/*
- * MPEG1 codec / MPEG2 decoder
- * Copyright (c) 2000,2001 Fabrice Bellard.
+ * MPEG-1/2 decoder
+ * Copyright (c) 2000,2001 Fabrice Bellard
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*/
/**
- * @file mpeg12.c
- * MPEG1/2 codec
+ * @file libavcodec/mpeg12.c
+ * MPEG-1/2 decoder
*/
//#define DEBUG
+#include "internal.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
+#include "mpeg12.h"
#include "mpeg12data.h"
+#include "mpeg12decdata.h"
#include "bytestream.h"
+#include "vdpau_internal.h"
+#include "xvmc_internal.h"
//#undef NDEBUG
//#include <assert.h>
-#define DC_VLC_BITS 9
#define MV_VLC_BITS 9
#define MBINCR_VLC_BITS 9
#define MB_PAT_VLC_BITS 9
#define MB_PTYPE_VLC_BITS 6
#define MB_BTYPE_VLC_BITS 6
-#define TEX_VLC_BITS 9
-
-#ifdef CONFIG_ENCODERS
-static void mpeg1_encode_block(MpegEncContext *s,
- DCTELEM *block,
- int component);
-static void mpeg1_encode_motion(MpegEncContext *s, int val, int f_or_b_code); // RAL: f_code parameter added
-#endif //CONFIG_ENCODERS
+
static inline int mpeg1_decode_block_inter(MpegEncContext *s,
DCTELEM *block,
int n);
-static inline int mpeg1_decode_block_intra(MpegEncContext *s,
- DCTELEM *block,
- int n);
static inline int mpeg1_fast_decode_block_inter(MpegEncContext *s, DCTELEM *block, int n);
static inline int mpeg2_decode_block_non_intra(MpegEncContext *s,
DCTELEM *block,
static int mpeg_decode_motion(MpegEncContext *s, int fcode, int pred);
static void exchange_uv(MpegEncContext *s);
-#ifdef HAVE_XVMC
-extern int XVMC_field_start(MpegEncContext *s, AVCodecContext *avctx);
-extern int XVMC_field_end(MpegEncContext *s);
-extern void XVMC_pack_pblocks(MpegEncContext *s,int cbp);
-extern void XVMC_init_block(MpegEncContext *s);//set s->block
-#endif
-
-static const enum PixelFormat pixfmt_yuv_420[]= {PIX_FMT_YUV420P,-1};
-static const enum PixelFormat pixfmt_yuv_422[]= {PIX_FMT_YUV422P,-1};
-static const enum PixelFormat pixfmt_yuv_444[]= {PIX_FMT_YUV444P,-1};
static const enum PixelFormat pixfmt_xvmc_mpg2_420[] = {
PIX_FMT_XVMC_MPEG2_IDCT,
PIX_FMT_XVMC_MPEG2_MC,
- -1};
-#ifdef CONFIG_ENCODERS
-static uint8_t mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
-static uint8_t fcode_tab[MAX_MV*2+1];
+ PIX_FMT_NONE};
-static uint8_t uni_mpeg1_ac_vlc_len [64*64*2];
-static uint8_t uni_mpeg2_ac_vlc_len [64*64*2];
+uint8_t ff_mpeg12_static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3];
-/* simple include everything table for dc, first byte is bits number next 3 are code*/
-static uint32_t mpeg1_lum_dc_uni[512];
-static uint32_t mpeg1_chr_dc_uni[512];
-static uint8_t mpeg1_index_run[2][64];
-static int8_t mpeg1_max_level[2][64];
-#endif //CONFIG_ENCODERS
-
-static uint8_t static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3];
+#define INIT_2D_VLC_RL(rl, static_size)\
+{\
+ static RL_VLC_ELEM rl_vlc_table[static_size];\
+ INIT_VLC_STATIC(&rl.vlc, TEX_VLC_BITS, rl.n + 2,\
+ &rl.table_vlc[0][1], 4, 2,\
+ &rl.table_vlc[0][0], 4, 2, static_size);\
+\
+ rl.rl_vlc[0]= rl_vlc_table;\
+ init_2d_vlc_rl(&rl);\
+}
-static void init_2d_vlc_rl(RLTable *rl, int use_static)
+static void init_2d_vlc_rl(RLTable *rl)
{
int i;
- init_vlc(&rl->vlc, TEX_VLC_BITS, rl->n + 2,
- &rl->table_vlc[0][1], 4, 2,
- &rl->table_vlc[0][0], 4, 2, use_static);
-
- if(use_static)
- rl->rl_vlc[0]= av_mallocz_static(rl->vlc.table_size*sizeof(RL_VLC_ELEM));
- else
- rl->rl_vlc[0]= av_malloc(rl->vlc.table_size*sizeof(RL_VLC_ELEM));
-
for(i=0; i<rl->vlc.table_size; i++){
int code= rl->vlc.table[i][0];
int len = rl->vlc.table[i][1];
}
}
-#ifdef CONFIG_ENCODERS
-static void init_uni_ac_vlc(RLTable *rl, uint8_t *uni_ac_vlc_len){
- int i;
-
- for(i=0; i<128; i++){
- int level= i-64;
- int run;
- for(run=0; run<64; run++){
- int len, bits, code;
-
- int alevel= FFABS(level);
- int sign= (level>>31)&1;
-
- if (alevel > rl->max_level[0][run])
- code= 111; /*rl->n*/
- else
- code= rl->index_run[0][run] + alevel - 1;
-
- if (code < 111 /* rl->n */) {
- /* store the vlc & sign at once */
- 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;
- } else {
- bits<<=16; len+=16;
- bits|= level & 0xff;
- if (level < 0) {
- bits|= 0x8001 + level + 255;
- } else {
- bits|= level & 0xffff;
- }
- }
- }
-
- uni_ac_vlc_len [UNI_AC_ENC_INDEX(run, i)]= len;
- }
- }
-}
-
-
-static int find_frame_rate_index(MpegEncContext *s){
- int i;
- int64_t dmin= INT64_MAX;
- 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 n1= 1001LL*s->avctx->time_base.den;
- if(s->avctx->strict_std_compliance > FF_COMPLIANCE_INOFFICIAL && i>=9) break;
-
- d = FFABS(n0 - n1);
- if(d < dmin){
- dmin=d;
- s->frame_rate_index= i;
- }
- }
- if(dmin)
- return -1;
- else
- return 0;
-}
-
-static int encode_init(AVCodecContext *avctx)
-{
- MpegEncContext *s = avctx->priv_data;
-
- if(MPV_encode_init(avctx) < 0)
- return -1;
-
- if(find_frame_rate_index(s) < 0){
- if(s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){
- av_log(avctx, AV_LOG_ERROR, "MPEG1/2 does not support %d/%d fps\n", avctx->time_base.den, avctx->time_base.num);
- return -1;
- }else{
