init.cxx

很不错的播放代玛

      sadd_hhmmssf(line, &pos, width, a_pos);
      saddf(line, &pos, width, ") of %.1f (", len);
      sadd_hhmmssf(line, &pos, width, len);
      saddf(line, &pos, width, ") ");
    }
  }

  // Video time
  if (sh_video)
    saddf(line, &pos, width, "V:%6.1f ", sh_video->pts);

  // A-V sync
  if (sh_audio && sh_video)
    saddf(line, &pos, width, "A-V:%7.3f ct:%7.3f ", a_v, corr);

  // Video stats
  if (sh_video)
    saddf(line, &pos, width, "%3d/%3d ",
      (int)sh_video->num_frames,
      (int)sh_video->num_frames_decoded);

  // CPU usage
  if (sh_video) {
    if (sh_video->timer > 0.5)
      saddf(line, &pos, width, "%2d%% %2d%% %4.1f%% ",
        (int)(100.0*video_time_usage*playback_speed/(double)sh_video->timer),
        (int)(100.0*vout_time_usage*playback_speed/(double)sh_video->timer),
        (100.0*audio_time_usage*playback_speed/(double)sh_video->timer));
    else
      saddf(line, &pos, width, "??%% ??%% ??,?%% ");
  } else if (sh_audio) {
    if (sh_audio->delay > 0.5)
      saddf(line, &pos, width, "%4.1f%% ",
        100.0*audio_time_usage/(double)sh_audio->delay);
    else
      saddf(line, &pos, width, "??,?%% ");
  }

  // VO stats
  if (sh_video) 
    saddf(line, &pos, width, "%d %d ", drop_frame_cnt, output_quality);

#ifdef USE_STREAM_CACHE
  // cache stats
  if (stream_cache_size > 0)
    saddf(line, &pos, width, "%d%% ", cache_fill_status);
#endif

  // other
  if (playback_speed != 1)
    saddf(line, &pos, width, "%4.2fx ", playback_speed);

  // end
  if (erase_to_end_of_line) {
    line[pos] = 0;
    mp_msg(MSGT_AVSYNC, MSGL_STATUS, "%s%s\r", line, erase_to_end_of_line);
  } else {
    memset(&line[pos], ' ', width - pos);
    line[width] = 0;
    mp_msg(MSGT_AVSYNC, MSGL_STATUS, "%s\r", line);
  }
  free(line);
}

/**
 * \brief build a chain of audio filters that converts the input format
 * to the ao's format, taking into account the current playback_speed.
 * \param sh_audio describes the requested input format of the chain.
 * \param ao_data describes the requested output format of the chain.
 */
static int build_afilter_chain(sh_audio_t *sh_audio, ao_data_t *ao_data)
{
  int new_srate;
  int result;
  if (!sh_audio)
  {
#ifdef HAVE_NEW_GUI
    guiGetEvent(guiSetAfilter, (char *)NULL);
#endif
    mixer.afilter = NULL;
    return 0;
  }
  new_srate = sh_audio->samplerate * playback_speed;
  if (new_srate != ao_data->samplerate) {
    // limits are taken from libaf/af_resample.c
    if (new_srate < 8000)
      new_srate = 8000;
    if (new_srate > 192000)
      new_srate = 192000;
    playback_speed = (float)new_srate / (float)sh_audio->samplerate;
  }
  result =  init_audio_filters(sh_audio, new_srate,
           sh_audio->channels, sh_audio->sample_format,
           &ao_data->samplerate, &ao_data->channels, &ao_data->format,
           ao_data->outburst * 4, ao_data->buffersize);
  mixer.afilter = sh_audio->afilter;
#ifdef HAVE_NEW_GUI
  guiGetEvent(guiSetAfilter, (char *)sh_audio->afilter);
#endif
  return result;
}

#ifdef USE_SUB
/**
 * \brief Log the currently displayed subtitle to a file
 * 
 * Logs the current or last displayed subtitle together with filename
 * and time information to ~/.mplayer/subtitle_log
 *
 * Intended purpose is to allow convenient marking of bogus subtitles
 * which need to be fixed while watching the movie.
 */

static void log_sub(void){
    char *fname;
    FILE *f;
    int i;

    if (subdata == NULL || vo_sub_last == NULL) return;
    fname = get_path("subtitle_log");
    f = fopen(fname, "a");
    if (!f) return;
    fprintf(f, "----------------------------------------------------------\n");
    if (subdata->sub_uses_time) {
	fprintf(f, "N: %s S: %02ld:%02ld:%02ld.%02ld E: %02ld:%02ld:%02ld.%02ld\n", filename, 
		vo_sub_last->start/360000, (vo_sub_last->start/6000)%60,
		(vo_sub_last->start/100)%60, vo_sub_last->start%100,
		vo_sub_last->end/360000, (vo_sub_last->end/6000)%60,
		(vo_sub_last->end/100)%60, vo_sub_last->end%100);
    } else {
	fprintf(f, "N: %s S: %ld E: %ld\n", filename, vo_sub_last->start, vo_sub_last->end);
    }
    for (i = 0; i < vo_sub_last->lines; i++) {
	fprintf(f, "%s\n", vo_sub_last->text[i]);
    }
    fclose(f);
}
#endif /* USE_SUB */

