option to resume to the position it was stopped last time
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4301 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Jörg Hohensohn
parent
feb7f91e28
commit
06500c84ce
1 changed files with 59 additions and 53 deletions
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@ -84,7 +84,8 @@ typedef struct // contains whatever might be useful to the player
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unsigned long blocksize; // how many bytes per block (=video frame)
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unsigned long bps_average; // bits per second of the whole stream
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unsigned long bps_peak; // max. of above (audio may be VBR)
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unsigned long reserved[10]; // reserved, should be zero
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unsigned long resume_pos; // file position to resume to
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unsigned long reserved[9]; // reserved, should be zero
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// video info (16 entries = 64 byte)
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unsigned long video_format; // one of VIDEOFORMAT_xxx
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@ -138,8 +139,8 @@ static struct
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{
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enum
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{
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playing,
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paused,
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playing,
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} state;
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bool bAudioUnderrun;
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bool bVideoUnderrun;
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@ -198,42 +199,25 @@ int Available(unsigned char* pSnapshot)
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// debug function to draw buffer indicators
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void DrawBuf(void)
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{
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static int old_fill = -1; // indicate not initialized
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static int old_video;
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static int old_audio;
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int fill, video, audio;
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// first call?
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if (old_fill == -1)
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{
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rb->memset(gBuf.pOSD, 0x10, LCD_WIDTH); // draw line
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gBuf.pOSD[0] = gBuf.pOSD[LCD_WIDTH-1] = 0xFE; // ends
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old_fill = 1; // do no harm below
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}
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// calculate new tick positions
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fill = 1 + ((gBuf.pBufFill - gBuf.pBufStart) * (LCD_WIDTH-2)) / gBuf.bufsize;
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video = 1 + ((gBuf.pReadVideo - gBuf.pBufStart) * (LCD_WIDTH-2)) / gBuf.bufsize;
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audio = 1 + ((gBuf.pReadAudio - gBuf.pBufStart) * (LCD_WIDTH-2)) / gBuf.bufsize;
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if (fill != old_fill || video != old_video || audio != old_audio)
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{
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// erase old ticks
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gBuf.pOSD[old_fill] = 0x10;
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gBuf.pOSD[old_video] = 0x10;
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gBuf.pOSD[old_audio] = 0x10;
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gBuf.pOSD[fill] |= 0x20; // below the line, two pixels
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gBuf.pOSD[video] |= 0x08; // one above
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gBuf.pOSD[audio] |= 0x04; // two above
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old_fill = fill;
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old_video = video;
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old_audio = audio;
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if (gPlay.state == paused) // we have to draw ourselves
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rb->lcd_update_rect(0, LCD_HEIGHT-8, LCD_WIDTH, 8);
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else
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gPlay.bDirtyOSD = true; // redraw it with next timer IRQ
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}
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}
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// helper function to draw a position indicator
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@ -469,6 +453,23 @@ int WaitForButton(void)
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}
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bool WantResume(int fd)
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{
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int button;
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rb->lcd_puts(0, 0, "Resume to this");
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rb->lcd_puts(0, 1, "last position?");
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rb->lcd_puts(0, 2, "PLAY = yes");
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rb->lcd_puts(0, 3, "Any Other = no");
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rb->lcd_puts(0, 4, " (plays from start)");
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DrawPosition(gFileHdr.resume_pos, rb->filesize(fd));
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rb->lcd_update();
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button = WaitForButton();
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return (button == BUTTON_PLAY);
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}
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int SeekTo(int fd, int nPos)
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{
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int read_now, got_now;
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@ -505,18 +506,18 @@ int SeekTo(int fd, int nPos)
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while (((tAudioFrameHeader*)(gBuf.pReadAudio))->magic != AUDIO_MAGIC)
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gBuf.pReadAudio += gFileHdr.blocksize;
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rb->mp3_play_data(gBuf.pReadAudio + gFileHdr.audio_headersize,
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gFileHdr.blocksize - gFileHdr.audio_headersize, GetMoreMp3);
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if (gPlay.bHasVideo)
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SyncVideo(); // pick the right video for that
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}
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}
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// synchronous start
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gPlay.state = playing;
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if (gPlay.bHasAudio)
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{
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gPlay.bAudioUnderrun = false;
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rb->mp3_play_data(gBuf.pReadAudio + gFileHdr.audio_headersize,
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gFileHdr.blocksize - gFileHdr.audio_headersize, GetMoreMp3);
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rb->mp3_play_pause(true); // kickoff audio
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}
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if (gPlay.bHasVideo)
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@ -553,7 +554,15 @@ int PlayTick(int fd)
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if ((!gPlay.bHasAudio || gPlay.bAudioUnderrun)
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&& (!gPlay.bHasVideo || gPlay.bVideoUnderrun)
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&& gBuf.bEOF)