- av_log(avctx, AV_LOG_INFO, "MPEG1/2 does not support %d/%d fps, there may be AV sync issues\n", avctx->time_base.den, avctx->time_base.num);
- }
- }
-
- if(avctx->profile == FF_PROFILE_UNKNOWN){
- if(avctx->level != FF_LEVEL_UNKNOWN){
- av_log(avctx, AV_LOG_ERROR, "Set profile and level\n");
- return -1;
- }
- avctx->profile = s->chroma_format == CHROMA_420 ? 4 : 0; /* Main or 4:2:2 */
- }
-
- if(avctx->level == FF_LEVEL_UNKNOWN){
- if(avctx->profile == 0){ /* 4:2:2 */
- if(avctx->width <= 720 && avctx->height <= 608) avctx->level = 5; /* Main */
- else avctx->level = 2; /* High */
- }else{
- if(avctx->profile != 1 && s->chroma_format != CHROMA_420){
- av_log(avctx, AV_LOG_ERROR, "Only High(1) and 4:2:2(0) profiles support 4:2:2 color sampling\n");
- return -1;
- }
- if(avctx->width <= 720 && avctx->height <= 576) avctx->level = 8; /* Main */
- else if(avctx->width <= 1440) avctx->level = 6; /* High 1440 */
- else avctx->level = 4; /* High */
- }
- }
-
- if((avctx->flags2 & CODEC_FLAG2_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;
- }
-
- return 0;
-}
-
-static void put_header(MpegEncContext *s, int header)
-{
- align_put_bits(&s->pb);
- put_bits(&s->pb, 16, header>>16);
- put_bits(&s->pb, 16, header&0xFFFF);
-}
-
-/* put sequence header if needed */
-static void mpeg1_encode_sequence_header(MpegEncContext *s)
-{
- unsigned int vbv_buffer_size;
- unsigned int fps, v;
- int i;
- uint64_t time_code;
- float best_aspect_error= 1E10;
- float aspect_ratio= av_q2d(s->avctx->sample_aspect_ratio);
- int constraint_parameter_flag;
-
- 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];
-
- /* 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);
-
- 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];
- else
- error-= av_q2d(mpeg2_aspect[i])*s->height/s->width;
-
- error= FFABS(error);
-
- if(error < best_aspect_error){
- best_aspect_error= error;
- s->aspect_ratio_info= i;
- }
- }
-
- put_bits(&s->pb, 4, s->aspect_ratio_info);
- put_bits(&s->pb, 4, s->frame_rate_index);
-
- if(s->avctx->rc_max_rate){
- v = (s->avctx->rc_max_rate + 399) / 400;
- if (v > 0x3ffff && s->codec_id == CODEC_ID_MPEG1VIDEO)
- v = 0x3ffff;
- }else{
- v= 0x3FFFF;
- }
-
- if(s->avctx->rc_buffer_size)
- vbv_buffer_size = s->avctx->rc_buffer_size;
- else
- /* VBV calculation: Scaled so that a VCD has the proper VBV size of 40 kilobytes */
- 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_bits(&s->pb, 1, 1); /* marker */
- put_bits(&s->pb, 10, vbv_buffer_size & 0x3FF);
-
- constraint_parameter_flag=
- s->width <= 768 && s->height <= 576 &&
- s->mb_width * s->mb_height <= 396 &&
- s->mb_width * s->mb_height * framerate.num <= framerate.den*396*25 &&
- framerate.num <= framerate.den*30 &&
- s->avctx->me_range && s->avctx->me_range < 128 &&
- vbv_buffer_size <= 20 &&
- v <= 1856000/400 &&
- s->codec_id == 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){
- put_header(s, EXT_START_CODE);
- put_bits(&s->pb, 4, 1); //seq ext
-
- put_bits(&s->pb, 1, s->avctx->profile == 0); //escx 1 for 4:2:2 profile */
-
- put_bits(&s->pb, 3, s->avctx->profile); //profile
- put_bits(&s->pb, 4, s->avctx->level); //level
-
- 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, 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, 1, s->low_delay);
- put_bits(&s->pb, 2, 0); // frame_rate_ext_n
- put_bits(&s->pb, 5, 0); // frame_rate_ext_d
- }
-
- put_header(s, GOP_START_CODE);
- put_bits(&s->pb, 1, !!(s->avctx->flags2 & CODEC_FLAG2_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;
-
- s->gop_picture_number = s->current_picture_ptr->coded_picture_number;
- if (s->avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE) {
- /* only works for NTSC 29.97 */
- int d = time_code / 17982;
- int m = time_code % 17982;
- //if (m < 2) m += 2; /* not needed since -2,-1 / 1798 in C returns 0 */
- time_code += 18 * d + 2 * ((m - 2) / 1798);
- }
- put_bits(&s->pb, 5, (uint32_t)((time_code / (fps * 3600)) % 24));
- put_bits(&s->pb, 6, (uint32_t)((time_code / (fps * 60)) % 60));
- put_bits(&s->pb, 1, 1);
- put_bits(&s->pb, 6, (uint32_t)((time_code / fps) % 60));
- put_bits(&s->pb, 6, (uint32_t)((time_code % fps)));
- put_bits(&s->pb, 1, !!(s->flags & CODEC_FLAG_CLOSED_GOP));
- put_bits(&s->pb, 1, 0); /* broken link */
- }
-}
-
-static inline void encode_mb_skip_run(MpegEncContext *s, int run){
- while (run >= 33) {
- put_bits(&s->pb, 11, 0x008);
- run -= 33;
- }
- put_bits(&s->pb, mbAddrIncrTable[run][1],
- mbAddrIncrTable[run][0]);
-}
-#endif //CONFIG_ENCODERS
-
-static void common_init(MpegEncContext *s)
+void ff_mpeg12_common_init(MpegEncContext *s)
{
s->y_dc_scale_table=
memset(s->last_mv, 0, sizeof(s->last_mv));
}
-#ifdef CONFIG_ENCODERS
-
-static av_always_inline void put_qscale(MpegEncContext *s)
-{
- if(s->q_scale_type){
- assert(s->qscale>=1 && s->qscale <=12);
- put_bits(&s->pb, 5, inv_non_linear_qscale[s->qscale]);
- }else{
- put_bits(&s->pb, 5, s->qscale);
- }
-}
-
-void ff_mpeg1_encode_slice_header(MpegEncContext *s){
- 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)
-{
- mpeg1_encode_sequence_header(s);
-
- /* mpeg1 picture header */
- put_header(s, PICTURE_START_CODE);
