std::shared_ptr<AVFrame> poll()
{
if(packets_.empty())
return nullptr;
auto packet = packets_.front();
if(packet->data == nullptr)
{
if(codec_context_->codec->capabilities & CODEC_CAP_DELAY)
{
auto video = decode(packet);
if(video)
return video;
}
packets_.pop();
file_frame_number_ = static_cast<size_t>(packet->pos);
avcodec_flush_buffers(codec_context_.get());
return flush_video();
}
packets_.pop();
return decode(packet);
}
static void
finalize (GObject *object)
{
GeglProperties *o = GEGL_PROPERTIES (object);
if (o->user_data)
{
Priv *p = (Priv*)o->user_data;
flush_audio (o);
flush_video (o);
av_write_trailer (p->oc);
if (p->video_st)
close_video (p, p->oc, p->video_st);
if (p->audio_st)
close_audio (p, p->oc, p->audio_st);
avio_closep (&p->oc->pb);
avformat_free_context (p->oc);
g_free (o->user_data);
o->user_data = NULL;
}
G_OBJECT_CLASS (g_type_class_peek_parent (G_OBJECT_GET_CLASS (object)))->finalize (object);
}
void kmain( void* mbd, unsigned int magic )
{
if ( magic != 0x2BADB002 ) {
/* Something went not according to specs. Print an error */
/* message and halt, but do *not* rely on the multiboot */
/* data structure. */
unsigned char *videoram = (unsigned char *) 0xb8000;
videoram[0] = 66; /* character 'B' */
videoram[1] = 0x07; /* forground, background color. */
}
/* You could either use multiboot.h */
/* (http://www.gnu.org/software/grub/manual/multiboot/multiboot.html#multiboot_002eh) */
/* or do your offsets yourself. The following is merely an example. */
char * boot_loader_name =(char*) ((long*)mbd)[16];
/* Write your kernel here. */
flush_video(' ');
push_line(boot_loader_name);
push_line("Hello World");
push_line("This is a test");
push_line("This is a test");
push_line("Hello World");
printk("iKern> ", (80 * 24) * 2);
printk("iKern> ", (80 * 24) * 2);
/*
while (1)
{
change_term_color(0x07);
2 * 4 *2 +4 +2;
change_term_color(0x1f);
2 * 4 *2 +4 +2;
change_term_color(0x2a);
2 * 4 *2 +4 +2;
}
while (1)
{
int j = 0;
unsigned char * videoram = (unsigned char *) 0xb8000;
unsigned char * ram = (unsigned char *) 0x00000;
for (int i = 0; i < (1920 * 2); i += 2)
{
videoram[i] = ram[j];
videoram[i + 1] = 0x07;
j++;
}
}
*/
//unsigned char *videoram = (unsigned char *) 0xb8000;
//videoram[1920 * 2] = 'A';
}
void panic(char *msg, int line, char *file)
{
cli();
printk("[KERNEL PANIC]");
printk("%s. Error at line %d in file %s.", msg, line, file);
flush_video();
keep_running();
}
