recycled-ni-libstb-hal/libeplayer3/manager/chapter.c

/*
 * chapter manager handling.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

/* ***************************** */
/* Includes                      */
/* ***************************** */

#include <stdlib.h>
#include <string.h>

#include "manager.h"
#include "common.h"

/* ***************************** */
/* Makros/Constants              */
/* ***************************** */
#define TRACKWRAP 64

#define CHAPTER_MGR_DEBUG

#ifdef CHAPTER_MGR_DEBUG

static short debug_level = 0;

#define chapter_mgr_printf(level, x...) do { \
if (debug_level >= level) printf(x); } while (0)
#else
#define chapter_mgr_printf(level, x...)
#endif

#ifndef CHAPTER_MGR_SILENT
#define chapter_mgr_err(x...) do { printf(x); } while (0)
#else
#define chapter_mgr_err(x...)
#endif

/* Error Constants */
#define cERR_CHAPTER_MGR_NO_ERROR        0
#define cERR_CHAPTER_MGR_ERROR          -1

static const char FILENAME[] = __FILE__;

/* ***************************** */
/* Types                         */
/* ***************************** */

/* ***************************** */
/* Varaibles                     */
/* ***************************** */

static Track_t *Tracks = NULL;
static int TrackCount = 0;
static int CurrentTrack = 0;	//TRACK[0] as default.

/* ***************************** */
/* Prototypes                    */
/* ***************************** */

/* ***************************** */
/* Functions                     */
/* ***************************** */

static int ManagerAdd(Context_t * context __attribute__((unused)), Track_t track)
{
    chapter_mgr_printf(10, "%s::%s\n", FILENAME, __FUNCTION__);

    if (Tracks == NULL) {
	Tracks = malloc(sizeof(Track_t) * TRACKWRAP);
	int i;
	for (i = 0; i < TRACKWRAP; i++)
	    Tracks[i].Id = -1;
    }

    if (Tracks == NULL) {
	chapter_mgr_err("%s:%s malloc failed\n", FILENAME, __FUNCTION__);
	return cERR_CHAPTER_MGR_ERROR;
    }

    int i;
    for (i = 0; i < TRACKWRAP; i++) {
	if (Tracks[i].Id == track.Id) {
	    Tracks[i].pending = 0;
	    return cERR_CHAPTER_MGR_NO_ERROR;
	}
    }

    if (TrackCount < TRACKWRAP) {
	copyTrack(&Tracks[TrackCount], &track);

	TrackCount++;
    } else {
	chapter_mgr_err("%s:%s TrackCount out if range %d - %d\n", FILENAME,
		      __FUNCTION__, TrackCount, TRACKWRAP);
	return cERR_CHAPTER_MGR_ERROR;
    }

    chapter_mgr_printf(10, "%s::%s\n", FILENAME, __FUNCTION__);

    return cERR_CHAPTER_MGR_NO_ERROR;
}

static char **ManagerList(Context_t * context __attribute__ ((unused)))
{
    int i = 0, j = 0;
    char **tracklist = NULL;

    chapter_mgr_printf(10, "%s::%s\n", FILENAME, __FUNCTION__);

    if (Tracks != NULL) {

	tracklist = malloc(sizeof(char *) * ((TrackCount * 2) + 1));

	if (tracklist == NULL) {
	    chapter_mgr_err("%s:%s malloc failed\n", FILENAME, __FUNCTION__);
	    return NULL;
	}

	for (i = 0, j = 0; i < TrackCount; i++, j += 2) {
	    if (Tracks[i].pending)
		continue;
	    char tmp[20];
	    snprintf(tmp, sizeof(tmp), "%d", (int)Tracks[i].chapter_start);
	    tracklist[j] = strdup(tmp);
	    tracklist[j + 1] = strdup(Tracks[i].Name);
	}
	tracklist[j] = NULL;
    }

    chapter_mgr_printf(10, "%s::%s return %p (%d - %d)\n", FILENAME,
		     __FUNCTION__, tracklist, j, TrackCount);

    return tracklist;
}

static int ManagerDel(Context_t * context __attribute__((unused)))
{
    int i = 0;

    chapter_mgr_printf(10, "%s::%s\n", FILENAME, __FUNCTION__);

    if (Tracks != NULL) {
	for (i = 0; i < TrackCount; i++) {
	    freeTrack(&Tracks[i]);
	}
	free(Tracks);
	Tracks = NULL;
    } else {
	chapter_mgr_err("%s::%s nothing to delete!\n", FILENAME,
		      __FUNCTION__);
	return cERR_CHAPTER_MGR_ERROR;
    }

    TrackCount = 0;
    CurrentTrack = 0;

    chapter_mgr_printf(10, "%s::%s return no error\n", FILENAME,
		     __FUNCTION__);

    return cERR_CHAPTER_MGR_NO_ERROR;
}

static int Command(void *_context, ManagerCmd_t command, void *argument)
{
    Context_t *context = (Context_t *) _context;
    int ret = cERR_CHAPTER_MGR_NO_ERROR;

    chapter_mgr_printf(10, "%s::%s\n", FILENAME, __FUNCTION__);

    switch (command) {
    case MANAGER_ADD:{
	    Track_t *track = argument;
	    ret = ManagerAdd(context, *track);
	    break;
	}
    case MANAGER_LIST:{
	    container_ffmpeg_update_tracks(context, context->playback->uri, 0);
	    *((char ***) argument) = (char **) ManagerList(context);
	    break;
	}
    case MANAGER_DEL:{
	    ret = ManagerDel(context);
	    break;
	}
    case MANAGER_INIT_UPDATE:{
	    int i;
	    for (i = 0; i < TrackCount; i++)
		Tracks[i].pending = 1;
	    break;
	}
    default:
	chapter_mgr_err("%s::%s ContainerCmd %d not supported!\n", FILENAME,
		      __FUNCTION__, command);
	ret = cERR_CHAPTER_MGR_ERROR;
	break;
    }

    chapter_mgr_printf(10, "%s:%s: returning %d\n", FILENAME, __FUNCTION__,
		     ret);

    return ret;
}


struct Manager_s ChapterManager = {
    "Chapter",
    &Command,
    NULL
};