- /* temporal reference */
-
- // RAL: s->picture_number instead of s->fake_picture_number
- put_bits(&s->pb, 10, (s->picture_number -
- s->gop_picture_number) & 0x3ff);
- put_bits(&s->pb, 3, s->pict_type);
-
- s->vbv_delay_ptr= s->pb.buf + put_bits_count(&s->pb)/8;
- 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) {
- 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 */
- else
- put_bits(&s->pb, 3, 7); /* forward_f_code */
- }
-
- // RAL: Backward f_code necessary for B frames
- if (s->pict_type == 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 */
- 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){
- 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) {
- 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) {
- put_bits(&s->pb, 4, s->b_code);
- put_bits(&s->pb, 4, s->b_code);
- }else{
- put_bits(&s->pb, 8, 255);
- }
- put_bits(&s->pb, 2, s->intra_dc_precision);
-
- assert(s->picture_structure == PICT_FRAME);
- put_bits(&s->pb, 2, s->picture_structure);
- 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);
- }
- /* XXX: optimize the generation of this flag with entropy
- measures */
- s->frame_pred_frame_dct = s->progressive_sequence;
-
- put_bits(&s->pb, 1, s->frame_pred_frame_dct);
- put_bits(&s->pb, 1, s->concealment_motion_vectors);
- put_bits(&s->pb, 1, s->q_scale_type);
- put_bits(&s->pb, 1, s->intra_vlc_format);
- put_bits(&s->pb, 1, s->alternate_scan);
- put_bits(&s->pb, 1, s->repeat_first_field);
- s->progressive_frame = s->progressive_sequence;
- put_bits(&s->pb, 1, s->chroma_format == CHROMA_420 ? s->progressive_frame : 0); /* chroma_420_type */
- 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){
- int i;
-
- put_header(s, USER_START_CODE);
- for(i=0; i<sizeof(svcd_scan_offset_placeholder); i++){
- put_bits(&s->pb, 8, svcd_scan_offset_placeholder[i]);
- }
- }
-
- s->mb_y=0;
- ff_mpeg1_encode_slice_header(s);
-}
-
-static inline void put_mb_modes(MpegEncContext *s, int n, int bits,
- int has_mv, int field_motion)
-{
- put_bits(&s->pb, n, bits);
- if (!s->frame_pred_frame_dct) {
- if (has_mv)
- put_bits(&s->pb, 2, 2 - field_motion); /* motion_type: frame/field */
- put_bits(&s->pb, 1, s->interlaced_dct);
- }
-}
-
-static av_always_inline void mpeg1_encode_mb_internal(MpegEncContext *s,
- DCTELEM block[6][64],
- int motion_x, int motion_y,
- int mb_block_count)
-{
- int i, cbp;
- const int mb_x = s->mb_x;
- const int mb_y = s->mb_y;
- const int first_mb= mb_x == s->resync_mb_x && mb_y == s->resync_mb_y;
-
- /* compute cbp */
- cbp = 0;
- for(i=0;i<mb_block_count;i++) {
- if (s->block_last_index[i] >= 0)
- cbp |= 1 << (mb_block_count - 1 - i);
- }
-
- 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->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){
- 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;
- }
- } else {
- if(first_mb){
- assert(s->mb_skip_run == 0);
- encode_mb_skip_run(s, s->mb_x);
- }else{
- encode_mb_skip_run(s, s->mb_skip_run);
- }
-
- if (s->pict_type == I_TYPE) {
- if(s->dquant && cbp){
- put_mb_modes(s, 2, 1, 0, 0); /* macroblock_type : macroblock_quant = 1 */
- put_qscale(s);
- }else{
- put_mb_modes(s, 1, 1, 0, 0); /* macroblock_type : macroblock_quant = 0 */
- s->qscale -= s->dquant;
- }
- s->misc_bits+= get_bits_diff(s);
- s->i_count++;
- } else if (s->mb_intra) {
- if(s->dquant && cbp){
- put_mb_modes(s, 6, 0x01, 0, 0);
- put_qscale(s);
- }else{
- put_mb_modes(s, 5, 0x03, 0, 0);
- s->qscale -= s->dquant;
- }
- 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) {
- if(s->mv_type == MV_TYPE_16X16){
- if (cbp != 0) {
- if ((motion_x|motion_y) == 0) {
- if(s->dquant){
- put_mb_modes(s, 5, 1, 0, 0); /* macroblock_pattern & quant */
- put_qscale(s);
- }else{
- put_mb_modes(s, 2, 1, 0, 0); /* macroblock_pattern only */
- }
- s->misc_bits+= get_bits_diff(s);
- } else {
- if(s->dquant){
- put_mb_modes(s, 5, 2, 1, 0); /* motion + cbp */
- put_qscale(s);
- }else{
- put_mb_modes(s, 1, 1, 1, 0); /* motion + cbp */
- }
- s->misc_bits+= get_bits_diff(s);
- mpeg1_encode_motion(s, motion_x - s->last_mv[0][0][0], s->f_code); // RAL: f_code parameter added
- mpeg1_encode_motion(s, motion_y - s->last_mv[0][0][1], s->f_code); // RAL: f_code parameter added
- s->mv_bits+= get_bits_diff(s);
- }
- } else {
- put_bits(&s->pb, 3, 1); /* motion only */
- if (!s->frame_pred_frame_dct)
- put_bits(&s->pb, 2, 2); /* motion_type: frame */
- s->misc_bits+= get_bits_diff(s);
- mpeg1_encode_motion(s, motion_x - s->last_mv[0][0][0], s->f_code); // RAL: f_code parameter added
- mpeg1_encode_motion(s, motion_y - s->last_mv[0][0][1], s->f_code); // RAL: f_code parameter added
- s->qscale -= s->dquant;
- s->mv_bits+= get_bits_diff(s);
- }
- s->last_mv[0][1][0]= s->last_mv[0][0][0]= motion_x;
- s->last_mv[0][1][1]= s->last_mv[0][0][1]= motion_y;
- }else{
- assert(!s->frame_pred_frame_dct && s->mv_type == MV_TYPE_FIELD);
-
- if (cbp) {
- if(s->dquant){
- put_mb_modes(s, 5, 2, 1, 1); /* motion + cbp */
- put_qscale(s);
- }else{
- put_mb_modes(s, 1, 1, 1, 1); /* motion + cbp */
- }
- } else {
- put_bits(&s->pb, 3, 1); /* motion only */