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{
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if (gFileHdr.resume_pos)
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{ // we played til the end, clear resume position
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gFileHdr.resume_pos = 0;
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rb->lseek(fd, 0, SEEK_SET); // save resume position
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rb->write(fd, &gFileHdr, sizeof(gFileHdr));
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}
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return 0; // all expired
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}
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if (!gPlay.bRefilling || gBuf.bEOF)
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{ // nothing to do
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@ -611,6 +620,13 @@ int PlayTick(int fd)
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switch (button)
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{ // set exit conditions
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case BUTTON_OFF:
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if (gFileHdr.magic == HEADER_MAGIC // only if file has header
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&& !(gFileHdr.flags & FLAG_LOOP)) // not for stills
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{
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gFileHdr.resume_pos = filepos;
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rb->lseek(fd, 0, SEEK_SET); // save resume position
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rb->write(fd, &gFileHdr, sizeof(gFileHdr));
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}
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retval = 0; // signal "stop" to caller
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break;
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case SYS_USB_CONNECTED:
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@ -680,6 +696,12 @@ int PlayTick(int fd)
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else
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gPlay.nSeekAcc++;
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break;
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case BUTTON_F1: // debug key
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case BUTTON_F1 | BUTTON_REPEAT:
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DrawBuf(); // show buffer status
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gPlay.nTimeOSD = 30;
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gPlay.bDirtyOSD = true;
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break;
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}
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} /* if (button != BUTTON_NONE) */
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@ -738,7 +760,7 @@ int main(char* filename)
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int retval;
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// try to open the file
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fd = rb->open(filename, O_RDONLY);
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fd = rb->open(filename, O_RDWR);
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if (fd < 0)
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return PLUGIN_ERROR;
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file_size = rb->filesize(fd);
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@ -749,15 +771,13 @@ int main(char* filename)
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// init playback state
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rb->memset(&gPlay, 0, sizeof(gPlay));
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gPlay.state = playing;
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// init buffer
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rb->memset(&gBuf, 0, sizeof(gBuf));
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gBuf.pOSD = rb->lcd_framebuffer + LCD_WIDTH*7; // last screen line
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gBuf.pBufStart = rb->plugin_get_mp3_buffer(&gBuf.bufsize);
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//gBuf.bufsize = 1700*1024; // test!!!!
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//gBuf.bufsize = 1700*1024; // test, like 2MB version!!!!
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gBuf.pBufFill = gBuf.pBufStart; // all empty
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gBuf.pReadVideo = gBuf.pReadAudio = gBuf.pBufStart;
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// load file header
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read_now = sizeof(gFileHdr);
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@ -800,19 +820,10 @@ int main(char* filename)
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gBuf.nSeekChunk += gBuf.granularity - 1; // round up
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gBuf.nSeekChunk -= gBuf.nSeekChunk % gBuf.granularity; // and align
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// precharge buffer with more data
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read_now = MAX(gFileHdr.audio_1st_frame, gFileHdr.video_1st_frame);
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read_now = (read_now + PRECHARGE + gBuf.granularity - 1);
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read_now -= read_now % gBuf.granularity; // round up to granularity
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got_now = rb->read(fd, gBuf.pBufFill, read_now);
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gBuf.pBufFill += got_now;
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// prepare video playback, if contained
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if (gFileHdr.video_format == VIDEOFORMAT_RAW)
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{
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gBuf.pReadVideo += gFileHdr.video_1st_frame;
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gPlay.bHasVideo = true;
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if (rb->global_settings->backlight_timeout > 0)
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rb->backlight_set_timeout(1); // keep the light on
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}
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@ -820,21 +831,16 @@ int main(char* filename)
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// prepare audio playback, if contained
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if (gFileHdr.audio_format == AUDIOFORMAT_MP3_BITSWAPPED)
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{
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gBuf.pReadAudio += gFileHdr.audio_1st_frame;
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gPlay.bHasAudio = true;
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rb->mp3_play_init();
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rb->mp3_play_data(gBuf.pReadAudio + gFileHdr.audio_headersize,
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gFileHdr.blocksize - gFileHdr.audio_headersize, GetMoreMp3);
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rb->mpeg_sound_set(SOUND_VOLUME, rb->global_settings->volume);
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}
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// synchronous start
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gPlay.state = playing;
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if (gPlay.bHasAudio)
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rb->mp3_play_pause(true); // kickoff audio
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if (gPlay.bHasVideo)
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timer_set(gFileHdr.video_frametime); // start display interrupt
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// start playback by seeking to zero or resume position
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if (gFileHdr.resume_pos && WantResume(fd)) // ask the user
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SeekTo(fd, gFileHdr.resume_pos);
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else
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SeekTo(fd, 0);
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// all that's left to do is keep the buffer full
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do // the main loop
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