#include "avcodec.h"
#include "dv.h"
+#include "dv_profile_internal.h"
#include "dvdata.h"
#include "get_bits.h"
#include "idctdsp.h"
static const int dv_iweight_bits = 14;
+static const uint16_t dv_iweight_88[64] = {
+ 32768, 16705, 16705, 17734, 17032, 17734, 18205, 18081,
+ 18081, 18205, 18725, 18562, 19195, 18562, 18725, 19266,
+ 19091, 19705, 19705, 19091, 19266, 21407, 19643, 20267,
+ 20228, 20267, 19643, 21407, 22725, 21826, 20853, 20806,
+ 20806, 20853, 21826, 22725, 23170, 23170, 21407, 21400,
+ 21407, 23170, 23170, 24598, 23786, 22018, 22018, 23786,
+ 24598, 25251, 24465, 22654, 24465, 25251, 25972, 25172,
+ 25172, 25972, 26722, 27969, 26722, 29692, 29692, 31521,
+};
+static const uint16_t dv_iweight_248[64] = {
+ 32768, 16384, 16705, 16705, 17734, 17734, 17734, 17734,
+ 18081, 18081, 18725, 18725, 21407, 21407, 19091, 19091,
+ 19195, 19195, 18205, 18205, 18725, 18725, 19705, 19705,
+ 20267, 20267, 21826, 21826, 23170, 23170, 20806, 20806,
+ 20267, 20267, 19266, 19266, 21407, 21407, 20853, 20853,
+ 21400, 21400, 23786, 23786, 24465, 24465, 22018, 22018,
+ 23170, 23170, 22725, 22725, 24598, 24598, 24465, 24465,
+ 25172, 25172, 27969, 27969, 25972, 25972, 29692, 29692
+};
+
+/**
+ * The "inverse" DV100 weights are actually just the spec weights (zig-zagged).
+ */
+static const uint16_t dv_iweight_1080_y[64] = {
+ 128, 16, 16, 17, 17, 17, 18, 18,
+ 18, 18, 18, 18, 19, 18, 18, 19,
+ 19, 19, 19, 19, 19, 42, 38, 40,
+ 40, 40, 38, 42, 44, 43, 41, 41,
+ 41, 41, 43, 44, 45, 45, 42, 42,
+ 42, 45, 45, 48, 46, 43, 43, 46,
+ 48, 49, 48, 44, 48, 49, 101, 98,
+ 98, 101, 104, 109, 104, 116, 116, 123,
+};
+static const uint16_t dv_iweight_1080_c[64] = {
+ 128, 16, 16, 17, 17, 17, 25, 25,
+ 25, 25, 26, 25, 26, 25, 26, 26,
+ 26, 27, 27, 26, 26, 42, 38, 40,
+ 40, 40, 38, 42, 44, 43, 41, 41,
+ 41, 41, 43, 44, 91, 91, 84, 84,
+ 84, 91, 91, 96, 93, 86, 86, 93,
+ 96, 197, 191, 177, 191, 197, 203, 197,
+ 197, 203, 209, 219, 209, 232, 232, 246,
+};
+static const uint16_t dv_iweight_720_y[64] = {
+ 128, 16, 16, 17, 17, 17, 18, 18,
+ 18, 18, 18, 18, 19, 18, 18, 19,
+ 19, 19, 19, 19, 19, 42, 38, 40,
+ 40, 40, 38, 42, 44, 43, 41, 41,
+ 41, 41, 43, 44, 68, 68, 63, 63,
+ 63, 68, 68, 96, 92, 86, 86, 92,
+ 96, 98, 96, 88, 96, 98, 202, 196,
+ 196, 202, 208, 218, 208, 232, 232, 246,
+};
+const uint16_t dv_iweight_720_c[64] = {
+ 128, 24, 24, 26, 26, 26, 36, 36,
+ 36, 36, 36, 36, 38, 36, 36, 38,
+ 38, 38, 38, 38, 38, 84, 76, 80,
+ 80, 80, 76, 84, 88, 86, 82, 82,
+ 82, 82, 86, 88, 182, 182, 168, 168,
