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Diffstat (limited to 'libavcodec/ituh263enc.c')
-rw-r--r--libavcodec/ituh263enc.c63
1 files changed, 29 insertions, 34 deletions
diff --git a/libavcodec/ituh263enc.c b/libavcodec/ituh263enc.c
index f9986a4ad7..03f4011bfa 100644
--- a/libavcodec/ituh263enc.c
+++ b/libavcodec/ituh263enc.c
@@ -5,20 +5,20 @@
* Copyright (c) 2001 Juan J. Sierralta P
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
- * 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
*/
@@ -90,7 +90,7 @@ static const uint8_t wrong_run[102] = {
av_const int ff_h263_aspect_to_info(AVRational aspect){
int i;
- if(aspect.num==0) aspect= (AVRational){1,1};
+ if(aspect.num==0 || aspect.den==0) aspect= (AVRational){1,1};
for(i=1; i<6; i++){
if(av_cmp_q(ff_h263_pixel_aspect[i], aspect) == 0){
@@ -228,19 +228,11 @@ void ff_h263_encode_picture_header(MpegEncContext * s, int picture_number)
if(s->h263_slice_structured){
put_bits(&s->pb, 1, 1);
- assert(s->mb_x == 0 && s->mb_y == 0);
+ av_assert1(s->mb_x == 0 && s->mb_y == 0);
ff_h263_encode_mba(s);
put_bits(&s->pb, 1, 1);
}
-
- if(s->h263_aic){
- s->y_dc_scale_table=
- s->c_dc_scale_table= ff_aic_dc_scale_table;
- }else{
- s->y_dc_scale_table=
- s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
- }
}
/**
@@ -270,7 +262,7 @@ void ff_h263_encode_gob_header(MpegEncContext * s, int mb_line)
}
/**
- * modify qscale so that encoding is acually possible in h263 (limit difference to -2..2)
+ * modify qscale so that encoding is actually possible in h263 (limit difference to -2..2)
*/
void ff_clean_h263_qscales(MpegEncContext *s){
int i;
@@ -395,7 +387,7 @@ static void h263_encode_block(MpegEncContext * s, int16_t * block, int n)
put_bits(&s->pb, 1, last);
put_bits(&s->pb, 6, run);
- assert(slevel != 0);
+ av_assert2(slevel != 0);
if(level < 128)
put_sbits(&s->pb, 8, slevel);
@@ -416,7 +408,7 @@ static void h263_encode_block(MpegEncContext * s, int16_t * block, int n)
}
/* Encode MV differences on H.263+ with Unrestricted MV mode */
-static void h263p_encode_umotion(MpegEncContext * s, int val)
+static void h263p_encode_umotion(PutBitContext *pb, int val)
{
short sval = 0;
short i = 0;
@@ -426,11 +418,11 @@ static void h263p_encode_umotion(MpegEncContext * s, int val)
int tcode;
if ( val == 0)
- put_bits(&s->pb, 1, 1);
+ put_bits(pb, 1, 1);
else if (val == 1)
- put_bits(&s->pb, 3, 0);
+ put_bits(pb, 3, 0);
else if (val == -1)
- put_bits(&s->pb, 3, 2);
+ put_bits(pb, 3, 2);
else {
sval = ((val < 0) ? (short)(-val):(short)val);
@@ -449,7 +441,7 @@ static void h263p_encode_umotion(MpegEncContext * s, int val)
i--;
}
code = ((code << 1) | (val < 0)) << 1;
- put_bits(&s->pb, (2*n_bits)+1, code);
+ put_bits(pb, (2*n_bits)+1, code);
}
}
@@ -506,8 +498,8 @@ void ff_h263_encode_mb(MpegEncContext * s,
motion_y - pred_y, 1);
}
else {
- h263p_encode_umotion(s, motion_x - pred_x);
- h263p_encode_umotion(s, motion_y - pred_y);
+ h263p_encode_umotion(&s->pb, motion_x - pred_x);
+ h263p_encode_umotion(&s->pb, motion_y - pred_y);
if (((motion_x - pred_x) == 1) && ((motion_y - pred_y) == 1))
/* To prevent Start Code emulation */
put_bits(&s->pb,1,1);
@@ -535,8 +527,8 @@ void ff_h263_encode_mb(MpegEncContext * s,
motion_y - pred_y, 1);
}
else {
- h263p_encode_umotion(s, motion_x - pred_x);
- h263p_encode_umotion(s, motion_y - pred_y);
+ h263p_encode_umotion(&s->pb, motion_x - pred_x);
+ h263p_encode_umotion(&s->pb, motion_y - pred_y);
if (((motion_x - pred_x) == 1) && ((motion_y - pred_y) == 1))
/* To prevent Start Code emulation */
put_bits(&s->pb,1,1);
@@ -548,7 +540,7 @@ void ff_h263_encode_mb(MpegEncContext * s,
s->mv_bits+= get_bits_diff(s);
}
} else {
- assert(s->mb_intra);
+ av_assert2(s->mb_intra);
cbp = 0;
if (s->h263_aic) {
@@ -652,14 +644,14 @@ void ff_h263_encode_mb(MpegEncContext * s,
}
}
-void ff_h263_encode_motion(MpegEncContext * s, int val, int f_code)
+void ff_h263_encode_motion(PutBitContext *pb, int val, int f_code)
{
int range, bit_size, sign, code, bits;
if (val == 0) {
/* zero vector */
code = 0;
- put_bits(&s->pb, ff_mvtab[code][1], ff_mvtab[code][0]);
+ put_bits(pb, ff_mvtab[code][1], ff_mvtab[code][0]);
} else {
bit_size = f_code - 1;
range = 1 << bit_size;
@@ -673,9 +665,9 @@ void ff_h263_encode_motion(MpegEncContext * s, int val, int f_code)
code = (val >> bit_size) + 1;
bits = val & (range - 1);
- put_bits(&s->pb, ff_mvtab[code][1] + 1, (ff_mvtab[code][0] << 1) | sign);
+ put_bits(pb, ff_mvtab[code][1] + 1, (ff_mvtab[code][0] << 1) | sign);
if (bit_size > 0) {
- put_bits(&s->pb, bit_size, bits);
+ put_bits(pb, bit_size, bits);
}
}
}
@@ -727,8 +719,8 @@ static av_cold void init_uni_h263_rl_tab(RLTable *rl, uint32_t *bits_tab,
{
int slevel, run, last;
- assert(MAX_LEVEL >= 64);
- assert(MAX_RUN >= 63);
+ av_assert0(MAX_LEVEL >= 64);
+ av_assert0(MAX_RUN >= 63);
for(slevel=-64; slevel<64; slevel++){
if(slevel==0) continue;
@@ -817,12 +809,15 @@ av_cold void ff_h263_encode_init(MpegEncContext *s)
s->min_qcoeff= -127;
s->max_qcoeff= 127;
}
- s->y_dc_scale_table=
- s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
break;
default: //nothing needed - default table already set in mpegvideo.c
s->min_qcoeff= -127;
s->max_qcoeff= 127;
+ }
+ if(s->h263_aic){
+ s->y_dc_scale_table=
+ s->c_dc_scale_table= ff_aic_dc_scale_table;
+ }else{
s->y_dc_scale_table=
s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-10 21:23:45 +0300