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azbox: fix cVideo::ShowPicture

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This commit is contained in:
Stefan Seyfried
2012-06-24 00:14:55 +02:00
parent f0cc9479cf
commit 2e05d5fd6f
1 changed files with 16 additions and 5 deletions
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15
azbox/video.cpp
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@@ -335,7 +335,7 @@ void cVideo::SetVideoMode(analog_mode_t mode)
void cVideo::ShowPicture(const char * fname)
{
lt_debug("%s(%s)\n", __func__, fname);
static const unsigned char pes_header[] = { 0x00, 0x00, 0x01, 0xE0, 0x00, 0x00, 0x80, 0x00, 0x00 };
static const unsigned char pes_header[] = { 0, 0, 1, 0xE0, 0, 0, 0x80, 0x80, 5, 0x21, 0, 1, 0, 1};
static const unsigned char seq_end[] = { 0x00, 0x00, 0x01, 0xB7 };
char destname[512];
char cmd[512];
@@ -395,6 +395,7 @@ void cVideo::ShowPicture(const char * fname)
lt_info("%s: VIDEO_SET_FORMAT failed (%m)\n", __func__);
bool seq_end_avail = false;
size_t pos=0;
int count = 7;
unsigned char *iframe = (unsigned char *)malloc((st.st_size < 8192) ? 8192 : st.st_size);
if (! iframe)
{
@@ -402,20 +403,30 @@ void cVideo::ShowPicture(const char * fname)
goto out;
}
read(mfd, iframe, st.st_size);
ioctl(fd, VIDEO_SET_STREAMTYPE, VIDEO_FORMAT_MPEG2);
ioctl(fd, VIDEO_SELECT_SOURCE, VIDEO_SOURCE_MEMORY);
ioctl(fd, VIDEO_PLAY);
ioctl(fd, VIDEO_CONTINUE);
ioctl(fd, VIDEO_CLEAR_BUFFER);
while (pos <= (st.st_size-4) && !(seq_end_avail = (!iframe[pos] && !iframe[pos+1] && iframe[pos+2] == 1 && iframe[pos+3] == 0xB7)))
++pos;
while (count--)
{
if ((iframe[3] >> 4) != 0xE) // no pes header
{
write(fd, pes_header, sizeof(pes_header));
usleep(8000);
}
else
iframe[4] = iframe[5] = 0x00;
write(fd, iframe, st.st_size);
usleep(8000);
}
if (!seq_end_avail)
write(fd, seq_end, sizeof(seq_end));
memset(iframe, 0, 8192);
write(fd, iframe, 8192);
ioctl(fd, VIDEO_STOP, 0);
ioctl(fd, VIDEO_SELECT_SOURCE, VIDEO_SOURCE_DEMUX);
free(iframe);
}