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spinup the disk more early, and a recovery for underruns: seek to the last position.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4300 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jörg Hohensohn 2004-02-06 21:19:05 +00:00
parent bcb4d823b7
commit feb7f91e28
1 changed files with 37 additions and 8 deletions
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45
apps/plugins/video.c
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@ -46,7 +46,7 @@
// trigger levels, we need about 80 kB/sec
#define PRECHARGE (1024 * 64) // the initial filling before starting to play
#define SPINUP 2500 // 2200 // from what level on to refill, in milliseconds
#define SPINUP 3300 // from what level on to refill, in milliseconds
#define CHUNK (1024*32) // read size
@ -537,6 +537,8 @@ int PlayTick(int fd)
int retval = 1;
int filepos;
// check buffer level
if (gPlay.bHasAudio)
avail_audio = Available(gBuf.pReadAudio);
if (gPlay.bHasVideo)
@ -549,7 +551,8 @@ int PlayTick(int fd)
}
if ((!gPlay.bHasAudio || gPlay.bAudioUnderrun)
&& (!gPlay.bHasVideo || gPlay.bVideoUnderrun))
&& (!gPlay.bHasVideo || gPlay.bVideoUnderrun)
&& gBuf.bEOF)
return 0; // all expired
if (!gPlay.bRefilling || gBuf.bEOF)
@ -594,6 +597,8 @@ int PlayTick(int fd)
button = rb->button_get(false);
}
// check keypresses
if (button != BUTTON_NONE)
{
filepos = rb->lseek(fd, 0, SEEK_CUR);
@ -678,6 +683,9 @@ int PlayTick(int fd)
}
} /* if (button != BUTTON_NONE) */
// handle seeking
if (gPlay.bSeeking) // seeking?
{
if (gPlay.nSeekAcc < -MAX_ACC)
@ -696,6 +704,27 @@ int PlayTick(int fd)
DrawPosition(gPlay.nSeekPos, rb->filesize(fd));
}
// check + recover underruns
if ((gPlay.bAudioUnderrun || gPlay.bVideoUnderrun) && !gBuf.bEOF)
{
filepos = rb->lseek(fd, 0, SEEK_CUR);
if (gPlay.bHasVideo && gPlay.bVideoUnderrun)
{
gStats.nVideoUnderruns++;
filepos -= Available(gBuf.pReadVideo); // take video position
SeekTo(fd, filepos);
}
else if (gPlay.bHasAudio && gPlay.bAudioUnderrun)
{
gStats.nAudioUnderruns++;
filepos -= Available(gBuf.pReadAudio); // else audio
SeekTo(fd, filepos);
}
}
return retval;
}
@ -831,21 +860,21 @@ int main(char* filename)
// display statistics
rb->lcd_clear_display();
rb->snprintf(gPrint, sizeof(gPrint), "AudioUnderrun: %d", gPlay.bAudioUnderrun);
rb->snprintf(gPrint, sizeof(gPrint), "%d Audio Underruns", gStats.nAudioUnderruns);
rb->lcd_puts(0, 0, gPrint);
rb->snprintf(gPrint, sizeof(gPrint), "VideoUnderrun: %d", gPlay.bVideoUnderrun);
rb->snprintf(gPrint, sizeof(gPrint), "%d Video Underruns", gStats.nVideoUnderruns);
rb->lcd_puts(0, 1, gPrint);
rb->snprintf(gPrint, sizeof(gPrint), "MinAudio: %d bytes", gStats.minAudioAvail);
rb->snprintf(gPrint, sizeof(gPrint), "%d MinAudio bytes", gStats.minAudioAvail);
rb->lcd_puts(0, 2, gPrint);
rb->snprintf(gPrint, sizeof(gPrint), "MinVideo: %d bytes", gStats.minVideoAvail);
rb->snprintf(gPrint, sizeof(gPrint), "%d MinVideo bytes", gStats.minVideoAvail);
rb->lcd_puts(0, 3, gPrint);
rb->snprintf(gPrint, sizeof(gPrint), "ReadChunk: %d", gBuf.nReadChunk);
rb->lcd_puts(0, 4, gPrint);
rb->snprintf(gPrint, sizeof(gPrint), "SeekChunk: %d", gBuf.nSeekChunk);
rb->lcd_puts(0, 5, gPrint);
rb->snprintf(gPrint, sizeof(gPrint), "1st Video: %d", gFileHdr.video_1st_frame);
rb->snprintf(gPrint, sizeof(gPrint), "LowWater: %d", gBuf.low_water);
rb->lcd_puts(0, 6, gPrint);
rb->snprintf(gPrint, sizeof(gPrint), "pBufStart: %x", gBuf.pBufStart);
rb->snprintf(gPrint, sizeof(gPrint), "HighWater: %d", gBuf.high_water);
rb->lcd_puts(0, 7, gPrint);
rb->lcd_update();