- put_bits(&s->pb, 2, 1); /* motion_type: field */
- s->qscale -= s->dquant;
- }
- s->misc_bits+= get_bits_diff(s);
- for(i=0; i<2; i++){
- put_bits(&s->pb, 1, s->field_select[0][i]);
- mpeg1_encode_motion(s, s->mv[0][i][0] - s->last_mv[0][i][0] , s->f_code);
- mpeg1_encode_motion(s, s->mv[0][i][1] - (s->last_mv[0][i][1]>>1), s->f_code);
- s->last_mv[0][i][0]= s->mv[0][i][0];
- s->last_mv[0][i][1]= 2*s->mv[0][i][1];
- }
- s->mv_bits+= get_bits_diff(s);
- }
- if(cbp) {
- if (s->chroma_y_shift) {
- put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]);
- } else {
- put_bits(&s->pb, mbPatTable[cbp>>2][1], mbPatTable[cbp>>2][0]);
- put_bits(&s->pb, 2, cbp & 3);
- }
- }
- 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_qscale(s);
- } else {
- put_mb_modes(s, mb_type_len[s->mv_dir], 3, 1, 0);
- }
- }else{ // No coded bloc pattern
- put_bits(&s->pb, mb_type_len[s->mv_dir], 2);
- if (!s->frame_pred_frame_dct)
- put_bits(&s->pb, 2, 2); /* motion_type: frame */
- s->qscale -= s->dquant;
- }
- s->misc_bits += get_bits_diff(s);
- if (s->mv_dir&MV_DIR_FORWARD){
- mpeg1_encode_motion(s, s->mv[0][0][0] - s->last_mv[0][0][0], s->f_code);
- mpeg1_encode_motion(s, s->mv[0][0][1] - s->last_mv[0][0][1], s->f_code);
- s->last_mv[0][0][0]=s->last_mv[0][1][0]= s->mv[0][0][0];
- s->last_mv[0][0][1]=s->last_mv[0][1][1]= s->mv[0][0][1];
- s->f_count++;
- }
- if (s->mv_dir&MV_DIR_BACKWARD){
- mpeg1_encode_motion(s, s->mv[1][0][0] - s->last_mv[1][0][0], s->b_code);
- mpeg1_encode_motion(s, s->mv[1][0][1] - s->last_mv[1][0][1], s->b_code);
- s->last_mv[1][0][0]=s->last_mv[1][1][0]= s->mv[1][0][0];
- s->last_mv[1][0][1]=s->last_mv[1][1][1]= s->mv[1][0][1];
- s->b_count++;
- }
- }else{
- assert(s->mv_type == MV_TYPE_FIELD);
- assert(!s->frame_pred_frame_dct);
- if (cbp){ // With coded bloc pattern
- if (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_qscale(s);
- } else {
- put_mb_modes(s, mb_type_len[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, 2, 1); /* motion_type: field */
- s->qscale -= s->dquant;
- }
- s->misc_bits += get_bits_diff(s);
- if (s->mv_dir&MV_DIR_FORWARD){
- for(i=0; i<2; i++){
- put_bits(&s->pb, 1, s->field_select[0][i]);
- mpeg1_encode_motion(s, s->mv[0][i][0] - s->last_mv[0][i][0] , s->f_code);
- mpeg1_encode_motion(s, s->mv[0][i][1] - (s->last_mv[0][i][1]>>1), s->f_code);
- s->last_mv[0][i][0]= s->mv[0][i][0];
- s->last_mv[0][i][1]= 2*s->mv[0][i][1];
- }
- s->f_count++;
- }
- if (s->mv_dir&MV_DIR_BACKWARD){
- for(i=0; i<2; i++){
- put_bits(&s->pb, 1, s->field_select[1][i]);
- mpeg1_encode_motion(s, s->mv[1][i][0] - s->last_mv[1][i][0] , s->b_code);
- mpeg1_encode_motion(s, s->mv[1][i][1] - (s->last_mv[1][i][1]>>1), s->b_code);
- s->last_mv[1][i][0]= s->mv[1][i][0];
- s->last_mv[1][i][1]= 2*s->mv[1][i][1];
- }
- s->b_count++;
- }
- }
- s->mv_bits += get_bits_diff(s);
- if(cbp) {
- if (s->chroma_y_shift) {
- put_bits(&s->pb, mbPatTable[cbp][1], mbPatTable[cbp][0]);
- } else {
- put_bits(&s->pb, mbPatTable[cbp>>2][1], mbPatTable[cbp>>2][0]);
- put_bits(&s->pb, 2, cbp & 3);
- }
- }
- }
- for(i=0;i<mb_block_count;i++) {
- if (cbp & (1 << (mb_block_count - 1 - i))) {
- mpeg1_encode_block(s, block[i], i);
- }
- }
- s->mb_skip_run = 0;
- if(s->mb_intra)
- s->i_tex_bits+= get_bits_diff(s);
- else
- s->p_tex_bits+= get_bits_diff(s);
- }
-}
-
-void 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,
- mbMotionVectorTable[0][1],
- mbMotionVectorTable[0][0]);
- } else {
- bit_size = f_or_b_code - 1;
- range = 1 << bit_size;
- /* modulo encoding */
- l= INT_BIT - 5 - bit_size;
- val= (val<<l)>>l;
-
- if (val >= 0) {
- val--;
- code = (val >> bit_size) + 1;
- bits = val & (range - 1);
- sign = 0;
- } else {
- val = -val;
- val--;
- code = (val >> bit_size) + 1;
- bits = val & (range - 1);
- sign = 1;
- }
-
- assert(code > 0 && code <= 16);
-
- put_bits(&s->pb,
- mbMotionVectorTable[code][1],
- mbMotionVectorTable[code][0]);
-
- put_bits(&s->pb, 1, sign);
- if (bit_size > 0) {
- put_bits(&s->pb, bit_size, bits);
- }
- }
-}
-
-void ff_mpeg1_encode_init(MpegEncContext *s)
-{
- static int done=0;
-
- common_init(s);
-
- if(!done){
- int f_code;
- int mv;
- int i;
-
- done=1;
- init_rl(&rl_mpeg1, static_rl_table_store[0]);
- init_rl(&rl_mpeg2, 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];
- }
-
- init_uni_ac_vlc(&rl_mpeg1, uni_mpeg1_ac_vlc_len);
- if(s->intra_vlc_format)
- init_uni_ac_vlc(&rl_mpeg2, uni_mpeg2_ac_vlc_len);
-
- /* build unified dc encoding tables */
- for(i=-255; i<256; i++)
- {
- int adiff, index;
- int bits, code;
- int diff=i;
-
- adiff = FFABS(diff);
- 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));
- 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));
- mpeg1_chr_dc_uni[i+255]= bits + (code<<8);
- }
-
- for(f_code=1; f_code<=MAX_FCODE; f_code++){
- for(mv=-MAX_MV; mv<=MAX_MV; mv++){
- int len;
-
- if(mv==0) len= mbMotionVectorTable[0][1];
- else{
- int val, bit_size, range, code;
-
- bit_size = f_code - 1;
- range = 1 << bit_size;
-
- val=mv;
- if (val < 0)
- val = -val;
- val--;
- code = (val >> bit_size) + 1;
- if(code<17){
- len= mbMotionVectorTable[code][1] + 1 + bit_size;
