Why the buffer is 0 when I play the "rtsp" movie from the internet?
I wrote a appliaction to play the movie from the internet.I try many
times and could not found out the reason ,so I decided to have a look
at opencore source code.
I look at the opencore source code ,and I find that it is the most
important code is below.But I could not find out how the percentage is
increasing .So I could not find out where the reason caused all
these.could someone give me a hand?
——————————————————————————————————————
void PlayerDriver::HandleInformationalEvent(const
PVAsyncInformationalEvent& aEvent)
{
......
case PVMFInfoBufferingStatus:
{
const void *buffer = aEvent.GetLocalBuffer();
const size_t size = aEvent.GetLocalBufferSize();
int percentage;
if (GetBufferingPercentage(buffer, size, &percentage))
{
//This place print the log "D/PlayerDriver( 31):
buffering (0)"
LOGD("buffering (%d)", percentage);
mPvPlayer->sendEvent(MEDIA_BUFFERING_UPDATE,
percentage);
}
}
break;
......
-----------------------------------------------------------------------------------------------------
bool GetBufferingPercentage(const void *buffer,
const size_t size,
int *percentage)
{
if (buffer == NULL) {
LOGI(" GetBufferingPercentage Invalid buffer: NULL");
LOGE("Invalid buffer: NULL");
return false;
}
if (sizeof(int) != size)
{
LOGE("Invalid percentage buffer size %d (expected %d)", size,
sizeof(int));
return false;
}
// TODO: The PVEvent class should expose a memcopy method
// that does bound checking instead of having clients reaching
// for its internal buffer.
// Clamp the value and complain loudly.
oscl_memcpy(percentage, buffer, sizeof(int));
if (*percentage < 0 || *percentage > 100)
{
LOGE("Invalid percentage value %d", *percentage);
return false;
}
return true;
}
____________________________________________________________-
log
D/PlayerDriver( 31): buffering (0)
D/PlayerDriver( 31): buffering (0)
D/PlayerDriver( 31): buffering (0)
D/PlayerDriver( 31): buffering (0)
D/PlayerDriver( 31): buffering (0)
D/PlayerDriver( 31): buffering (0)
D/PlayerDriver( 31): buffering (0)
D/PlayerDriver( 31): buffering (0)
D/PlayerDriver( 31): buffering (0)
D/PlayerDriver( 31): buffering (0)
D/PlayerDriver( 31): buffering (0)
while play the "http" movie ,it's ok;
and now I don't konw where the percentage is not increasing ,and how
the percentage is increasing.
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