/*
* 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.
*/
/**
- * @file mpeg12enc.c
+ * @file libavcodec/mpeg12enc.c
* MPEG1/2 encoder
*/
return 0;
}
-static int encode_init(AVCodecContext *avctx)
+static av_cold int encode_init(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
{
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 */
/* mpeg1 header repeated every gop */
put_header(s, SEQ_START_CODE);
- put_bits(&s->pb, 12, s->width);
- put_bits(&s->pb, 12, s->height);
+ 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)
- error-= 1.0/mpeg1_aspect[i];
+ error-= 1.0/ff_mpeg1_aspect[i];
else
- error-= av_q2d(mpeg2_aspect[i])*s->height/s->width;
+ error-= av_q2d(ff_mpeg2_aspect[i])*s->height/s->width;
error= FFABS(error);
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 &&
put_bits(&s->pb, 1, s->progressive_sequence);
put_bits(&s->pb, 2, s->chroma_format);
- put_bits(&s->pb, 2, 0); //horizontal size ext
- put_bits(&s->pb, 2, 0); //vertical size ext
+ put_bits(&s->pb, 2, s->width >>12);
+ put_bits(&s->pb, 2, s->height>>12);
put_bits(&s->pb, 12, v>>18); //bitrate ext
put_bits(&s->pb, 1, 1); //marker
put_bits(&s->pb, 8, vbv_buffer_size >>10); //vbv buffer ext
put_bits(&s->pb, 11, 0x008);
run -= 33;
}
- put_bits(&s->pb, mbAddrIncrTable[run][1],
- mbAddrIncrTable[run][0]);
+ put_bits(&s->pb, ff_mpeg12_mbAddrIncrTable[run][1],
+ ff_mpeg12_mbAddrIncrTable[run][0]);
}
static av_always_inline void put_qscale(MpegEncContext *s)
put_bits(&s->pb, 16, 0xFFFF); /* vbv_delay */
// RAL: Forward f_code also needed for B frames
- if (s->pict_type == P_TYPE || s->pict_type == B_TYPE) {
+ if (s->pict_type == FF_P_TYPE || s->pict_type == FF_B_TYPE) {
put_bits(&s->pb, 1, 0); /* half pel coordinates */
if(s->codec_id == CODEC_ID_MPEG1VIDEO)
put_bits(&s->pb, 3, s->f_code); /* forward_f_code */
}
// RAL: Backward f_code necessary for B frames
- if (s->pict_type == B_TYPE) {
+ if (s->pict_type == FF_B_TYPE) {
put_bits(&s->pb, 1, 0); /* half pel coordinates */
if(s->codec_id == CODEC_ID_MPEG1VIDEO)
put_bits(&s->pb, 3, s->b_code); /* backward_f_code */
if(s->codec_id == CODEC_ID_MPEG2VIDEO){
put_header(s, EXT_START_CODE);
put_bits(&s->pb, 4, 8); //pic ext
- if (s->pict_type == P_TYPE || s->pict_type == B_TYPE) {
+ if (s->pict_type == FF_P_TYPE || s->pict_type == FF_B_TYPE) {
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 == B_TYPE) {
+ if (s->pict_type == FF_B_TYPE) {
put_bits(&s->pb, 4, s->b_code);
put_bits(&s->pb, 4, s->b_code);
}else{
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 == P_TYPE && (motion_x | motion_y) == 0) ||
- (s->pict_type == 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) |
+ ((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) |
((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 == P_TYPE){
+ if(s->pict_type == FF_P_TYPE){
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 == I_TYPE) {
+ if (s->pict_type == FF_I_TYPE) {
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 == P_TYPE) {
+ } else if (s->pict_type == FF_P_TYPE) {
if(s->mv_type == MV_TYPE_16X16){
