1 /*
2 * libquicktime yuv4 encoder
3 *
4 * Copyright (c) 2011 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
25
27 {
28 return 0;
29 }
30
32 const AVFrame *pic,
int *got_packet)
33 {
36 int i, j, ret;
37
39 return ret;
41
45
46 for (i = 0; i < avctx->
height + 1 >> 1; i++) {
47 for (j = 0; j < avctx->
width + 1 >> 1; j++) {
48 *dst++ = u[j] ^ 0x80;
49 *dst++ = v[j] ^ 0x80;
50 *dst++ = y[ 2 * j ];
51 *dst++ = y[ 2 * j + 1];
52 *dst++ = y[pic->
linesize[0] + 2 * j ];
53 *dst++ = y[pic->
linesize[0] + 2 * j + 1];
54 }
58 }
59
61 *got_packet = 1;
62 return 0;
63 }
64
66 {
67 return 0;
68 }
69
80 };
This structure describes decoded (raw) audio or video data.
#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 av_cold int yuv4_encode_init(AVCodecContext *avctx)
#define AV_PKT_FLAG_KEY
The packet contains a keyframe.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static int yuv4_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *pic, int *got_packet)
const char * name
Name of the codec implementation.
int flags
A combination of AV_PKT_FLAG values.
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.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
common internal api header.
static av_cold int yuv4_encode_close(AVCodecContext *avctx)
AVPixelFormat
Pixel format.
This structure stores compressed data.