- }else{
- len= mbMotionVectorTable[16][1] + 2 + bit_size;
- }
- }
-
- mv_penalty[f_code][mv+MAX_MV]= len;
- }
- }
-
-
- for(f_code=MAX_FCODE; f_code>0; f_code--){
- for(mv=-(8<<f_code); mv<(8<<f_code); mv++){
- fcode_tab[mv+MAX_MV]= f_code;
- }
- }
- }
- s->me.mv_penalty= mv_penalty;
- s->fcode_tab= fcode_tab;
- if(s->codec_id == CODEC_ID_MPEG1VIDEO){
- s->min_qcoeff=-255;
- s->max_qcoeff= 255;
- }else{
- s->min_qcoeff=-2047;
- s->max_qcoeff= 2047;
- }
- if (s->intra_vlc_format) {
- s->intra_ac_vlc_length=
- s->intra_ac_vlc_last_length= uni_mpeg2_ac_vlc_len;
- } else {
- s->intra_ac_vlc_length=
- s->intra_ac_vlc_last_length= uni_mpeg1_ac_vlc_len;
- }
- s->inter_ac_vlc_length=
- s->inter_ac_vlc_last_length= uni_mpeg1_ac_vlc_len;
-}
-
-static inline void encode_dc(MpegEncContext *s, int diff, int component)
-{
- if(((unsigned) (diff+255)) >= 511){
- int index;
-
- if(diff<0){
- index= av_log2_16bit(-2*diff);
- diff--;
- }else{
- index= av_log2_16bit(2*diff);
- }
- if (component == 0) {
- put_bits(
- &s->pb,
- vlc_dc_lum_bits[index] + index,
- (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)));
- }
- }else{
- if (component == 0) {
- put_bits(
- &s->pb,
- mpeg1_lum_dc_uni[diff+255]&0xFF,
- mpeg1_lum_dc_uni[diff+255]>>8);
- } else {
- put_bits(
- &s->pb,
- mpeg1_chr_dc_uni[diff+255]&0xFF,
- mpeg1_chr_dc_uni[diff+255]>>8);
- }
- }
-}
-
-static void mpeg1_encode_block(MpegEncContext *s,
- DCTELEM *block,
- int n)
-{
- 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;
-
- last_index = s->block_last_index[n];
-
- /* DC coef */
- if (s->mb_intra) {
- component = (n <= 3 ? 0 : (n&1) + 1);
- dc = block[0]; /* overflow is impossible */
- diff = dc - s->last_dc[component];
- encode_dc(s, diff, component);
- s->last_dc[component] = dc;
- i = 1;
- if (s->intra_vlc_format)
- table_vlc = rl_mpeg2.table_vlc;
- } else {
- /* encode the first coefficient : needs to be done here because
- it is handled slightly differently */
- level = block[0];
- if (abs(level) == 1) {
- code = ((uint32_t)level >> 31); /* the sign bit */
- put_bits(&s->pb, 2, code | 0x02);
- i = 1;
- } else {
- i = 0;
- last_non_zero = -1;
- goto next_coef;
- }
- }
-
- /* now quantify & encode AC coefs */
- last_non_zero = i - 1;
-
- for(;i<=last_index;i++) {
- 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)
- sign&=1;
-
- if (alevel <= mpeg1_max_level[0][run]){
- code= mpeg1_index_run[0][run] + alevel - 1;
- /* store the vlc & sign at once */
- put_bits(&s->pb, table_vlc[code][1]+1, (table_vlc[code][0]<<1) + sign);
- } else {
- /* escape seems to be pretty rare <5% so I do not optimize it */
- 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 (alevel < 128) {
- put_bits(&s->pb, 8, level & 0xff);
- } else {
- if (level < 0) {
- put_bits(&s->pb, 16, 0x8001 + level + 255);
- } else {
- put_bits(&s->pb, 16, level & 0xffff);
- }
- }
- }else{
- put_bits(&s->pb, 12, level & 0xfff);
- }
- }
- last_non_zero = i;
- }
- }
- /* end of block */
- put_bits(&s->pb, table_vlc[112][1], table_vlc[112][0]);
-}
-#endif //CONFIG_ENCODERS
/******************************************/
/* decoding */
-static VLC dc_lum_vlc;
-static VLC dc_chroma_vlc;
static VLC mv_vlc;
static VLC mbincr_vlc;
static VLC mb_ptype_vlc;
static VLC mb_btype_vlc;
static VLC mb_pat_vlc;
-static void init_vlcs(void)
+av_cold void ff_mpeg12_init_vlcs(void)
{
static int done = 0;
if (!done) {
done = 1;
- init_vlc(&dc_lum_vlc, DC_VLC_BITS, 12,
- vlc_dc_lum_bits, 1, 1,
- vlc_dc_lum_code, 2, 2, 1);
- init_vlc(&dc_chroma_vlc, DC_VLC_BITS, 12,
- vlc_dc_chroma_bits, 1, 1,
- vlc_dc_chroma_code, 2, 2, 1);
- init_vlc(&mv_vlc, MV_VLC_BITS, 17,
- &mbMotionVectorTable[0][1], 2, 1,
- &mbMotionVectorTable[0][0], 2, 1, 1);
- init_vlc(&mbincr_vlc, MBINCR_VLC_BITS, 36,
- &mbAddrIncrTable[0][1], 2, 1,
- &mbAddrIncrTable[0][0], 2, 1, 1);
- init_vlc(&mb_pat_vlc, MB_PAT_VLC_BITS, 64,
- &mbPatTable[0][1], 2, 1,
- &mbPatTable[0][0], 2, 1, 1);
-
- init_vlc(&mb_ptype_vlc, MB_PTYPE_VLC_BITS, 7,
+ INIT_VLC_STATIC(&dc_lum_vlc, DC_VLC_BITS, 12,
+ ff_mpeg12_vlc_dc_lum_bits, 1, 1,
+ ff_mpeg12_vlc_dc_lum_code, 2, 2, 512);
+ INIT_VLC_STATIC(&dc_chroma_vlc, DC_VLC_BITS, 12,
+ ff_mpeg12_vlc_dc_chroma_bits, 1, 1,
+ ff_mpeg12_vlc_dc_chroma_code, 2, 2, 514);
+ INIT_VLC_STATIC(&mv_vlc, MV_VLC_BITS, 17,
+ &ff_mpeg12_mbMotionVectorTable[0][1], 2, 1,
+ &ff_mpeg12_mbMotionVectorTable[0][0], 2, 1, 518);
+ INIT_VLC_STATIC(&mbincr_vlc, MBINCR_VLC_BITS, 36,
+ &ff_mpeg12_mbAddrIncrTable[0][1], 2, 1,
+ &ff_mpeg12_mbAddrIncrTable[0][0], 2, 1, 538);
+ INIT_VLC_STATIC(&mb_pat_vlc, MB_PAT_VLC_BITS, 64,
+ &ff_mpeg12_mbPatTable[0][1], 2, 1,
+ &ff_mpeg12_mbPatTable[0][0], 2, 1, 512);
+
+ INIT_VLC_STATIC(&mb_ptype_vlc, MB_PTYPE_VLC_BITS, 7,
&table_mb_ptype[0][1], 2, 1,
- &table_mb_ptype[0][0], 2, 1, 1);
- init_vlc(&mb_btype_vlc, MB_BTYPE_VLC_BITS, 11,
+ &table_mb_ptype[0][0], 2, 1, 64);
+ INIT_VLC_STATIC(&mb_btype_vlc, MB_BTYPE_VLC_BITS, 11,
&table_mb_btype[0][1], 2, 1,
- &table_mb_btype[0][0], 2, 1, 1);
- init_rl(&rl_mpeg1, static_rl_table_store[0]);
- init_rl(&rl_mpeg2, static_rl_table_store[1]);
+ &table_mb_btype[0][0], 2, 1, 64);