if (cbp != 0) {
if ((motion_x|motion_y) == 0) {
}
if(cbp) {
if (s->chroma_y_shift) {
- put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]);
+ put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp][1], ff_mpeg12_mbPatTable[cbp][0]);
} else {
- put_bits(&s->pb, mbPatTable[cbp>>2][1], mbPatTable[cbp>>2][0]);
- put_bits(&s->pb, 2, cbp & 3);
+ put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp>>2][1], ff_mpeg12_mbPatTable[cbp>>2][0]);
+ put_sbits(&s->pb, 2, cbp);
}
}
s->f_count++;
} else{
- static const int mb_type_len[4]={0,3,4,2}; //bak,for,bi
-
if(s->mv_type == MV_TYPE_16X16){
if (cbp){ // With coded bloc pattern
if (s->dquant) {
if(s->mv_dir == MV_DIR_FORWARD)
put_mb_modes(s, 6, 3, 1, 0);
else
- put_mb_modes(s, mb_type_len[s->mv_dir]+3, 2, 1, 0);
+ put_mb_modes(s, 8-s->mv_dir, 2, 1, 0);
put_qscale(s);
} else {
- put_mb_modes(s, mb_type_len[s->mv_dir], 3, 1, 0);
+ put_mb_modes(s, 5-s->mv_dir, 3, 1, 0);
}
}else{ // No coded bloc pattern
- put_bits(&s->pb, mb_type_len[s->mv_dir], 2);
+ put_bits(&s->pb, 5-s->mv_dir, 2);
if (!s->frame_pred_frame_dct)
put_bits(&s->pb, 2, 2); /* motion_type: frame */
s->qscale -= s->dquant;
if(s->mv_dir == MV_DIR_FORWARD)
put_mb_modes(s, 6, 3, 1, 1);
else
- put_mb_modes(s, mb_type_len[s->mv_dir]+3, 2, 1, 1);
+ put_mb_modes(s, 8-s->mv_dir, 2, 1, 1);
put_qscale(s);
} else {
- put_mb_modes(s, mb_type_len[s->mv_dir], 3, 1, 1);
+ put_mb_modes(s, 5-s->mv_dir, 3, 1, 1);
}
}else{ // No coded bloc pattern
- put_bits(&s->pb, mb_type_len[s->mv_dir], 2);
+ put_bits(&s->pb, 5-s->mv_dir, 2);
put_bits(&s->pb, 2, 1); /* motion_type: field */
s->qscale -= s->dquant;
}
s->mv_bits += get_bits_diff(s);
if(cbp) {
if (s->chroma_y_shift) {
- put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]);
+ put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp][1], ff_mpeg12_mbPatTable[cbp][0]);
} else {
- put_bits(&s->pb, mbPatTable[cbp>>2][1], mbPatTable[cbp>>2][0]);
- put_bits(&s->pb, 2, cbp & 3);
+ put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp>>2][1], ff_mpeg12_mbPatTable[cbp>>2][0]);
+ put_sbits(&s->pb, 2, cbp);
}
}
}
// 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,
- mbMotionVectorTable[0][1],
- mbMotionVectorTable[0][0]);
+ 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;
+ int l= INT_BIT - 5 - bit_size;
val= (val<<l)>>l;
if (val >= 0) {
assert(code > 0 && code <= 16);
put_bits(&s->pb,
- mbMotionVectorTable[code][1],
- mbMotionVectorTable[code][0]);
+ ff_mpeg12_mbMotionVectorTable[code][1],
+ ff_mpeg12_mbMotionVectorTable[code][0]);
put_bits(&s->pb, 1, sign);
if (bit_size > 0) {
{
static int done=0;
- common_init(s);
+ ff_mpeg12_common_init(s);
if(!done){
int f_code;
int i;
done=1;
- init_rl(&rl_mpeg1, static_rl_table_store[0]);
- init_rl(&rl_mpeg2, static_rl_table_store[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]);
for(i=0; i<64; i++)
{
- mpeg1_max_level[0][i]= rl_mpeg1.max_level[0][i];
- mpeg1_index_run[0][i]= rl_mpeg1.index_run[0][i];
+ mpeg1_max_level[0][i]= ff_rl_mpeg1.max_level[0][i];
+ mpeg1_index_run[0][i]= ff_rl_mpeg1.index_run[0][i];
}
