1 /*
2 * FLV Encoding specific code.
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
27
29 {
31
33
35 /* 0: H.263 escape codes 1: 11-bit escape codes */
38 (((
int64_t)
s->picture_number * 30 *
s->avctx->time_base.num) /
// FIXME use timestamp
39 s->avctx->time_base.den) & 0xff);
/* TemporalReference */
40 if (
s->width == 352 &&
s->height == 288)
42 else if (
s->width == 176 &&
s->height == 144)
44 else if (
s->width == 128 &&
s->height == 96)
46 else if (
s->width == 320 &&
s->height == 240)
48 else if (
s->width == 160 &&
s->height == 120)
50 else if (
s->width <= 255 &&
s->height <= 255)
51 format = 0;
/* use 1 byte width & height */
52 else
53 format = 1;
/* use 2 bytes width & height */
61 }
63 put_bits(&
s->pb, 1, 1);
/* DeblockingFlag: on */
64 put_bits(&
s->pb, 5,
s->qscale);
/* Quantizer */
65 put_bits(&
s->pb, 1, 0);
/* ExtraInformation */
66
70 } else {
73 }
74 }
75
78 {
79 if (
level < 64) {
// 7-bit level
83
85 } else {
86 /* 11-bit level */
90
92 }
93 }
94
110 };