kolibrios/programs/media/Fplay/utils.c
Sergey Semyonov (Serge) 84726c7e7b sna scaler
git-svn-id: svn://kolibrios.org@2349 a494cfbc-eb01-0410-851d-a64ba20cac60
2012-02-13 22:34:36 +00:00

99 lines
1.8 KiB
C

#include <stdint.h>
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
#include <stdio.h>
#include <fcntl.h>
#include "fplay.h"
extern uint32_t hw2d ;
void mutex_lock(volatile uint32_t *val)
{
uint32_t tmp;
__asm__ __volatile__ (
"0:\n\t"
"mov %0, %1\n\t"
"testl %1, %1\n\t"
"jz 1f\n\t"
"movl $68, %%eax\n\t"
"movl $1, %%ebx\n\t"
"int $0x40\n\t"
"jmp 0b\n\t"
"1:\n\t"
"incl %1\n\t"
"xchgl %0, %1\n\t"
"testl %1, %1\n\t"
"jnz 0b\n"
: "+m" (*val), "=&r"(tmp)
::"eax","ebx" );
}
int64_t _lseeki64(int fd, int64_t offset, int origin )
{
int off = offset;
return lseek(fd, off, origin);
}
int put_packet(queue_t *q, AVPacket *pkt)
{
AVPacketList *q_pkt;
/* duplicate the packet */
if (av_dup_packet(pkt) < 0)
return -1;
q_pkt = av_malloc(sizeof(AVPacketList));
if (!q_pkt)
return -1;
q_pkt->pkt = *pkt;
q_pkt->next = NULL;
mutex_lock(&q->lock);
if (!q->last_pkt)
q->first_pkt = q_pkt;
else
q->last_pkt->next = q_pkt;
q->last_pkt = q_pkt;
q->size += q_pkt->pkt.size + sizeof(*q_pkt);
q->count++;
mutex_unlock(&q->lock);
return 0;
}
int get_packet(queue_t *q, AVPacket *pkt)
{
AVPacketList *q_pkt;
int ret = 0;
mutex_lock(&q->lock);
q_pkt = q->first_pkt;
if (q_pkt)
{
q->first_pkt = q_pkt->next;
if (!q->first_pkt)
q->last_pkt = NULL;
q->count--;
q->size -= q_pkt->pkt.size + sizeof(*q_pkt);
*pkt = q_pkt->pkt;
av_free(q_pkt);
ret = 1;
};
mutex_unlock(&q->lock);
return ret;
}