- init_uni_ac_vlc(&rl_mpeg1, uni_mpeg1_ac_vlc_len);
+ init_uni_ac_vlc(&ff_rl_mpeg1, uni_mpeg1_ac_vlc_len);
if(s->intra_vlc_format)
- init_uni_ac_vlc(&rl_mpeg2, uni_mpeg2_ac_vlc_len);
+ init_uni_ac_vlc(&ff_rl_mpeg2, uni_mpeg2_ac_vlc_len);
/* build unified dc encoding tables */
for(i=-255; i<256; i++)
if(diff<0) diff--;
index = av_log2(2*adiff);
- bits= vlc_dc_lum_bits[index] + index;
- code= (vlc_dc_lum_code[index]<<index) + (diff & ((1 << index) - 1));
+ bits= ff_mpeg12_vlc_dc_lum_bits[index] + index;
+ code= (ff_mpeg12_vlc_dc_lum_code[index]<<index) + (diff & ((1 << index) - 1));
mpeg1_lum_dc_uni[i+255]= bits + (code<<8);
- bits= vlc_dc_chroma_bits[index] + index;
- code= (vlc_dc_chroma_code[index]<<index) + (diff & ((1 << index) - 1));
+ bits= ff_mpeg12_vlc_dc_chroma_bits[index] + index;
+ code= (ff_mpeg12_vlc_dc_chroma_code[index]<<index) + (diff & ((1 << index) - 1));
mpeg1_chr_dc_uni[i+255]= bits + (code<<8);
}
for(mv=-MAX_MV; mv<=MAX_MV; mv++){
int len;
- if(mv==0) len= mbMotionVectorTable[0][1];
+ if(mv==0) len= ff_mpeg12_mbMotionVectorTable[0][1];
else{
int val, bit_size, range, code;
val--;
code = (val >> bit_size) + 1;
if(code<17){
- len= mbMotionVectorTable[code][1] + 1 + bit_size;
+ len= ff_mpeg12_mbMotionVectorTable[code][1] + 1 + bit_size;
}else{
- len= mbMotionVectorTable[16][1] + 2 + bit_size;
+ len= ff_mpeg12_mbMotionVectorTable[16][1] + 2 + bit_size;
}
}
if (component == 0) {
put_bits(
&s->pb,
- vlc_dc_lum_bits[index] + index,
- (vlc_dc_lum_code[index]<<index) + (diff & ((1 << index) - 1)));
+ ff_mpeg12_vlc_dc_lum_bits[index] + index,
+ (ff_mpeg12_vlc_dc_lum_code[index]<<index) + (diff & ((1 << index) - 1)));
}else{
put_bits(
&s->pb,
- vlc_dc_chroma_bits[index] + index,
- (vlc_dc_chroma_code[index]<<index) + (diff & ((1 << index) - 1)));
+ ff_mpeg12_vlc_dc_chroma_bits[index] + index,
+ (ff_mpeg12_vlc_dc_chroma_code[index]<<index) + (diff & ((1 << index) - 1)));
}
}else{
if (component == 0) {
{
int alevel, level, last_non_zero, dc, diff, i, j, run, last_index, sign;
int code, component;
- const uint16_t (*table_vlc)[2] = rl_mpeg1.table_vlc;
+ const uint16_t (*table_vlc)[2] = ff_rl_mpeg1.table_vlc;
last_index = s->block_last_index[n];
s->last_dc[component] = dc;
i = 1;
if (s->intra_vlc_format)
- table_vlc = rl_mpeg2.table_vlc;
+ table_vlc = ff_rl_mpeg2.table_vlc;
} else {
/* encode the first coefficient : needs to be done here because
it is handled slightly differently */
put_bits(&s->pb, 6, run);
if(s->codec_id == 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;
MPV_encode_picture,
MPV_encode_end,
.supported_framerates= ff_frame_rate_tab+1,
- .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
+ .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
.capabilities= CODEC_CAP_DELAY,
+ .long_name= NULL_IF_CONFIG_SMALL("MPEG-1 video"),
};
AVCodec mpeg2video_encoder = {
MPV_encode_picture,
MPV_encode_end,
.supported_framerates= ff_frame_rate_tab+1,
- .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, -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"),
};
projects / ffmpeg / blobdiff