static void
init_freemap (void)
{
static uint8_t first_block[4096];
use_block (&first_block[0]);
unsigned nth = 0;
videoram_printf (" ");
for (const struct e820_entry *mem = e820_start (); mem; mem = e820_next (mem))
{
if (mem->type != E820_MEMORY)
continue;
uint8_t *start, *end;
start = (void *) round_up_pow2 (MAX (mem->base_addr,
(uintptr_t) &_kernel_memory_end),
12);
end = (void *) round_down_pow2 (mem->base_addr + mem->length, 12);
for (uint8_t *i = start; i < end; i += 4096)
{
if (++nth == 200*1024*1024 / 4096)
{
nth = 0;
videoram_printf (".");
}
return_frame (i);
}
}
videoram_printf (" (%'zu MB) ", counter*4096/1024/1024);
}
int ff_yadif_request_frame(AVFilterLink *link)
{
AVFilterContext *ctx = link->src;
YADIFContext *yadif = ctx->priv;
int ret;
if (yadif->frame_pending) {
return_frame(ctx, 1);
return 0;
}
if (yadif->eof)
return AVERROR_EOF;
ret = ff_request_frame(ctx->inputs[0]);
if (ret == AVERROR_EOF && yadif->cur) {
AVFrame *next = av_frame_clone(yadif->next);
if (!next)
return AVERROR(ENOMEM);
next->pts = yadif->next->pts * 2 - yadif->cur->pts;
ff_yadif_filter_frame(ctx->inputs[0], next);
yadif->eof = 1;
} else if (ret < 0) {
return ret;
}
return 0;
}
bool
frame_allocator_return (void *page)
{
ASSERT (((uintptr_t) page & 0x0FFF) == 0);
ASSERT (page != NULL);
return return_frame (page);
}
int ff_yadif_filter_frame(AVFilterLink *link, AVFrame *frame)
{
AVFilterContext *ctx = link->dst;
YADIFContext *yadif = ctx->priv;
av_assert0(frame);
if (yadif->frame_pending)
return_frame(ctx, 1);
if (yadif->prev)
av_frame_free(&yadif->prev);
yadif->prev = yadif->cur;
yadif->cur = yadif->next;
yadif->next = frame;
if (!yadif->cur &&
!(yadif->cur = av_frame_clone(yadif->next)))
return AVERROR(ENOMEM);
if (checkstride(yadif, yadif->next, yadif->cur)) {
av_log(ctx, AV_LOG_VERBOSE, "Reallocating frame due to differing stride\n");
fixstride(link, yadif->next);
}
if (checkstride(yadif, yadif->next, yadif->cur))
fixstride(link, yadif->cur);
if (yadif->prev && checkstride(yadif, yadif->next, yadif->prev))
fixstride(link, yadif->prev);
if (checkstride(yadif, yadif->next, yadif->cur) || (yadif->prev && checkstride(yadif, yadif->next, yadif->prev))) {
av_log(ctx, AV_LOG_ERROR, "Failed to reallocate frame\n");
return -1;
}
if (!yadif->prev)
return 0;
if ((yadif->deint && !yadif->cur->interlaced_frame) ||
ctx->is_disabled ||
(yadif->deint && !yadif->prev->interlaced_frame && yadif->prev->repeat_pict) ||
(yadif->deint && !yadif->next->interlaced_frame && yadif->next->repeat_pict)
) {
yadif->out = av_frame_clone(yadif->cur);
if (!yadif->out)
return AVERROR(ENOMEM);
av_frame_free(&yadif->prev);
if (yadif->out->pts != AV_NOPTS_VALUE)
yadif->out->pts *= 2;
return ff_filter_frame(ctx->outputs[0], yadif->out);
}
yadif->out = ff_get_video_buffer(ctx->outputs[0], link->w, link->h);
if (!yadif->out)
return AVERROR(ENOMEM);
av_frame_copy_props(yadif->out, yadif->cur);
yadif->out->interlaced_frame = 0;
if (yadif->out->pts != AV_NOPTS_VALUE)
yadif->out->pts *= 2;
return return_frame(ctx, 0);
}