+ init_rl(&ff_rl_mpeg1, ff_mpeg12_static_rl_table_store[0]);
+ init_rl(&ff_rl_mpeg2, ff_mpeg12_static_rl_table_store[1]);
- init_2d_vlc_rl(&rl_mpeg1, 1);
- init_2d_vlc_rl(&rl_mpeg2, 1);
+ INIT_2D_VLC_RL(ff_rl_mpeg1, 680);
+ INIT_2D_VLC_RL(ff_rl_mpeg2, 674);
}
}
}
}
-/* motion type (for mpeg2) */
+/* motion type (for MPEG-2) */
#define MT_FIELD 1
#define MT_FRAME 2
#define MT_16X8 2
assert(s->mb_skipped==0);
- if (s->mb_skip_run-- != 0) {
- if(s->pict_type == I_TYPE){
- av_log(s->avctx, AV_LOG_ERROR, "skipped MB in I frame at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
-
- /* skip mb */
- s->mb_intra = 0;
- for(i=0;i<12;i++)
- s->block_last_index[i] = -1;
- if(s->picture_structure == PICT_FRAME)
- s->mv_type = MV_TYPE_16X16;
- else
- s->mv_type = MV_TYPE_FIELD;
- if (s->pict_type == P_TYPE) {
- /* if P type, zero motion vector is implied */
- s->mv_dir = MV_DIR_FORWARD;
- s->mv[0][0][0] = s->mv[0][0][1] = 0;
- s->last_mv[0][0][0] = s->last_mv[0][0][1] = 0;
- s->last_mv[0][1][0] = s->last_mv[0][1][1] = 0;
- s->field_select[0][0]= s->picture_structure - 1;
+ if (s->mb_skip_run-- != 0) {
+ if (s->pict_type == FF_P_TYPE) {
s->mb_skipped = 1;
s->current_picture.mb_type[ s->mb_x + s->mb_y*s->mb_stride ]= MB_TYPE_SKIP | MB_TYPE_L0 | MB_TYPE_16x16;
} else {
if(s->mb_x)
mb_type= s->current_picture.mb_type[ s->mb_x + s->mb_y*s->mb_stride - 1];
else
- mb_type= s->current_picture.mb_type[ s->mb_width + (s->mb_y-1)*s->mb_stride - 1]; // FIXME not sure if this is allowed in mpeg at all,
+ mb_type= s->current_picture.mb_type[ s->mb_width + (s->mb_y-1)*s->mb_stride - 1]; // FIXME not sure if this is allowed in MPEG at all
if(IS_INTRA(mb_type))
return -1;
- /* if B type, reuse previous vectors and directions */
- s->mv[0][0][0] = s->last_mv[0][0][0];
- s->mv[0][0][1] = s->last_mv[0][0][1];
- s->mv[1][0][0] = s->last_mv[1][0][0];
- s->mv[1][0][1] = s->last_mv[1][0][1];
-
s->current_picture.mb_type[ s->mb_x + s->mb_y*s->mb_stride ]=
mb_type | MB_TYPE_SKIP;
// assert(s->current_picture.mb_type[ s->mb_x + s->mb_y*s->mb_stride - 1]&(MB_TYPE_16x16|MB_TYPE_16x8));
switch(s->pict_type) {
default:
- case I_TYPE:
+ case FF_I_TYPE:
if (get_bits1(&s->gb) == 0) {
if (get_bits1(&s->gb) == 0){
av_log(s->avctx, AV_LOG_ERROR, "invalid mb type in I Frame at %d %d\n", s->mb_x, s->mb_y);
mb_type = MB_TYPE_INTRA;
}
break;
- case P_TYPE:
+ case FF_P_TYPE:
mb_type = get_vlc2(&s->gb, mb_ptype_vlc.table, MB_PTYPE_VLC_BITS, 1);
if (mb_type < 0){
av_log(s->avctx, AV_LOG_ERROR, "invalid mb type in P Frame at %d %d\n", s->mb_x, s->mb_y);
}
mb_type = ptype2mb_type[ mb_type ];
break;
- case B_TYPE:
+ case FF_B_TYPE:
mb_type = get_vlc2(&s->gb, mb_btype_vlc.table, MB_BTYPE_VLC_BITS, 1);
if (mb_type < 0){
av_log(s->avctx, AV_LOG_ERROR, "invalid mb type in B Frame at %d %d\n", s->mb_x, s->mb_y);
s->dsp.clear_blocks(s->block[6]);
}
- /* compute dct type */
- if (s->picture_structure == PICT_FRAME && //FIXME add a interlaced_dct coded var?
+ /* compute DCT type */
+ if (s->picture_structure == PICT_FRAME && //FIXME add an interlaced_dct coded var?
!s->frame_pred_frame_dct) {
s->interlaced_dct = get_bits1(&s->gb);
}
}else
memset(s->last_mv, 0, sizeof(s->last_mv)); /* reset mv prediction */
s->mb_intra = 1;
-#ifdef HAVE_XVMC
- //one 1 we memcpy blocks in xvmcvideo
- if(s->avctx->xvmc_acceleration > 1){
- XVMC_pack_pblocks(s,-1);//inter are always full blocks
+ //if 1, we memcpy blocks in xvmcvideo
+ if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration > 1){
+ ff_xvmc_pack_pblocks(s,-1);//inter are always full blocks
if(s->swap_uv){
exchange_uv(s);
}
}
-#endif
if (s->codec_id == CODEC_ID_MPEG2VIDEO) {
if(s->flags2 & CODEC_FLAG2_FAST){
for(i=0;i<6;i++) {
- mpeg2_fast_decode_block_intra(s, s->pblocks[i], i);
+ mpeg2_fast_decode_block_intra(s, *s->pblocks[i], i);
}
}else{
for(i=0;i<mb_block_count;i++) {
- if (mpeg2_decode_block_intra(s, s->pblocks[i], i) < 0)
+ if (mpeg2_decode_block_intra(s, *s->pblocks[i], i) < 0)
return -1;
}
}
} else {
for(i=0;i<6;i++) {
- if (mpeg1_decode_block_intra(s, s->pblocks[i], i) < 0)
+ if (ff_mpeg1_decode_block_intra(s, *s->pblocks[i], i) < 0)
return -1;
}
}
if (mb_type & MB_TYPE_ZERO_MV){
assert(mb_type & MB_TYPE_CBP);
- /* compute dct type */
- if (s->picture_structure == PICT_FRAME && //FIXME add a interlaced_dct coded var?
- !s->frame_pred_frame_dct) {
- s->interlaced_dct = get_bits1(&s->gb);
- }
-
- if (IS_QUANT(mb_type))
- s->qscale = get_qscale(s);
-
s->mv_dir = MV_DIR_FORWARD;
- if(s->picture_structure == PICT_FRAME)
+ if(s->picture_structure == PICT_FRAME){
+ if(!s->frame_pred_frame_dct)
+ s->interlaced_dct = get_bits1(&s->gb);
s->mv_type = MV_TYPE_16X16;
- else{
+ }else{
s->mv_type = MV_TYPE_FIELD;
mb_type |= MB_TYPE_INTERLACED;
s->field_select[0][0]= s->picture_structure - 1;
}
+
+ if (IS_QUANT(mb_type))
+ s->qscale = get_qscale(s);
+
s->last_mv[0][0][0] = 0;
s->last_mv[0][0][1] = 0;
s->last_mv[0][1][0] = 0;
motion_type = MT_FRAME;
else{
motion_type = get_bits(&s->gb, 2);
- }
-
- /* compute dct type */
- if (s->picture_structure == PICT_FRAME && //FIXME add a interlaced_dct coded var?
