mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-27 16:59:41 +03:00
100 lines
1.8 KiB
C
100 lines
1.8 KiB
C
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#include <stdint.h>
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#include <libavcodec/avcodec.h>
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#include <libavformat/avformat.h>
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#include <libswscale/swscale.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include "../winlib/winlib.h"
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#include "fplay.h"
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extern uint32_t hw2d ;
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void mutex_lock(volatile uint32_t *val)
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{
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uint32_t tmp;
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__asm__ __volatile__ (
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"0:\n\t"
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"mov %0, %1\n\t"
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"testl %1, %1\n\t"
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"jz 1f\n\t"
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"movl $68, %%eax\n\t"
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"movl $1, %%ebx\n\t"
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"int $0x40\n\t"
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"jmp 0b\n\t"
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"1:\n\t"
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"incl %1\n\t"
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"xchgl %0, %1\n\t"
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"testl %1, %1\n\t"
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"jnz 0b\n"
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: "+m" (*val), "=&r"(tmp)
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::"eax","ebx" );
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}
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int64_t _lseeki64(int fd, int64_t offset, int origin )
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{
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int off = offset;
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return lseek(fd, off, origin);
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}
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int put_packet(queue_t *q, AVPacket *pkt)
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{
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AVPacketList *q_pkt;
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/* duplicate the packet */
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if (av_dup_packet(pkt) < 0)
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return -1;
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q_pkt = av_malloc(sizeof(AVPacketList));
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if (!q_pkt)
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return -1;
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q_pkt->pkt = *pkt;
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q_pkt->next = NULL;
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mutex_lock(&q->lock);
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if (!q->last_pkt)
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q->first_pkt = q_pkt;
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else
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q->last_pkt->next = q_pkt;
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q->last_pkt = q_pkt;
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q->size += q_pkt->pkt.size + sizeof(*q_pkt);
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q->count++;
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mutex_unlock(&q->lock);
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return 0;
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}
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int get_packet(queue_t *q, AVPacket *pkt)
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{
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AVPacketList *q_pkt;
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int ret = 0;
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mutex_lock(&q->lock);
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q_pkt = q->first_pkt;
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if (q_pkt)
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{
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q->first_pkt = q_pkt->next;
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if (!q->first_pkt)
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q->last_pkt = NULL;
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q->count--;
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q->size -= q_pkt->pkt.size + sizeof(*q_pkt);
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*pkt = q_pkt->pkt;
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av_free(q_pkt);
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ret = 1;
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};
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mutex_unlock(&q->lock);
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return ret;
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}
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