return 0;
}
+static int minimum_frame_bits(VC2EncContext *s)
+{
+ int slice_x, slice_y, bits = 0;
+ s->size_scaler = 64;
+ for (slice_y = 0; slice_y < s->num_y; slice_y++) {
+ for (slice_x = 0; slice_x < s->num_x; slice_x++) {
+ bits += count_hq_slice(s, NULL, NULL, slice_x, slice_y, s->q_ceil);
+ }
+ }
+ return bits;
+}
static av_cold int vc2_encode_init(AVCodecContext *avctx)
{
Plane *p;
SubBand *b;
int i, j, level, o, shift;
+ int64_t bits_per_frame, min_bits_per_frame;
VC2EncContext *s = avctx->priv_data;
s->picture_number = 0;
}
}
+ bits_per_frame = av_rescale(avctx->bit_rate, avctx->time_base.num,
+ avctx->time_base.den);
+ min_bits_per_frame = minimum_frame_bits(s) + 8*sizeof(LIBAVCODEC_IDENT) + 8*40 + 8*20000;
+ if (bits_per_frame < min_bits_per_frame) {
+ avctx->bit_rate = av_rescale(min_bits_per_frame, avctx->time_base.den,
+ avctx->time_base.num);
+ av_log(avctx, AV_LOG_WARNING,
+ "Bitrate too low, clipping to minimum = %.2lf Mbps!\n",
+ (double)avctx->bit_rate/1000000.0f);
+ }
+
return 0;
alloc_fail: