/*
* MPEG1/2 encoder
- * Copyright (c) 2000,2001 Fabrice Bellard.
+ * Copyright (c) 2000,2001 Fabrice Bellard
* Copyright (c) 2002-2004 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
*/
/**
- * @file mpeg12enc.c
+ * @file
* MPEG1/2 encoder
*/
#include "avcodec.h"
#include "dsputil.h"
+#include "mathops.h"
#include "mpegvideo.h"
#include "mpeg12.h"
#include "mpeg12data.h"
#include "bytestream.h"
+#include "libavutil/log.h"
+#include "libavutil/opt.h"
static const uint8_t inv_non_linear_qscale[13] = {
0, 2, 4, 6, 8,
for(i=0; i<128; i++){
int level= i-64;
int run;
+ if (!level)
+ continue;
for(run=0; run<64; run++){
- int len, bits, code;
+ int len, code;
int alevel= FFABS(level);
- int sign= (level>>31)&1;
if (alevel > rl->max_level[0][run])
code= 111; /*rl->n*/
code= rl->index_run[0][run] + alevel - 1;
if (code < 111 /* rl->n */) {
- /* store the vlc & sign at once */
+ /* length of vlc and sign */
len= rl->table_vlc[code][1]+1;
- bits= (rl->table_vlc[code][0]<<1) + sign;
} else {
len= rl->table_vlc[111/*rl->n*/][1]+6;
- bits= rl->table_vlc[111/*rl->n*/][0]<<6;
- bits|= run;
if (alevel < 128) {
- bits<<=8; len+=8;
- bits|= level & 0xff;
+ len += 8;
} else {
- bits<<=16; len+=16;
- bits|= level & 0xff;
- if (level < 0) {
- bits|= 0x8001 + level + 255;
- } else {
- bits|= level & 0xffff;
- }
+ len += 16;
}
}
int64_t d;
for(i=1;i<14;i++) {
- int64_t n0= 1001LL/ff_frame_rate_tab[i].den*ff_frame_rate_tab[i].num*s->avctx->time_base.num;
+ int64_t n0= 1001LL/avpriv_frame_rate_tab[i].den*avpriv_frame_rate_tab[i].num*s->avctx->time_base.num;
int64_t n1= 1001LL*s->avctx->time_base.den;
- if(s->avctx->strict_std_compliance > FF_COMPLIANCE_INOFFICIAL && i>=9) break;
+ if(s->avctx->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL && i>=9) break;
d = FFABS(n0 - n1);
if(d < dmin){
{
MpegEncContext *s = avctx->priv_data;
- if(MPV_encode_init(avctx) < 0)
+ if(ff_MPV_encode_init(avctx) < 0)
return -1;
if(find_frame_rate_index(s) < 0){
}
}
- if((avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE) && s->frame_rate_index != 4){
+ if (s->drop_frame_timecode && s->frame_rate_index != 4) {
av_log(avctx, AV_LOG_ERROR, "Drop frame time code only allowed with 1001/30000 fps\n");
return -1;
}
static void put_header(MpegEncContext *s, int header)
{
- align_put_bits(&s->pb);
+ avpriv_align_put_bits(&s->pb);
put_bits(&s->pb, 16, header>>16);
- put_bits(&s->pb, 16, header&0xFFFF);
+ put_sbits(&s->pb, 16, header);
}
/* put sequence header if needed */
if(aspect_ratio==0.0) aspect_ratio= 1.0; //pixel aspect 1:1 (VGA)
- if (s->current_picture.key_frame) {
- AVRational framerate= ff_frame_rate_tab[s->frame_rate_index];
+ if (s->current_picture.f.key_frame) {
+ AVRational framerate= avpriv_frame_rate_tab[s->frame_rate_index];
/* mpeg1 header repeated every gop */
put_header(s, SEQ_START_CODE);
- put_bits(&s->pb, 12, s->width & 0xFFF);
- put_bits(&s->pb, 12, s->height & 0xFFF);
+ put_sbits(&s->pb, 12, s->width );
+ put_sbits(&s->pb, 12, s->height);
for(i=1; i<15; i++){
float error= aspect_ratio;
- if(s->codec_id == CODEC_ID_MPEG1VIDEO || i <=1)
+ if(s->codec_id == AV_CODEC_ID_MPEG1VIDEO || i <=1)
error-= 1.0/ff_mpeg1_aspect[i];
else
error-= av_q2d(ff_mpeg2_aspect[i])*s->height/s->width;
if(s->avctx->rc_max_rate){
v = (s->avctx->rc_max_rate + 399) / 400;
- if (v > 0x3ffff && s->codec_id == CODEC_ID_MPEG1VIDEO)
+ if (v > 0x3ffff && s->codec_id == AV_CODEC_ID_MPEG1VIDEO)
v = 0x3ffff;
}else{
v= 0x3FFFF;
vbv_buffer_size = (( 20 * s->bit_rate) / (1151929 / 2)) * 8 * 1024;
vbv_buffer_size= (vbv_buffer_size + 16383) / 16384;
- put_bits(&s->pb, 18, v & 0x3FFFF);
+ put_sbits(&s->pb, 18, v);
put_bits(&s->pb, 1, 1); /* marker */
- put_bits(&s->pb, 10, vbv_buffer_size & 0x3FF);
+ put_sbits(&s->pb, 10, vbv_buffer_size);
constraint_parameter_flag=
s->width <= 768 && s->height <= 576 &&
s->avctx->me_range && s->avctx->me_range < 128 &&
vbv_buffer_size <= 20 &&
v <= 1856000/400 &&
- s->codec_id == CODEC_ID_MPEG1VIDEO;
+ s->codec_id == AV_CODEC_ID_MPEG1VIDEO;
put_bits(&s->pb, 1, constraint_parameter_flag);
ff_write_quant_matrix(&s->pb, s->avctx->intra_matrix);
ff_write_quant_matrix(&s->pb, s->avctx->inter_matrix);
- if(s->codec_id == CODEC_ID_MPEG2VIDEO){
+ if(s->codec_id == AV_CODEC_ID_MPEG2VIDEO){
put_header(s, EXT_START_CODE);
put_bits(&s->pb, 4, 1); //seq ext
}
put_header(s, GOP_START_CODE);
- put_bits(&s->pb, 1, !!(s->avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE)); /* drop frame flag */
+ put_bits(&s->pb, 1, s->drop_frame_timecode); /* drop frame flag */
/* time code : we must convert from the real frame rate to a
fake mpeg frame rate in case of low frame rate */
fps = (framerate.num + framerate.den/2)/ framerate.den;
- time_code = s->current_picture_ptr->coded_picture_number + s->avctx->timecode_frame_start;
+ time_code = s->current_picture_ptr->f.coded_picture_number + s->avctx->timecode_frame_start;
- s->gop_picture_number = s->current_picture_ptr->coded_picture_number;
- if (s->avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE) {
+ s->gop_picture_number = s->current_picture_ptr->f.coded_picture_number;
+ if (s->drop_frame_timecode) {
/* only works for NTSC 29.97 */
int d = time_code / 17982;
int m = time_code % 17982;
}
void ff_mpeg1_encode_slice_header(MpegEncContext *s){
- put_header(s, SLICE_MIN_START_CODE + s->mb_y);
+ if (s->height > 2800) {
+ put_header(s, SLICE_MIN_START_CODE + (s->mb_y & 127));
+ put_bits(&s->pb, 3, s->mb_y >> 7); /* slice_vertical_position_extension */
+ } else {
+ put_header(s, SLICE_MIN_START_CODE + s->mb_y);
+ }
put_qscale(s);
put_bits(&s->pb, 1, 0); /* slice extra information */
}
-void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
+void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
{
mpeg1_encode_sequence_header(s);
put_bits(&s->pb, 16, 0xFFFF); /* vbv_delay */
// RAL: Forward f_code also needed for B frames
- if (s->pict_type == FF_P_TYPE || s->pict_type == FF_B_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_P || s->pict_type == AV_PICTURE_TYPE_B) {
put_bits(&s->pb, 1, 0); /* half pel coordinates */
- if(s->codec_id == CODEC_ID_MPEG1VIDEO)
+ if(s->codec_id == AV_CODEC_ID_MPEG1VIDEO)
put_bits(&s->pb, 3, s->f_code); /* forward_f_code */
else
put_bits(&s->pb, 3, 7); /* forward_f_code */
}
// RAL: Backward f_code necessary for B frames
- if (s->pict_type == FF_B_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_B) {
put_bits(&s->pb, 1, 0); /* half pel coordinates */
- if(s->codec_id == CODEC_ID_MPEG1VIDEO)
+ if(s->codec_id == AV_CODEC_ID_MPEG1VIDEO)
put_bits(&s->pb, 3, s->b_code); /* backward_f_code */
else
put_bits(&s->pb, 3, 7); /* backward_f_code */
put_bits(&s->pb, 1, 0); /* extra bit picture */
s->frame_pred_frame_dct = 1;
- if(s->codec_id == CODEC_ID_MPEG2VIDEO){
+ if(s->codec_id == AV_CODEC_ID_MPEG2VIDEO){
put_header(s, EXT_START_CODE);
put_bits(&s->pb, 4, 8); //pic ext
- if (s->pict_type == FF_P_TYPE || s->pict_type == FF_B_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_P || s->pict_type == AV_PICTURE_TYPE_B) {
put_bits(&s->pb, 4, s->f_code);
put_bits(&s->pb, 4, s->f_code);
}else{
put_bits(&s->pb, 8, 255);
}
- if (s->pict_type == FF_B_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_B) {
put_bits(&s->pb, 4, s->b_code);
put_bits(&s->pb, 4, s->b_code);
}else{
if (s->progressive_sequence) {
put_bits(&s->pb, 1, 0); /* no repeat */
} else {
- put_bits(&s->pb, 1, s->current_picture_ptr->top_field_first);
+ put_bits(&s->pb, 1, s->current_picture_ptr->f.top_field_first);
}
/* XXX: optimize the generation of this flag with entropy
measures */
put_bits(&s->pb, 1, s->progressive_frame);
put_bits(&s->pb, 1, 0); //composite_display_flag
}
- if(s->flags & CODEC_FLAG_SVCD_SCAN_OFFSET){
+ if (s->scan_offset) {
int i;
put_header(s, USER_START_CODE);
}
if (cbp == 0 && !first_mb && s->mv_type == MV_TYPE_16X16 &&
- (mb_x != s->mb_width - 1 || (mb_y != s->mb_height - 1 && s->codec_id == CODEC_ID_MPEG1VIDEO)) &&
- ((s->pict_type == FF_P_TYPE && (motion_x | motion_y) == 0) ||
- (s->pict_type == FF_B_TYPE && s->mv_dir == s->last_mv_dir && (((s->mv_dir & MV_DIR_FORWARD) ? ((s->mv[0][0][0] - s->last_mv[0][0][0])|(s->mv[0][0][1] - s->last_mv[0][0][1])) : 0) |
+ (mb_x != s->mb_width - 1 || (mb_y != s->mb_height - 1 && s->codec_id == AV_CODEC_ID_MPEG1VIDEO)) &&
+ ((s->pict_type == AV_PICTURE_TYPE_P && (motion_x | motion_y) == 0) ||
+ (s->pict_type == AV_PICTURE_TYPE_B && s->mv_dir == s->last_mv_dir && (((s->mv_dir & MV_DIR_FORWARD) ? ((s->mv[0][0][0] - s->last_mv[0][0][0])|(s->mv[0][0][1] - s->last_mv[0][0][1])) : 0) |
((s->mv_dir & MV_DIR_BACKWARD) ? ((s->mv[1][0][0] - s->last_mv[1][0][0])|(s->mv[1][0][1] - s->last_mv[1][0][1])) : 0)) == 0))) {
s->mb_skip_run++;
s->qscale -= s->dquant;
s->skip_count++;
s->misc_bits++;
s->last_bits++;
- if(s->pict_type == FF_P_TYPE){
+ if(s->pict_type == AV_PICTURE_TYPE_P){
s->last_mv[0][1][0]= s->last_mv[0][0][0]=
s->last_mv[0][1][1]= s->last_mv[0][0][1]= 0;
}
encode_mb_skip_run(s, s->mb_skip_run);
}
- if (s->pict_type == FF_I_TYPE) {
+ if (s->pict_type == AV_PICTURE_TYPE_I) {
if(s->dquant && cbp){
put_mb_modes(s, 2, 1, 0, 0); /* macroblock_type : macroblock_quant = 1 */
put_qscale(s);
s->misc_bits+= get_bits_diff(s);
s->i_count++;
memset(s->last_mv, 0, sizeof(s->last_mv));
- } else if (s->pict_type == FF_P_TYPE) {
+ } else if (s->pict_type == AV_PICTURE_TYPE_P) {
if(s->mv_type == MV_TYPE_16X16){
if (cbp != 0) {
