expected declaration or statement at end of input

也是菜鸟

gcc -c main.c
结果：
main.c: In function ‘encode_thread’:
main.c:70: error: expected ‘while’ before ‘int’
main.c:118: error: expected declaration or statement at end of input
main.c:118: error: expected declaration or statement at end of input

网上搜了半天，都说是括号没配对，可我硬是没找到这样的问题，极度郁闷。求高手帮忙解决。

1. 
   
2. #include <stdlib.h>
   
3. #include <stdio.h>
   
4. #include <string.h>
   
5. #include <alsa/asoundlib.h>
   
6. #include <pthread.h>
   
7. #include <signal.h>
   
8. #include "avilib.h"
   
9. #include "ts_alsa.h"
   
10. #include "ts_v4l2.h"
    
11. #include "ts_queue.h"
    
12. 
    
13. char * avifile = "example.avi";
    
14. int actual_fps = 0;
    
15. int actual_rate = 0;
    
16. pthread_t  pid;
    
17. /*
    
18. static void printferr()
    
19. {
    
20. printf("there are some error with dev!\n");
    
21. exit(-1);
    
22. }
    
23. */
    
24. void pthread_exit(void *arg)
    
25. {
    
26. if( arg !=NULL )
    
27.   AVI_close( (avi_t *)arg );
    
28. }
    
29. void signal_hander(int signal)
    
30. {
    
31. pthread_cancel(pid);
    
32. ts_close_alsa();
    
33. ts_close_v4l2();
    
34. }
    
35. 
    
36. void encode_thread()
    
37. {
    
38. int i = 0;
    
39. char * vbuf = NULL;
    
40. char * abuf = NULL;
    
41. unsigned int vlen = 0;
    
42. unsigned int alen = 0;
    
43. int isKeyFrame = 0;
    
44. avi_t * aviinfo = NULL;
    
45. //register cleanup function
    
46. pthread_cleanup_push( pthread_exit, (void *)aviinfo );
    
47. aviinfo = AVI_open_output_file(avifile);
    
48. AVI_set_video(aviinfo, 640, 480, (double)actual_fps, "YUYV");
    
49. AVI_set_audio(aviinfo, 2, (long)actual_rate, 16,WAVE_FORMAT_PCM, 128);
    
50. while(1)
    
51. {
    
52.   //specify a keyframe per ten frames ,it affects the size of file
    
53.   if(i>=2)
    
54.   {
    
55.    isKeyFrame = 1;
    
56.    i = -1;
    
57.   }
    
58.   
    
59.   if( get_head_node(&vbuf, &vlen, &abuf, &alen) == 0)
    
60.   {
    
61.    AVI_write_frame(aviinfo, vbuf, vlen, isKeyFrame);
    
62.    AVI_write_audio(aviinfo, abuf, alen);
    
63.    discard_head_node();
    
64.   }
    
65.   i++;
    
66.   isKeyFrame = 0;
    
67. }
    
68. }
    
69. 
    
70. int main(int argc, char **argv)
    
71. {
    
72. char * devName = "/dev/video0";
    
73. struct ts_element avbuf;
    
74. //open v4l2 and init it
    
75. ts_open_v4l2(devName);
    
76. actual_fps = ts_init_v4l2();
    
77. ts_enable_v4l2();
    
78. //open alsa and init it
    
79. ts_open_alsa("default",SND_PCM_STREAM_CAPTURE);
    
80. actual_rate = ts_init_alsa(SND_PCM_ACCESS_RW_INTERLEAVED,SND_PCM_FORMAT_S16_LE,44100,2);
    
81. //register signal hander
    
82. signal(SIGINT,signal_hander);
    
83. signal(SIGQUIT,signal_hander);
    
84. 
    
85. //creat queue, init it
    
86. init_queue(5);
    
87. //create thread to encode V & a
    
88. if( pthread_create(&pid, NULL, encode_thread,NULL) != 0)
    
89. {
    
90.   perror("Error: cannot create encoding thread, \n");
    
91. }
    
92. int i = 0;
    
93. int frames = 10;
    
94. int av_ratio = actual_rate/actual_fps;
    
95. int cycleNum = av_ratio/frames;
    
96. 
    
97. int tmplen1 = 0;
    
98. char * tmp = (char *)malloc(4*frames);
    
99. if(tmp == NULL)
    
100. {
     
101.   printf("a error occurs ,exit...\n");
     
102.   exit(-1);
     
103. }
     
104. while(1)
     
105. {
     
106.   ts_get_frame( avbuf.vBuf, &avbuf.VideoUsed );
     
107.   
     
108.   avbuf.AudioUsed = 0;
     
109.   for(i = 0; i<cycleNum ; i++)
     
110.   {
     
111.    ts_read_alsa(tmp, &tmplen1, frames);
     
112.    memcpy( &avbuf.aBuf[avbuf.AudioUsed] ,  tmp , tmplen1 );
     
113.    avbuf.AudioUsed += tmplen1;
     
114.   }
     
115.   in_queue( avbuf.vBuf, avbuf.VideoUsed,  avbuf.aBuf, avbuf.AudioUsed);
     
116. }
     
117. return 0;
     
118. }
     

复制代码

happy_fish100

回复 1# 也是菜鸟

pthread_cleanup_push后面必要要跟上pthread_cleanup_pop。

pthread_cleanup_push和pthread_cleanup_pop都是宏定义：
#define pthread_cleanup_push(routine,arg) \
  { struct _pthread_cleanup_buffer _buffer;                                   \
    _pthread_cleanup_push (&_buffer, (routine), (arg));


#define pthread_cleanup_pop(execute) \
    _pthread_cleanup_pop (&_buffer, (execute)); }

也是菜鸟

回复  也是菜鸟

pthread_cleanup_push后面必要要跟上pthread_cleanup_pop。

pthread_cleanup_push和 ...
happy_fish100 发表于 2010-04-23 12:04

    说的是啊，我第一次用这函数（严格说，是宏，汗。。。），没记牢要配对。我试试先。

churchmice

cc -E 看下预处理以后的结果，应该是宏展开的时候出问题了

也是菜鸟

谢谢两位的回答，我加了个pthread_cleanuop_pop(1);后问题没有了。
继续鼓捣。。。。。。