* VC-3 encoder funded by the British Broadcasting Corporation
* 10 bit support added by MirriAd Ltd, Joseph Artsimovich <joseph@mirriad.com>
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#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.
int n, int qscale, int *overflow)
{
const uint8_t *scantable= ctx->intra_scantable.scantable;
- const int *qmat = ctx->q_intra_matrix[qscale];
+ const int *qmat = n<4 ? ctx->q_intra_matrix[qscale] : ctx->q_chroma_intra_matrix[qscale];
int last_non_zero = 0;
int i;
alevel -= offset<<6;
}
for (j = 0; j < 257; j++) {
- if (ctx->cid_table->ac_level[j] == alevel &&
- (!offset || (ctx->cid_table->ac_index_flag[j] && offset)) &&
- (!run || (ctx->cid_table->ac_run_flag [j] && run))) {
+ if (ctx->cid_table->ac_level[j] >> 1 == alevel &&
+ (!offset || (ctx->cid_table->ac_flags[j] & 1) && offset) &&
+ (!run || (ctx->cid_table->ac_flags[j] & 2) && run)) {
assert(!ctx->vlc_codes[index]);
if (alevel) {
ctx->vlc_codes[index] = (ctx->cid_table->ac_codes[j]<<1)|(sign&1);
}
}
+ ctx->m.q_chroma_intra_matrix16 = ctx->qmatrix_c16;
+ ctx->m.q_chroma_intra_matrix = ctx->qmatrix_c;
+ ctx->m.q_intra_matrix16 = ctx->qmatrix_l16;
+ ctx->m.q_intra_matrix = ctx->qmatrix_l;
+
return 0;
fail:
return -1;
avctx->bits_per_raw_sample = ctx->cid_table->bit_depth;
- dsputil_init(&ctx->m.dsp, avctx);
+ ff_dsputil_init(&ctx->m.dsp, avctx);
ff_dct_common_init(&ctx->m);
if (!ctx->m.dct_quantize)
- ctx->m.dct_quantize = dct_quantize_c;
+ ctx->m.dct_quantize = ff_dct_quantize_c;
if (ctx->cid_table->bit_depth == 10) {
ctx->m.dct_quantize = dnxhd_10bit_dct_quantize;
static av_always_inline int dnxhd_switch_matrix(DNXHDEncContext *ctx, int i)
{
- if (i&2) {
- ctx->m.q_intra_matrix16 = ctx->qmatrix_c16;
- ctx->m.q_intra_matrix = ctx->qmatrix_c;
- return 1 + (i&1);
- } else {
- ctx->m.q_intra_matrix16 = ctx->qmatrix_l16;
- ctx->m.q_intra_matrix = ctx->qmatrix_l;
- return 0;
- }
+ const static uint8_t component[8]={0,0,1,2,0,0,1,2};
+ return component[i];
}
static int dnxhd_calc_bits_thread(AVCodecContext *avctx, void *arg, int jobnr, int threadnr)
int n = dnxhd_switch_matrix(ctx, i);
memcpy(block, src_block, 64*sizeof(*block));
- last_index = ctx->m.dct_quantize(&ctx->m, block, i, qscale, &overflow);
+ last_index = ctx->m.dct_quantize(&ctx->m, block, 4&(2*i), qscale, &overflow);
ac_bits += dnxhd_calc_ac_bits(ctx, block, last_index);
diff = block[0] - ctx->m.last_dc[n];
for (i = 0; i < 8; i++) {
DCTELEM *block = ctx->blocks[i];
int overflow, n = dnxhd_switch_matrix(ctx, i);
- int last_index = ctx->m.dct_quantize(&ctx->m, block, i,
- qscale, &overflow);
+ 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 offset, i, ret;
uint8_t *buf;
- if ((ret = ff_alloc_packet(pkt, ctx->cid_table->frame_size)) < 0) {
- av_log(avctx, AV_LOG_ERROR, "output buffer is too small to compress picture\n");
+ if ((ret = ff_alloc_packet2(avctx, pkt, ctx->cid_table->frame_size)) < 0)
return ret;
- }
buf = pkt->data;
dnxhd_load_picture(ctx, frame);
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,
.init = dnxhd_encode_init,
.encode2 = dnxhd_encode_picture,
.close = dnxhd_encode_end,
- .capabilities = CODEC_CAP_SLICE_THREADS,
- .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,
+ .capabilities = CODEC_CAP_SLICE_THREADS,
+ .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,
};
projects / ffmpeg / blobdiff