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Code Issues Releases Wiki Activity

Slow forward/back mode

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This commit is contained in:
Klaus Schmidinger 2000-07-30 14:34:07 +02:00
parent 5591027638
commit f8b7403366
4 changed files with 42 additions and 14 deletions
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3
CONTRIBUTORS
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@ -13,3 +13,6 @@ Plamen Ganev <pganev@com-it.net>
Heino Goldenstein <heino.goldenstein@microplex.de>
for modifying scrolling through lists to make it page up and down
Guido Fiala <gfiala@s.netic.de>
for implementing slow forward/back

3
HISTORY
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@ -100,7 +100,7 @@ Video Disk Recorder Revision History
the 'timers.conf' file with a text editor, or by defining/modifying the timer
via the SVDRP interface.
2000-07-29:
2000-07-30:
- When scrolling through a list it now moves a full page up or down when the
cursor reaches the top or bottom of the menu (thanks to Heino Goldenstein!).
@ -111,3 +111,4 @@ Video Disk Recorder Revision History
- Fixed learning key codes for PC keyboard.
- New command line option '-l' to set the log level.
- Times in timers.conf are now always printed with 4 digits (leading '0').
- Slow forward/back mode (thanks to Guido Fiala!).

5
MANUAL
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@ -100,8 +100,9 @@ Video Disk Recorder User's Manual
- Blue Stops playback and stores the current position, so that
playback can be resumed later at that point.
- Left
Right Runs playback forward or backward at a higher speed. Press
again to resume normal speed.
Right Runs playback forward or backward at a higher speed; press
again to resume normal speed. If in Pause mode, runs forward or
backward at a slower speed; press again to return to pause mode.
- Green
Yellow Skips about 60 seconds back or forward.
- Ok Brings up the replay progress display, which shows the date,

45
dvbapi.c
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@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: dvbapi.c 1.17 2000/07/29 19:00:19 kls Exp $
* $Id: dvbapi.c 1.18 2000/07/30 14:34:07 kls Exp $
*/
#include "dvbapi.h"
@ -345,7 +345,7 @@ protected:
int Free(void) { return ((tail >= head) ? size + head - tail : head - tail) - 1; }
int Available(void) { return (tail >= head) ? tail - head : size - head + tail; }
int Readable(void) { return (tail >= head) ? size - tail - (head ? 0 : 1) : head - tail - 1; } // keep a 1 byte gap!
int Writeable(void) { return (tail > head) ? tail - head : size - head; }
int Writeable(void) { return (tail >= head) ? tail - head : size - head; }
int Byte(int Offset);
bool WaitForOutFile(int Timeout);
public:
@ -803,7 +803,7 @@ int cRecordBuffer::WriteWithTimeout(bool EndIfEmpty)
// --- cReplayBuffer ---------------------------------------------------------
enum eReplayMode { rmPlay, rmFastForward, rmFastRewind };
enum eReplayMode { rmPlay, rmFastForward, rmFastRewind, rmSlowRewind };
class cReplayBuffer : public cFileBuffer {
private:
@ -812,6 +812,7 @@ private:
eReplayMode mode;
bool skipAudio;
int lastIndex;
int brakeCounter;
void SkipAudioBlocks(void);
bool NextFile(uchar FileNumber = 0, int FileOffset = -1);
void Close(void);
@ -833,6 +834,7 @@ cReplayBuffer::cReplayBuffer(int *OutFile, const char *FileName)
fileOffset = 0;
replayFile = -1;
mode = rmPlay;
brakeCounter = 0;
skipAudio = false;
lastIndex = -1;
if (!fileName)
@ -863,6 +865,7 @@ void cReplayBuffer::SetMode(eReplayMode Mode)
{
mode = Mode;
skipAudio = Mode != rmPlay;
brakeCounter = 0;
if (mode != rmPlay)
Clear();
}
@ -996,6 +999,10 @@ int cReplayBuffer::Read(int Max = -1)
if (Index >= 0) {
uchar FileNumber;
int FileOffset, Length;
if (mode == rmSlowRewind && (brakeCounter++ % 24) != 0) {
// show every I_FRAME 24 times in rmSlowRewind mode to achieve roughly the same speed as in slow forward mode
Index = index->GetNextIFrame(Index, true, &FileNumber, &FileOffset, &Length); //springe eine Frame vorwärts!
}
Index = index->GetNextIFrame(Index, mode == rmFastForward, &FileNumber, &FileOffset, &Length);
if (Index >= 0) {
if (!NextFile(FileNumber, FileOffset))
@ -1601,18 +1608,34 @@ bool cDvbApi::StartReplay(const char *FileName, const char *Title)
Buffer->SetMode(rmPlay);
break;
case dvbFastForward: SetReplayMode(VID_PLAY_CLEAR_BUFFER);
SetReplayMode(VID_PLAY_NORMAL);
FastForward = !FastForward;
FastRewind = Paused = false;
Buffer->Clear();
Buffer->SetMode(FastForward ? rmFastForward : rmPlay);
FastForward = !FastForward;
FastRewind = false;
if (Paused) {
Buffer->SetMode(rmPlay);
Buffer->Read();
SetReplayMode(FastForward ? VID_PLAY_SLOW_MOTION : VID_PLAY_PAUSE);
Buffer->Write();
}
else {
SetReplayMode(VID_PLAY_NORMAL);
Buffer->SetMode(FastForward ? rmFastForward : rmPlay);
}
break;
case dvbFastRewind: SetReplayMode(VID_PLAY_CLEAR_BUFFER);
SetReplayMode(VID_PLAY_NORMAL);
FastRewind = !FastRewind;
FastForward = Paused = false;
Buffer->Clear();
Buffer->SetMode(FastRewind ? rmFastRewind : rmPlay);
FastRewind = !FastRewind;
FastForward = false;
if (Paused) {
Buffer->SetMode(FastRewind ? rmSlowRewind : rmPlay);
Buffer->Read();
SetReplayMode(FastRewind ? VID_PLAY_NORMAL : VID_PLAY_PAUSE);
Buffer->Write();
}
else {
SetReplayMode(VID_PLAY_NORMAL);
Buffer->SetMode(FastRewind ? rmFastRewind : rmPlay);
}
break;
case dvbSkip: {
int Seconds;