if ((motion_x|motion_y) == 0) {
put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp][1], ff_mpeg12_mbPatTable[cbp][0]);
} else {
put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp>>2][1], ff_mpeg12_mbPatTable[cbp>>2][0]);
- put_bits(&s->pb, 2, cbp & 3);
+ put_sbits(&s->pb, 2, cbp);
}
}
s->f_count++;
put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp][1], ff_mpeg12_mbPatTable[cbp][0]);
} else {
put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp>>2][1], ff_mpeg12_mbPatTable[cbp>>2][0]);
- put_bits(&s->pb, 2, cbp & 3);
+ put_sbits(&s->pb, 2, cbp);
}
}
}
}
}
-void mpeg1_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
+void ff_mpeg1_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
{
if (s->chroma_format == CHROMA_420) mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 6);
else mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 8);
// RAL: Parameter added: f_or_b_code
static void mpeg1_encode_motion(MpegEncContext *s, int val, int f_or_b_code)
{
- int code, bit_size, l, bits, range, sign;
-
if (val == 0) {
/* zero vector */
- code = 0;
put_bits(&s->pb,
ff_mpeg12_mbMotionVectorTable[0][1],
ff_mpeg12_mbMotionVectorTable[0][0]);
} else {
- bit_size = f_or_b_code - 1;
- range = 1 << bit_size;
+ int code, sign, bits;
+ int bit_size = f_or_b_code - 1;
+ int range = 1 << bit_size;
/* modulo encoding */
- l= INT_BIT - 5 - bit_size;
- val= (val<<l)>>l;
+ val = sign_extend(val, 5 + bit_size);
if (val >= 0) {
val--;
int i;
done=1;
- init_rl(&ff_rl_mpeg1, ff_mpeg12_static_rl_table_store[0]);
- init_rl(&ff_rl_mpeg2, ff_mpeg12_static_rl_table_store[1]);
+ ff_init_rl(&ff_rl_mpeg1, ff_mpeg12_static_rl_table_store[0]);
+ ff_init_rl(&ff_rl_mpeg2, ff_mpeg12_static_rl_table_store[1]);
for(i=0; i<64; i++)
{
if(mv==0) len= ff_mpeg12_mbMotionVectorTable[0][1];
else{
- int val, bit_size, range, code;
+ int val, bit_size, code;
bit_size = f_code - 1;
- range = 1 << bit_size;
val=mv;
if (val < 0)
}
s->me.mv_penalty= mv_penalty;
s->fcode_tab= fcode_tab;
- if(s->codec_id == CODEC_ID_MPEG1VIDEO){
+ if(s->codec_id == AV_CODEC_ID_MPEG1VIDEO){
s->min_qcoeff=-255;
s->max_qcoeff= 255;
}else{
j = s->intra_scantable.permutated[i];
level = block[j];
next_coef:
-#if 0
- if (level != 0)
- dprintf(s->avctx, "level[%d]=%d\n", i, level);
-#endif
/* encode using VLC */
if (level != 0) {
run = i - last_non_zero - 1;
alevel= level;
- MASK_ABS(sign, alevel)
+ MASK_ABS(sign, alevel);
sign&=1;
if (alevel <= mpeg1_max_level[0][run]){
put_bits(&s->pb, table_vlc[111][1], table_vlc[111][0]);
/* escape: only clip in this case */
put_bits(&s->pb, 6, run);
- if(s->codec_id == CODEC_ID_MPEG1VIDEO){
+ if(s->codec_id == AV_CODEC_ID_MPEG1VIDEO){
if (alevel < 128) {
- put_bits(&s->pb, 8, level & 0xff);
+ put_sbits(&s->pb, 8, level);
} else {
if (level < 0) {
put_bits(&s->pb, 16, 0x8001 + level + 255);
} else {
- put_bits(&s->pb, 16, level & 0xffff);
+ put_sbits(&s->pb, 16, level);
}
}
}else{
- put_bits(&s->pb, 12, level & 0xfff);
+ put_sbits(&s->pb, 12, level);
}
}
last_non_zero = i;
put_bits(&s->pb, table_vlc[112][1], table_vlc[112][0]);
}
-AVCodec mpeg1video_encoder = {
- "mpeg1video",
