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/*****************************************************************
* gmerlin-avdecoder - a general purpose multimedia decoding library
*
* Copyright (c) 2001 - 2012 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
#include <avdec_private.h>
#include <stdlib.h>
#include <string.h>
void bgav_bytebuffer_append(bgav_bytebuffer_t * b, bgav_packet_t * p, int padding)
{
if(b->size + p->data_size + padding > b->alloc)
{
b->alloc = b->size + p->data_size + padding + 1024;
b->buffer = realloc(b->buffer, b->alloc);
}
memcpy(b->buffer + b->size, p->data, p->data_size);
b->size += p->data_size;
if(padding)
memset(b->buffer + b->size, 0, padding);
}
void bgav_bytebuffer_append_data(bgav_bytebuffer_t * b, uint8_t * data, int len, int padding)
{
if(b->size + len + padding > b->alloc)
{
b->alloc = b->size + len + padding + 1024;
b->buffer = realloc(b->buffer, b->alloc);
}
memcpy(b->buffer + b->size, data, len);
b->size += len;
if(padding)
memset(b->buffer + b->size, 0, padding);
}
int bgav_bytebuffer_append_read(bgav_bytebuffer_t * b, bgav_input_context_t * input,
int len, int padding)
{
int ret;
if(b->size + len + padding > b->alloc)
{
b->alloc = b->size + len + padding + 1024;
b->buffer = realloc(b->buffer, b->alloc);
}
ret = bgav_input_read_data(input, b->buffer + b->size, len);
b->size += ret;
if(padding)
memset(b->buffer + b->size, 0, padding);
return ret;
}
void bgav_bytebuffer_remove(bgav_bytebuffer_t * b, int bytes)
{
if(bytes > b->size)
bytes = b->size;
if(bytes < b->size)
memmove(b->buffer, b->buffer + bytes, b->size - bytes);
b->size -= bytes;
}
void bgav_bytebuffer_free(bgav_bytebuffer_t * b)
{
if(b->buffer)
free(b->buffer);
}
void bgav_bytebuffer_flush(bgav_bytebuffer_t * b)
{
b->size = 0;
}
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