mirror of
https://github.com/tuxbox-fork-migrations/recycled-ni-libstb-hal.git
synced 2025-08-28 07:50:58 +02:00
8f6c348cd9
Origin commit data
------------------
Branch: master
Commit: e1b78787fd
Author: max_10 <max_10@gmx.de>
Date: 2019-06-15 (Sat, 15 Jun 2019)
Origin message was:
------------------
- rename libeplayer3-arm -> libplayer3
------------------
No further description and justification available within origin commit message!
------------------
This commit was generated by Migit
152 lines
3.3 KiB
C
152 lines
3.3 KiB
C
/*
|
|
* Bitstream writer
|
|
*
|
|
* Copyright (c) 2006 vixy project
|
|
*
|
|
* This file contains the code that based on FFmpeg (http://ffmpeg.mplayerhq.hu/)
|
|
* See original copyright notice in /FFMPEG_CREDITS and /FFMPEG_IMPORTS
|
|
*
|
|
* This file is part of VIXY FLV Converter.
|
|
*
|
|
* 'VIXY FLV Converter' is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* 'VIXY FLV Converter' is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef BITWRITER_H
|
|
#define BITWRITER_H
|
|
|
|
#include "type.h"
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
typedef struct _BW
|
|
{
|
|
uint8 *buf;
|
|
uint32 size;
|
|
uint32 pos;
|
|
uint32 bitoffset;
|
|
uint32 tmp;
|
|
|
|
} BW;
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
static void __inline clear_bw(BW *p)
|
|
{
|
|
p->pos = 0;
|
|
p->bitoffset = 0;
|
|
p->tmp = 0;
|
|
}
|
|
|
|
static void __inline init_bw(BW *p, uint8 *buf, uint32 size)
|
|
{
|
|
p->buf = buf;
|
|
p->size = size;
|
|
clear_bw(p);
|
|
}
|
|
|
|
static void __inline forword_bits(BW *p, uint32 bits)
|
|
{
|
|
p->bitoffset += bits;
|
|
|
|
if (p->bitoffset >= 32)
|
|
{
|
|
p->buf[p->pos++] = (p->tmp >> 24) & 0xff;
|
|
p->buf[p->pos++] = (p->tmp >> 16) & 0xff;
|
|
p->buf[p->pos++] = (p->tmp >> 8) & 0xff;
|
|
p->buf[p->pos++] = (p->tmp >> 0) & 0xff;
|
|
|
|
p->tmp = 0;
|
|
p->bitoffset -= 32;
|
|
}
|
|
}
|
|
|
|
static void __inline put_bits(BW *p, uint32 bits, uint32 value)
|
|
{
|
|
uint32 shift = 32 - p->bitoffset - bits;
|
|
|
|
if (shift <= 32)
|
|
{
|
|
p->tmp |= value << shift;
|
|
forword_bits(p, bits);
|
|
}
|
|
else
|
|
{
|
|
shift = bits - (32 - p->bitoffset);
|
|
p->tmp |= value >> shift;
|
|
forword_bits(p, bits - shift);
|
|
|
|
p->tmp |= value << (32 - shift);
|
|
forword_bits(p, shift);
|
|
}
|
|
}
|
|
|
|
static void __inline pad_to_boundary(BW *p)
|
|
{
|
|
uint32 bits = 8 - (p->bitoffset % 8);
|
|
if (bits < 8)
|
|
{
|
|
put_bits(p, bits, 0);
|
|
}
|
|
}
|
|
|
|
static void __inline flash_bw(BW *p)
|
|
{
|
|
pad_to_boundary(p);
|
|
|
|
switch (p->bitoffset)
|
|
{
|
|
case 0: // nothing to do
|
|
break;
|
|
case 8:
|
|
p->buf[p->pos++] = (p->tmp >> 24) & 0xff;
|
|
break;
|
|
case 16:
|
|
p->buf[p->pos++] = (p->tmp >> 24) & 0xff;
|
|
p->buf[p->pos++] = (p->tmp >> 16) & 0xff;
|
|
break;
|
|
case 24:
|
|
p->buf[p->pos++] = (p->tmp >> 24) & 0xff;
|
|
p->buf[p->pos++] = (p->tmp >> 16) & 0xff;
|
|
p->buf[p->pos++] = (p->tmp >> 8) & 0xff;
|
|
break;
|
|
default:
|
|
// fprintf(stderr, "flash_bw error!(%d)\n", p->bitoffset);
|
|
break;
|
|
}
|
|
|
|
p->tmp = 0;
|
|
p->bitoffset = 0;
|
|
}
|
|
|
|
static uint32 __inline get_bw_pos(BW *p)
|
|
{
|
|
return p->pos * 8 + p->bitoffset;
|
|
}
|
|
|
|
static void __inline put_vlcdec(BW *bw, VLCDEC *vlcdec)
|
|
{
|
|
put_bits(bw, vlcdec->bits, vlcdec->value);
|
|
}
|
|
|
|
// M4V ADDED
|
|
static void __inline m4v_stuffing(BW *p)
|
|
{
|
|
int length;
|
|
|
|
put_bits(p, 1, 0);
|
|
length = (- p->bitoffset) & 7;
|
|
if (length) put_bits(p, length, (1 << length) - 1);
|
|
}
|
|
|
|
#endif // BITWRITER_H
|