- CODEC_TYPE_VIDEO,
- CODEC_ID_MPEG1VIDEO,
- sizeof(MpegEncContext),
- encode_init,
- MPV_encode_picture,
- MPV_encode_end,
- .supported_framerates= ff_frame_rate_tab+1,
- .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
- .capabilities= CODEC_CAP_DELAY,
- .long_name= NULL_IF_CONFIG_SMALL("MPEG-1 video"),
+#define OFFSET(x) offsetof(MpegEncContext, x)
+#define VE AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
+#define COMMON_OPTS\
+ { "intra_vlc", "Use MPEG-2 intra VLC table.", OFFSET(intra_vlc_format), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },\
+ { "drop_frame_timecode", "Timecode is in drop frame format.", OFFSET(drop_frame_timecode), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE}, \
+ { "scan_offset", "Reserve space for SVCD scan offset user data.", OFFSET(scan_offset), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+
+static const AVOption mpeg1_options[] = {
+ COMMON_OPTS
+ FF_MPV_COMMON_OPTS
+ { NULL },
+};
+
+static const AVOption mpeg2_options[] = {
+ COMMON_OPTS
+ { "non_linear_quant", "Use nonlinear quantizer.", OFFSET(q_scale_type), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ { "alternate_scan", "Enable alternate scantable.", OFFSET(alternate_scan), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
+ FF_MPV_COMMON_OPTS
+ { NULL },
+};
+
+#define mpeg12_class(x)\
+static const AVClass mpeg## x ##_class = {\
+ .class_name = "mpeg" #x "video encoder",\
+ .item_name = av_default_item_name,\
+ .option = mpeg## x ##_options,\
+ .version = LIBAVUTIL_VERSION_INT,\
+};
+
+mpeg12_class(1)
+mpeg12_class(2)
+
+AVCodec ff_mpeg1video_encoder = {
+ .name = "mpeg1video",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_MPEG1VIDEO,
+ .priv_data_size = sizeof(MpegEncContext),
+ .init = encode_init,
+ .encode2 = ff_MPV_encode_picture,
+ .close = ff_MPV_encode_end,
+ .supported_framerates = avpriv_frame_rate_tab+1,
+ .pix_fmts = (const enum PixelFormat[]){ PIX_FMT_YUV420P,
+ PIX_FMT_NONE },
+ .capabilities = CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS,
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-1 video"),
+ .priv_class = &mpeg1_class,
};
-AVCodec mpeg2video_encoder = {
- "mpeg2video",
- CODEC_TYPE_VIDEO,
- CODEC_ID_MPEG2VIDEO,
- sizeof(MpegEncContext),
- encode_init,
- MPV_encode_picture,
- MPV_encode_end,
- .supported_framerates= ff_frame_rate_tab+1,
- .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE},
- .capabilities= CODEC_CAP_DELAY,
- .long_name= NULL_IF_CONFIG_SMALL("MPEG-2 video"),
+AVCodec ff_mpeg2video_encoder = {
+ .name = "mpeg2video",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_MPEG2VIDEO,
+ .priv_data_size = sizeof(MpegEncContext),
+ .init = encode_init,
+ .encode2 = ff_MPV_encode_picture,
+ .close = ff_MPV_encode_end,
+ .supported_framerates = avpriv_frame_rate_tab + 1,
+ .pix_fmts = (const enum PixelFormat[]){
+ PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE
+ },
+ .capabilities = CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS,
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 video"),
+ .priv_class = &mpeg2_class,
};
projects / ffmpeg / blobdiff