1 /*
2 * y41p 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
25
27 {
28 if (avctx->
width & 7) {
31 }
32
35
36 return 0;
37 }
38
40 const AVFrame *pic,
int *got_packet)
41 {
44 int i, j, ret;
45
47 return ret;
48
50
51 for (i = avctx->
height - 1; i >= 0; i--) {
55 for (j = 0; j < avctx->
width; j += 8) {
56 *(dst++) = *(u++);
57 *(dst++) = *(y++);
58 *(dst++) = *(v++);
59 *(dst++) = *(y++);
60
61 *(dst++) = *(u++);
62 *(dst++) = *(y++);
63 *(dst++) = *(v++);
64 *(dst++) = *(y++);
65
66 *(dst++) = *(y++);
67 *(dst++) = *(y++);
68 *(dst++) = *(y++);
69 *(dst++) = *(y++);
70 }
71 }
72
74 *got_packet = 1;
75 return 0;
76 }
77
79 {
80 return 0;
81 }
82
94 };
static av_cold int y41p_encode_close(AVCodecContext *avctx)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
This structure describes decoded (raw) audio or video data.
int64_t bit_rate
the average bitrate
#define AV_CODEC_CAP_INTRA_ONLY
Codec is intra only.
int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int64_t size, int64_t min_size)
Check AVPacket size and/or allocate data.
#define u(width, name, range_min, range_max)
static int y41p_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic, int *got_packet)
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
const char * name
Name of the codec implementation.
int flags
A combination of AV_PKT_FLAG values.
int64_t ff_guess_coded_bitrate(AVCodecContext *avctx)
Get an estimated video bitrate based on frame size, frame rate and coded bits per pixel...
int width
picture width / height.
Libavcodec external API header.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
main external API structure.
static av_cold int y41p_encode_init(AVCodecContext *avctx)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
common internal api header.
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
AVPixelFormat
Pixel format.
This structure stores compressed data.