- !s->frame_pred_frame_dct && HAS_CBP(mb_type)) {
- s->interlaced_dct = get_bits1(&s->gb);
+ if (s->picture_structure == PICT_FRAME && HAS_CBP(mb_type))
+ s->interlaced_dct = get_bits1(&s->gb);
}
if (IS_QUANT(mb_type))
s->qscale = get_qscale(s);
/* motion vectors */
- s->mv_dir = 0;
- for(i=0;i<2;i++) {
- if (USES_LIST(mb_type, i)) {
- s->mv_dir |= (MV_DIR_FORWARD >> i);
- dprintf(s->avctx, "motion_type=%d\n", motion_type);
- switch(motion_type) {
- case MT_FRAME: /* or MT_16X8 */
- if (s->picture_structure == PICT_FRAME) {
+ s->mv_dir= (mb_type>>13)&3;
+ dprintf(s->avctx, "motion_type=%d\n", motion_type);
+ switch(motion_type) {
+ case MT_FRAME: /* or MT_16X8 */
+ if (s->picture_structure == PICT_FRAME) {
+ mb_type |= MB_TYPE_16x16;
+ s->mv_type = MV_TYPE_16X16;
+ for(i=0;i<2;i++) {
+ if (USES_LIST(mb_type, i)) {
/* MT_FRAME */
- mb_type |= MB_TYPE_16x16;
- s->mv_type = MV_TYPE_16X16;
s->mv[i][0][0]= s->last_mv[i][0][0]= s->last_mv[i][1][0] =
mpeg_decode_motion(s, s->mpeg_f_code[i][0], s->last_mv[i][0][0]);
s->mv[i][0][1]= s->last_mv[i][0][1]= s->last_mv[i][1][1] =
mpeg_decode_motion(s, s->mpeg_f_code[i][1], s->last_mv[i][0][1]);
- /* full_pel: only for mpeg1 */
+ /* full_pel: only for MPEG-1 */
if (s->full_pel[i]){
s->mv[i][0][0] <<= 1;
s->mv[i][0][1] <<= 1;
}
- } else {
+ }
+ }
+ } else {
+ mb_type |= MB_TYPE_16x8 | MB_TYPE_INTERLACED;
+ s->mv_type = MV_TYPE_16X8;
+ for(i=0;i<2;i++) {
+ if (USES_LIST(mb_type, i)) {
/* MT_16X8 */
- mb_type |= MB_TYPE_16x8 | MB_TYPE_INTERLACED;
- s->mv_type = MV_TYPE_16X8;
for(j=0;j<2;j++) {
s->field_select[i][j] = get_bits1(&s->gb);
for(k=0;k<2;k++) {
}
}
}
- break;
- case MT_FIELD:
- s->mv_type = MV_TYPE_FIELD;
- if (s->picture_structure == PICT_FRAME) {
- mb_type |= MB_TYPE_16x8 | MB_TYPE_INTERLACED;
+ }
+ }
+ break;
+ case MT_FIELD:
+ s->mv_type = MV_TYPE_FIELD;
+ if (s->picture_structure == PICT_FRAME) {
+ mb_type |= MB_TYPE_16x8 | MB_TYPE_INTERLACED;
+ for(i=0;i<2;i++) {
+ if (USES_LIST(mb_type, i)) {
for(j=0;j<2;j++) {
s->field_select[i][j] = get_bits1(&s->gb);
val = mpeg_decode_motion(s, s->mpeg_f_code[i][0],
s->mv[i][j][1] = val;
dprintf(s->avctx, "fmy=%d\n", val);
}
- } else {
- mb_type |= MB_TYPE_16x16 | MB_TYPE_INTERLACED;
+ }
+ }
+ } else {
+ mb_type |= MB_TYPE_16x16 | MB_TYPE_INTERLACED;
+ for(i=0;i<2;i++) {
+ if (USES_LIST(mb_type, i)) {
s->field_select[i][0] = get_bits1(&s->gb);
for(k=0;k<2;k++) {
val = mpeg_decode_motion(s, s->mpeg_f_code[i][k],
s->mv[i][0][k] = val;
}
}
- break;
- case MT_DMV:
- {
- int dmx, dmy, mx, my, m;
-
- mx = mpeg_decode_motion(s, s->mpeg_f_code[i][0],
- s->last_mv[i][0][0]);
- s->last_mv[i][0][0] = mx;
- s->last_mv[i][1][0] = mx;
- dmx = get_dmv(s);
- my = mpeg_decode_motion(s, s->mpeg_f_code[i][1],
- s->last_mv[i][0][1] >> 1);
- dmy = get_dmv(s);
- s->mv_type = MV_TYPE_DMV;
-
-
- s->last_mv[i][0][1] = my<<1;
- s->last_mv[i][1][1] = my<<1;
-
- s->mv[i][0][0] = mx;
- s->mv[i][0][1] = my;
- s->mv[i][1][0] = mx;//not used
- s->mv[i][1][1] = my;//not used
-
- if (s->picture_structure == PICT_FRAME) {
- mb_type |= MB_TYPE_16x16 | MB_TYPE_INTERLACED;
-
- //m = 1 + 2 * s->top_field_first;
- m = s->top_field_first ? 1 : 3;
-
- /* top -> top pred */
- s->mv[i][2][0] = ((mx * m + (mx > 0)) >> 1) + dmx;
- s->mv[i][2][1] = ((my * m + (my > 0)) >> 1) + dmy - 1;
- m = 4 - m;
- s->mv[i][3][0] = ((mx * m + (mx > 0)) >> 1) + dmx;
- s->mv[i][3][1] = ((my * m + (my > 0)) >> 1) + dmy + 1;
- } else {
- mb_type |= MB_TYPE_16x16;
-
- s->mv[i][2][0] = ((mx + (mx > 0)) >> 1) + dmx;
- s->mv[i][2][1] = ((my + (my > 0)) >> 1) + dmy;
- if(s->picture_structure == PICT_TOP_FIELD)
- s->mv[i][2][1]--;
- else
- s->mv[i][2][1]++;
- }
+ }
+ }
+ break;
+ case MT_DMV:
+ s->mv_type = MV_TYPE_DMV;
+ for(i=0;i<2;i++) {
+ if (USES_LIST(mb_type, i)) {
+ int dmx, dmy, mx, my, m;
+ mx = mpeg_decode_motion(s, s->mpeg_f_code[i][0],
+ s->last_mv[i][0][0]);
+ s->last_mv[i][0][0] = mx;
+ s->last_mv[i][1][0] = mx;
+ dmx = get_dmv(s);
+ my = mpeg_decode_motion(s, s->mpeg_f_code[i][1],
+ s->last_mv[i][0][1] >> 1);
+ dmy = get_dmv(s);
+
+
+ s->last_mv[i][0][1] = my<<1;
+ s->last_mv[i][1][1] = my<<1;
+
+ s->mv[i][0][0] = mx;
+ s->mv[i][0][1] = my;
+ s->mv[i][1][0] = mx;//not used
+ s->mv[i][1][1] = my;//not used
+
+ if (s->picture_structure == PICT_FRAME) {
+ mb_type |= MB_TYPE_16x16 | MB_TYPE_INTERLACED;
+
+ //m = 1 + 2 * s->top_field_first;
+ m = s->top_field_first ? 1 : 3;
+
+ /* top -> top pred */
+ s->mv[i][2][0] = ((mx * m + (mx > 0)) >> 1) + dmx;
+ s->mv[i][2][1] = ((my * m + (my > 0)) >> 1) + dmy - 1;
+ m = 4 - m;
+ s->mv[i][3][0] = ((mx * m + (mx > 0)) >> 1) + dmx;
+ s->mv[i][3][1] = ((my * m + (my > 0)) >> 1) + dmy + 1;
+ } else {
+ mb_type |= MB_TYPE_16x16;
+
+ s->mv[i][2][0] = ((mx + (mx > 0)) >> 1) + dmx;
