcodec.h:408
pixel
uint8_t pixel
Definition: tiny_ssim.c:41
AVCodecContext::bit_rate
int64_t bit_rate
the average bitrate
Definition: avcodec.h:448
AV_CODEC_CAP_DR1
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() or get_encode_buffer() for allocating buffers and supports custom allocators.
Definition: codec.h:52
codec_internal.h
AVCodecContext::bits_per_coded_sample
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
Definition: avcodec.h:1444
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
ff_r210_encoder
const FFCodec ff_r210_encoder
ff_r10k_encoder
const FFCodec ff_r10k_encoder
AVCodec::name
const char * name
Name of the codec implementation.
Definition: codec.h:211
AVCodecContext::height
int height
Definition: avcodec.h:571
avcodec.h
ret
ret
Definition: filter_design.txt:187
AV_CODEC_ID_AVRP
@ AV_CODEC_ID_AVRP
Definition: codec_id.h:253
AVCodecContext
main external API structure.
Definition: avcodec.h:398
ff_get_encode_buffer
int ff_get_encode_buffer(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int flags)
Get a buffer for a packet.
Definition: encode.c:79
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
FFALIGN
#define FFALIGN(x, a)
Definition: macros.h:78
AVPacket
This structure stores compressed data.
Definition: packet.h:351
encode_frame
static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic, int *got_packet)
Definition: r210enc.c:43
pix_fmt
static enum AVPixelFormat pix_fmt[]
Definition: r210enc.c:91
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:571
bytestream.h
AVFrame::linesize
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
Definition: frame.h:375
ff_avrp_encoder
const FFCodec ff_avrp_encoder