* Copyright (c) 2000,2001 Fabrice Bellard
* Copyright (c) 2002-2010 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * Returns the number of bits that encoding the 8x8 block in block would need.
+ * Return the number of bits that encoding the 8x8 block in block would need.
* @param[in] block_last_index last index in scantable order that refers to a non zero element in block.
*/
static inline int get_block_rate(MpegEncContext * s, DCTELEM block[64], int block_last_index, uint8_t scantable[64]){
/**
- * Restores the ac coefficients in block that have been changed by decide_ac_pred().
+ * Restore the ac coefficients in block that have been changed by decide_ac_pred().
* This function also restores s->block_last_index.
* @param[in,out] block MB coefficients, these will be restored
* @param[in] dir ac prediction direction for each 8x8 block
}
/**
- * Returns the optimal value (0 or 1) for the ac_pred element for the given MB in mpeg4.
+ * Return the optimal value (0 or 1) for the ac_pred element for the given MB in mpeg4.
* This function will also update s->block_last_index and s->ac_val.
* @param[in,out] block MB coefficients, these will be updated if 1 is returned
* @param[in] dir ac prediction direction for each 8x8 block
if (n < 4) {
/* luminance */
- put_bits(&s->pb, DCtab_lum[size][1], DCtab_lum[size][0]);
+ put_bits(&s->pb, ff_mpeg4_DCtab_lum[size][1], ff_mpeg4_DCtab_lum[size][0]);
} else {
/* chrominance */
- put_bits(&s->pb, DCtab_chrom[size][1], DCtab_chrom[size][0]);
+ put_bits(&s->pb, ff_mpeg4_DCtab_chrom[size][1], ff_mpeg4_DCtab_chrom[size][0]);
}
/* encode remaining bits */
mpeg4_encode_dc(dc_pb, intra_dc, n);
if(last_index<1) return;
i = 1;
- rl = &rl_intra;
+ rl = &ff_mpeg4_rl_intra;
bits_tab= uni_mpeg4_intra_rl_bits;
len_tab = uni_mpeg4_intra_rl_len;
} else {
if(last_index<0) return;
i = 0;
- rl = &rl_inter;
+ rl = &ff_h263_rl_inter;
bits_tab= uni_mpeg4_inter_rl_bits;
len_tab = uni_mpeg4_inter_rl_len;
}
if(s->mv_type==MV_TYPE_16X16){
if(s->dquant) cbpc+= 8;
put_bits(&s->pb,
- inter_MCBPC_bits[cbpc],
- inter_MCBPC_code[cbpc]);
+ ff_h263_inter_MCBPC_bits[cbpc],
+ ff_h263_inter_MCBPC_code[cbpc]);
- put_bits(pb2, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
+ put_bits(pb2, ff_h263_cbpy_tab[cbpy][1], ff_h263_cbpy_tab[cbpy][0]);
if(s->dquant)
put_bits(pb2, 2, dquant_code[s->dquant+2]);
}else if(s->mv_type==MV_TYPE_FIELD){
if(s->dquant) cbpc+= 8;
put_bits(&s->pb,
- inter_MCBPC_bits[cbpc],
- inter_MCBPC_code[cbpc]);
+ ff_h263_inter_MCBPC_bits[cbpc],
+ ff_h263_inter_MCBPC_code[cbpc]);
- put_bits(pb2, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
+ put_bits(pb2, ff_h263_cbpy_tab[cbpy][1], ff_h263_cbpy_tab[cbpy][0]);
if(s->dquant)
put_bits(pb2, 2, dquant_code[s->dquant+2]);
}else{
assert(s->mv_type==MV_TYPE_8X8);
put_bits(&s->pb,
- inter_MCBPC_bits[cbpc+16],
- inter_MCBPC_code[cbpc+16]);
- put_bits(pb2, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
+ ff_h263_inter_MCBPC_bits[cbpc+16],
+ ff_h263_inter_MCBPC_code[cbpc+16]);
+ put_bits(pb2, ff_h263_cbpy_tab[cbpy][1], ff_h263_cbpy_tab[cbpy][0]);
if(!s->progressive_sequence){
if(cbp)
if (s->pict_type == FF_I_TYPE) {
if(s->dquant) cbpc+=4;
put_bits(&s->pb,
- intra_MCBPC_bits[cbpc],
- intra_MCBPC_code[cbpc]);
+ ff_h263_intra_MCBPC_bits[cbpc],
+ ff_h263_intra_MCBPC_code[cbpc]);
} else {
if(s->dquant) cbpc+=8;
put_bits(&s->pb, 1, 0); /* mb coded */
put_bits(&s->pb,
- inter_MCBPC_bits[cbpc + 4],
- inter_MCBPC_code[cbpc + 4]);
+ ff_h263_inter_MCBPC_bits[cbpc + 4],
+ ff_h263_inter_MCBPC_code[cbpc + 4]);
}
put_bits(pb2, 1, s->ac_pred);
cbpy = cbp >> 2;
- put_bits(pb2, cbpy_tab[cbpy][1], cbpy_tab[cbpy][0]);
+ put_bits(pb2, ff_h263_cbpy_tab[cbpy][1], ff_h263_cbpy_tab[cbpy][0]);
if(s->dquant)
put_bits(dc_pb, 2, dquant_code[s->dquant+2]);
l= level;
/* luminance */
- uni_code= DCtab_lum[size][0];
- uni_len = DCtab_lum[size][1];
+ uni_code= ff_mpeg4_DCtab_lum[size][0];
+ uni_len = ff_mpeg4_DCtab_lum[size][1];
if (size > 0) {
uni_code<<=size; uni_code|=l;
uni_DCtab_lum_len [level+256]= uni_len;
/* chrominance */
- uni_code= DCtab_chrom[size][0];
- uni_len = DCtab_chrom[size][1];
+ uni_code= ff_mpeg4_DCtab_chrom[size][0];
+ uni_len = ff_mpeg4_DCtab_chrom[size][1];
if (size > 0) {
uni_code<<=size; uni_code|=l;
init_uni_dc_tab();
- init_rl(&rl_intra, ff_mpeg4_static_rl_table_store[0]);
+ init_rl(&ff_mpeg4_rl_intra, ff_mpeg4_static_rl_table_store[0]);
- init_uni_mpeg4_rl_tab(&rl_intra, uni_mpeg4_intra_rl_bits, uni_mpeg4_intra_rl_len);
- init_uni_mpeg4_rl_tab(&rl_inter, uni_mpeg4_inter_rl_bits, uni_mpeg4_inter_rl_len);
+ init_uni_mpeg4_rl_tab(&ff_mpeg4_rl_intra, uni_mpeg4_intra_rl_bits, uni_mpeg4_intra_rl_len);
+ init_uni_mpeg4_rl_tab(&ff_h263_rl_inter, uni_mpeg4_inter_rl_bits, uni_mpeg4_inter_rl_len);
}
s->min_qcoeff= -2048;
put_bits(&s->pb, 1, 0); /* no HEC */
}
-AVCodec mpeg4_encoder = {
+AVCodec ff_mpeg4_encoder = {
"mpeg4",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_MPEG4,
sizeof(MpegEncContext),
encode_init,
MPV_encode_picture,
MPV_encode_end,
.pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
- .capabilities= CODEC_CAP_DELAY,
+ .capabilities= CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS,
.long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
};
projects / ffmpeg / blobdiff