+ 168, 182, 182, 192, 186, 192, 172, 186,
+ 192, 394, 382, 354, 382, 394, 406, 394,
+ 394, 406, 418, 438, 418, 464, 464, 492,
+};
+
+static void dv_init_weight_tables(DVVideoContext *ctx, const AVDVProfile *d)
+{
+ int j, i, c, s;
+ uint32_t *factor1 = &ctx->idct_factor[0],
+ *factor2 = &ctx->idct_factor[DV_PROFILE_IS_HD(d) ? 4096 : 2816];
+
+ if (DV_PROFILE_IS_HD(d)) {
+ /* quantization quanta by QNO for DV100 */
+ static const uint8_t dv100_qstep[16] = {
+ 1, /* QNO = 0 and 1 both have no quantization */
+ 1,
+ 2, 3, 4, 5, 6, 7, 8, 16, 18, 20, 22, 24, 28, 52
+ };
+ const uint16_t *iweight1, *iweight2;
+
+ if (d->height == 720) {
+ iweight1 = &dv_iweight_720_y[0];
+ iweight2 = &dv_iweight_720_c[0];
+ } else {
+ iweight1 = &dv_iweight_1080_y[0];
+ iweight2 = &dv_iweight_1080_c[0];
+ }
+ for (c = 0; c < 4; c++) {
+ for (s = 0; s < 16; s++) {
+ for (i = 0; i < 64; i++) {
+ *factor1++ = (dv100_qstep[s] << (c + 9)) * iweight1[i];
+ *factor2++ = (dv100_qstep[s] << (c + 9)) * iweight2[i];
+ }
+ }
+ }
+ } else {
+ static const uint8_t dv_quant_areas[4] = { 6, 21, 43, 64 };
+ const uint16_t *iweight1 = &dv_iweight_88[0];
+ for (j = 0; j < 2; j++, iweight1 = &dv_iweight_248[0]) {
+ for (s = 0; s < 22; s++) {
+ for (i = c = 0; c < 4; c++) {
+ for (; i < dv_quant_areas[c]; i++) {
+ *factor1 = iweight1[i] << (ff_dv_quant_shifts[s][c] + 1);
+ *factor2++ = (*factor1++) << 1;
+ }
+ }
+ }
+ }
+ }
+}
+
static av_cold int dvvideo_decode_init(AVCodecContext *avctx)
{
DVVideoContext *s = avctx->priv_data;
int apt, is16_9, ret;
const AVDVProfile *sys;
- sys = avpriv_dv_frame_profile2(avctx, s->sys, buf, buf_size);
+ sys = ff_dv_frame_profile(avctx, s->sys, buf, buf_size);
if (!sys || buf_size < sys->frame_size) {
av_log(avctx, AV_LOG_ERROR, "could not find dv frame profile\n");
return -1; /* NOTE: we only accept several full frames */
av_log(avctx, AV_LOG_ERROR, "Error initializing the work tables.\n");
return ret;
}
+ dv_init_weight_tables(s, sys);
s->sys = sys;
}
s->frame->key_frame = 1;
s->frame->pict_type = AV_PICTURE_TYPE_I;
avctx->pix_fmt = s->sys->pix_fmt;
- avctx->time_base = s->sys->time_base;
+ avctx->framerate = av_inv_q(s->sys->time_base);
ret = ff_set_dimensions(avctx, s->sys->width, s->sys->height);
if (ret < 0)
if (*vsc_pack == dv_video_control) {
apt = buf[4] & 0x07;
is16_9 = (vsc_pack[2] & 0x07) == 0x02 ||
- (!apt && (vsc_pack[2] & 0x07) == 0x07);
+ (!apt && (vsc_pack[2] & 0x07) == 0x07);
ff_set_sar(avctx, s->sys->sar[is16_9]);
}
repositories / deb_ffmpeg.git / blobdiff