/// \defgroup OSDMsgStack OSD message stack
///
///@{

#define OSD_MSG_TV_CHANNEL              0
#define OSD_MSG_TEXT                    1
#define OSD_MSG_SUB_DELAY               2
#define OSD_MSG_SPEED                   3
#define OSD_MSG_OSD_STATUS              4
#define OSD_MSG_BAR                     5
#define OSD_MSG_PAUSE                   6
/// Base id for messages generated from the commmand to property bridge.
#define OSD_MSG_PROPERTY                0x100


typedef struct mp_osd_msg mp_osd_msg_t;
struct mp_osd_msg {
    /// Previous message on the stack.
    mp_osd_msg_t* prev;
    /// Message text.
    char msg[64];
    int  id,level,started;
    /// Display duration in ms.
    unsigned  time;
};

/// OSD message stack.
static mp_osd_msg_t* osd_msg_stack = NULL;

/**
 *  \brief Add a message on the OSD message stack
 * 
 *  If a message with the same id is already present in the stack
 *  it is pulled on top of the stack, otherwise a new message is created.
 *  
 */

static void set_osd_msg(int id, int level, int time, char* fmt, ...) {
    mp_osd_msg_t *msg,*last=NULL;
    va_list va;
    int r;
   
    // look if the id is already in the stack
    for(msg = osd_msg_stack ; msg && msg->id != id ;
	last = msg, msg = msg->prev);
    // not found: alloc it
    if(!msg) {
        msg = calloc(1,sizeof(mp_osd_msg_t));
        msg->prev = osd_msg_stack;
        osd_msg_stack = msg;
    } else if(last) { // found, but it's not on top of the stack
        last->prev = msg->prev;
        msg->prev = osd_msg_stack;
        osd_msg_stack = msg;
    }
    // write the msg
    va_start(va,fmt);
    r = vsnprintf(msg->msg, 64, fmt, va);
    va_end(va);
    if(r >= 64) msg->msg[63] = 0;
    // set id and time
    msg->id = id;
    msg->level = level;
    msg->time = time;
    
}

/**
 *  \brief Remove a message from the OSD stack
 * 
 *  This function can be used to get rid of a message right away.
 * 
 */

static void rm_osd_msg(int id) {
    mp_osd_msg_t *msg,*last=NULL;
    
    // Search for the msg
    for(msg = osd_msg_stack ; msg && msg->id != id ;
	last = msg, msg = msg->prev);
    if(!msg) return;

    // Detach it from the stack and free it
    if(last)
        last->prev = msg->prev;
    else
        osd_msg_stack = msg->prev;
    free(msg);
}

/**
 *  \brief Remove all messages from the OSD stack
 * 
 */

static void clear_osd_msgs(void) {
    mp_osd_msg_t* msg = osd_msg_stack, *prev = NULL;
    while(msg) {
        prev = msg->prev;
        free(msg);
        msg = prev;
    }
    osd_msg_stack = NULL;
}

/**
 *  \brief Get the current message from the OSD stack.
 * 
 *  This function decrements the message timer and destroys the old ones.
 *  The message that should be displayed is returned (if any).
 *  
 */

static mp_osd_msg_t* get_osd_msg(void) {
    mp_osd_msg_t *msg,*prev,*last = NULL;
    static unsigned last_update = 0;
    unsigned now = GetTimerMS();
    unsigned diff;
    char hidden_dec_done = 0;
    
    if(!last_update) last_update = now;
    diff = now >= last_update ? now - last_update : 0;
    
    last_update = now;
    
    // Look for the first message in the stack with high enough level.
    for(msg = osd_msg_stack ; msg ; last = msg, msg = prev) {
        prev = msg->prev;
        if(msg->level > osd_level && hidden_dec_done) continue;
        // The message has a high enough level or it is the first hidden one
        // in both cases we decrement the timer or kill it.
        if(!msg->started || msg->time > diff) {
            if(msg->started) msg->time -= diff;
            else msg->started = 1;
            // display it
            if(msg->level <= osd_level) return msg;
            hidden_dec_done = 1;
            continue;
        }
        // kill the message
        free(msg);
        if(last) {
            last->prev = prev;
            msg = last;
        } else {
            osd_msg_stack = prev;
            msg = NULL;
        }
    }
    // Nothing found
    return NULL;
}

// Make a define to test if we are using the term OSD without having
// to #ifdef USE_OSD all the time.
#ifdef USE_OSD
#define use_term_osd (term_osd && !sh_video)
#else
#define use_term_osd (term_osd)
#endif

/**
 * \brief Display the OSD bar.
 *
 * Display the OSD bar or fall back on a simple message.
 *
 */

void set_osd_bar(int type,char* name,double min,double max,double val) {
    
    if(osd_level < 1) return;
    
#ifdef USE_OSD
    if(sh_video) {
        osd_visible = (GetTimerMS() + 1000) | 1;
        vo_osd_progbar_type = type;
        vo_osd_progbar_value = 256*(val-min)/(max-min);
        vo_osd_changed(OSDTYPE_PROGBAR);
        return;
    }
#endif
    
    set_osd_msg(OSD_MSG_BAR,1,osd_duration,"%s: %d %%",
                name,ROUND(100*(val-min)/(max-min)));
}


/**
 * \brief Update the OSD message line.
 *
 * This function displays the current message on the vo OSD or on the term.
 * If the stack is empty and the OSD level is high enough the timer
 * is displayed (only on the vo OSD).
 * 
 */

static void update_osd_msg(void) {
    mp_osd_msg_t *msg;
    static char osd_text[64] = "";
    static char osd_text_timer[64];
    
#ifdef USE_OSD    
    // we need some mem for vo_osd_text
    vo_osd_text = (unsigned char*)osd_text;
#endif
    
    // Look if we have a msg
    if((msg = get_osd_msg())) {
        if(strcmp(osd_text,msg->msg)) {
            strncpy((char*)osd_text, msg->msg, 63);
#ifdef USE_OSD
            if(sh_video) vo_osd_changed(OSDTYPE_OSD); else 
#endif
            if(term_osd) printf("%s%s\n",term_osd_esc,msg->msg);
        }
        return;
    }
        
#ifdef USE_OSD
    if(sh_video) {
        // fallback on the timer
        if(osd_level>=2) {
            int len = demuxer_get_time_length(demuxer);
            int percentage = -1;
            char percentage_text[10];
            static int last_pts = -303;
            int pts = sh_video->pts;
            if(pts==last_pts-1) ++pts; else last_pts=pts;
            
            if (osd_show_percentage)
                percentage = demuxer_get_percent_pos(demuxer);
            
            if (percentage >= 0)
                snprintf(percentage_text, 9, " (%d%%)", percentage);
            else
                percentage_text[0] = 0;
            
            if (osd_level == 3) 
                snprintf(osd_text_timer, 63,
                         "%c %02d:%02d:%02d / %02d:%02d:%02d%s",
                         osd_function,pts/3600,(pts/60)%60,pts%60,
                         len/3600,(len/60)%60,len%60,percentage_text);
            else
                snprintf(osd_text_timer, 63, "%c %02d:%02d:%02d%s",
                         osd_function,pts/3600,(pts/60)%60,
                         pts%60,percentage_text);
        } else
            osd_text_timer[0]=0;
        
        // always decrement the percentage timer
        if(osd_show_percentage)
            osd_show_percentage--;
        
        if(strcmp(osd_text,osd_text_timer)) {
            strncpy(osd_text, osd_text_timer, 63);
            vo_osd_changed(OSDTYPE_OSD);
        }
        return;
    }
#endif
        
    // Clear the term osd line
    if(term_osd && osd_text[0]) {
        osd_text[0] = 0;
        printf("%s\n",term_osd_esc);
    }
}

///@}
// OSDMsgStack

/// \defgroup Properties
///@{

/// \defgroup GeneralProperties General properties
/// \ingroup Properties
///@{

/// OSD level (RW)
static int mp_property_osdlevel(m_option_t* prop,int action,void* arg) {
    return m_property_choice(prop,action,arg,&osd_level);
}

/// Playback speed (RW)
static int mp_property_playback_speed(m_option_t* prop,int action,void* arg) {
    switch(action) {
    case M_PROPERTY_SET:
        if(!arg) return 0;
        M_PROPERTY_CLAMP(prop,*(float*)arg);
        playback_speed = *(float*)arg;
        build_afilter_chain(sh_audio, &ao_data);
        return 1;
    case M_PROPERTY_STEP_UP:
    case M_PROPERTY_STEP_DOWN:
        playback_speed += (arg ? *(float*)arg : 0.1) *
            (action == M_PROPERTY_STEP_DOWN ? -1 : 1);
        M_PROPERTY_CLAMP(prop,playback_speed);
        build_afilter_chain(sh_audio, &ao_data);
        return 1;
    }
    return m_property_float_range(prop,action,arg,&playback_speed);
}

/// filename with path (RO)
static int mp_property_path(m_option_t* prop,int action,void* arg) {
    return m_property_string_ro(prop,action,arg,filename);
}

/// filename without path (RO)
static int mp_property_filename(m_option_t* prop,int action,void* arg) {
    char* f;
    if(!filename) return M_PROPERTY_UNAVAILABLE;
    if(((f = strrchr(filename,'/')) || (f = strrchr(filename,'\\'))) && f[1])
        f++;
    else
        f = filename;
    return m_property_string_ro(prop,action,arg,f);