#include "mpegvideo.h"
#include "mpegvideo_common.h"
#include "dnxhdenc.h"
+#include "internal.h"
#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
#define DNX10BIT_QMAT_SHIFT 18 // The largest value that will not lead to overflow for 10bit samples.
for (i = 0; i < 8; i++) {
DCTELEM *block = ctx->blocks[i];
- int last_index, overflow;
- int n = dnxhd_switch_matrix(ctx, i);
- last_index = ctx->m.dct_quantize(&ctx->m, block, 4&(2*i), qscale, &overflow);
+ int overflow, n = dnxhd_switch_matrix(ctx, i);
+ int last_index = ctx->m.dct_quantize(&ctx->m, block, 4&(2*i), qscale, &overflow);
//START_TIMER;
dnxhd_encode_block(ctx, block, last_index, n);
//STOP_TIMER("encode_block");
int qscale = 1;
int mb = y*ctx->m.mb_width+x;
for (q = 1; q < avctx->qmax; q++) {
- unsigned score = ctx->mb_rc[q][mb].bits*lambda+(ctx->mb_rc[q][mb].ssd<<LAMBDA_FRAC_BITS);
+ unsigned score = ctx->mb_rc[q][mb].bits*lambda+
+ ((unsigned)ctx->mb_rc[q][mb].ssd<<LAMBDA_FRAC_BITS);
if (score < min) {
min = score;
qscale = q;
lambda = (lambda+last_higher)>>1;
else
lambda -= down_step;
- down_step *= 5; // XXX tune ?
+ down_step = FFMIN((int64_t)down_step*5, INT_MAX);
up_step = 1<<LAMBDA_FRAC_BITS;
lambda = FFMAX(1, lambda);
if (lambda == last_lower)
return 0;
}
+static const AVCodecDefault dnxhd_defaults[] = {
+ { "qmax", "1024" }, /* Maximum quantization scale factor allowed for VC-3 */
+ { NULL },
+};
+
AVCodec ff_dnxhd_encoder = {
.name = "dnxhd",
.type = AVMEDIA_TYPE_VIDEO,
.pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV422P, PIX_FMT_YUV422P10, PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("VC3/DNxHD"),
.priv_class = &class,
+ .defaults = dnxhd_defaults,
};