+ s->mv[i][2][1] = ((my + (my > 0)) >> 1) + dmy;
+ if(s->picture_structure == PICT_TOP_FIELD)
+ s->mv[i][2][1]--;
+ else
+ s->mv[i][2][1]++;
}
- break;
- default:
- av_log(s->avctx, AV_LOG_ERROR, "00 motion_type at %d %d\n", s->mb_x, s->mb_y);
- return -1;
}
}
+ break;
+ default:
+ av_log(s->avctx, AV_LOG_ERROR, "00 motion_type at %d %d\n", s->mb_x, s->mb_y);
+ return -1;
}
}
if (HAS_CBP(mb_type)) {
s->dsp.clear_blocks(s->block[0]);
- if(!s->chroma_y_shift){
- s->dsp.clear_blocks(s->block[6]);
- }
-
cbp = get_vlc2(&s->gb, mb_pat_vlc.table, MB_PAT_VLC_BITS, 1);
- if (cbp < 0 || ((cbp == 0) && (s->chroma_format < 2)) ){
- av_log(s->avctx, AV_LOG_ERROR, "invalid cbp at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
if(mb_block_count > 6){
cbp<<= mb_block_count-6;
cbp |= get_bits(&s->gb, mb_block_count-6);
+ s->dsp.clear_blocks(s->block[6]);
+ }
+ if (cbp <= 0){
+ av_log(s->avctx, AV_LOG_ERROR, "invalid cbp at %d %d\n", s->mb_x, s->mb_y);
+ return -1;
}
-#ifdef HAVE_XVMC
- //on 1 we memcpy blocks in xvmcvideo
- if(s->avctx->xvmc_acceleration > 1){
- XVMC_pack_pblocks(s,cbp);
+ //if 1, we memcpy blocks in xvmcvideo
+ if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration > 1){
+ ff_xvmc_pack_pblocks(s,cbp);
if(s->swap_uv){
exchange_uv(s);
}
}
-#endif
if (s->codec_id == CODEC_ID_MPEG2VIDEO) {
if(s->flags2 & CODEC_FLAG2_FAST){
for(i=0;i<6;i++) {
if(cbp & 32) {
- mpeg2_fast_decode_block_non_intra(s, s->pblocks[i], i);
+ mpeg2_fast_decode_block_non_intra(s, *s->pblocks[i], i);
} else {
s->block_last_index[i] = -1;
}
for(i=0;i<mb_block_count;i++) {
if ( cbp & (1<<11) ) {
- if (mpeg2_decode_block_non_intra(s, s->pblocks[i], i) < 0)
+ if (mpeg2_decode_block_non_intra(s, *s->pblocks[i], i) < 0)
return -1;
} else {
s->block_last_index[i] = -1;
if(s->flags2 & CODEC_FLAG2_FAST){
for(i=0;i<6;i++) {
if (cbp & 32) {
- mpeg1_fast_decode_block_inter(s, s->pblocks[i], i);
+ mpeg1_fast_decode_block_inter(s, *s->pblocks[i], i);
} else {
s->block_last_index[i] = -1;
}
}else{
for(i=0;i<6;i++) {
if (cbp & 32) {
- if (mpeg1_decode_block_inter(s, s->pblocks[i], i) < 0)
+ if (mpeg1_decode_block_inter(s, *s->pblocks[i], i) < 0)
return -1;
} else {
s->block_last_index[i] = -1;
return 0;
}
-/* as h263, but only 17 codes */
+/* as H.263, but only 17 codes */
static int mpeg_decode_motion(MpegEncContext *s, int fcode, int pred)
{
int code, sign, val, l, shift;
return val;
}
-static inline int decode_dc(GetBitContext *gb, int component)
-{
- int code, diff;
-
- if (component == 0) {
- code = get_vlc2(gb, dc_lum_vlc.table, DC_VLC_BITS, 2);
- } else {
- code = get_vlc2(gb, dc_chroma_vlc.table, DC_VLC_BITS, 2);
- }
- if (code < 0){
- av_log(NULL, AV_LOG_ERROR, "invalid dc code at\n");
- return 0xffff;
- }
- if (code == 0) {
- diff = 0;
- } else {
- diff = get_xbits(gb, code);
- }
- return diff;
-}
-
-static inline int mpeg1_decode_block_intra(MpegEncContext *s,
+inline int ff_mpeg1_decode_block_intra(MpegEncContext *s,
DCTELEM *block,
int n)
{
int level, dc, diff, i, j, run;
int component;
- RLTable *rl = &rl_mpeg1;
+ RLTable *rl = &ff_rl_mpeg1;
uint8_t * const scantable= s->intra_scantable.permutated;
const uint16_t *quant_matrix= s->intra_matrix;
const int qscale= s->qscale;
- /* DC coef */
+ /* DC coefficient */
component = (n <= 3 ? 0 : n - 4 + 1);
diff = decode_dc(&s->gb, component);
if (diff >= 0xffff)
dc = s->last_dc[component];
dc += diff;
s->last_dc[component] = dc;
- block[0] = dc<<3;
+ block[0] = dc*quant_matrix[0];
dprintf(s->avctx, "dc=%d diff=%d\n", dc, diff);
i = 0;
{
OPEN_READER(re, &s->gb);
- /* now quantify & encode AC coefs */
+ /* now quantify & encode AC coefficients */
for(;;) {
UPDATE_CACHE(re, &s->gb);
GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0);
int n)
{
int level, i, j, run;
- RLTable *rl = &rl_mpeg1;
+ RLTable *rl = &ff_rl_mpeg1;
uint8_t * const scantable= s->intra_scantable.permutated;
const uint16_t *quant_matrix= s->inter_matrix;
const int qscale= s->qscale;
{
OPEN_READER(re, &s->gb);
i = -1;
- /* special case for the first coef. no need to add a second vlc table */
+ // special case for first coefficient, no need to add second VLC table
UPDATE_CACHE(re, &s->gb);
if (((int32_t)GET_CACHE(re, &s->gb)) < 0) {
level= (3*qscale*quant_matrix[0])>>5;
if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
goto end;
}
-
- /* now quantify & encode AC coefs */
+#if MIN_CACHE_BITS < 19
+ UPDATE_CACHE(re, &s->gb);
+#endif
+ /* now quantify & encode AC coefficients */
for(;;) {
GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0);
}
block[j] = level;
+#if MIN_CACHE_BITS < 19
+ UPDATE_CACHE(re, &s->gb);
+#endif
if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
break;
+#if MIN_CACHE_BITS >= 19
UPDATE_CACHE(re, &s->gb);
+#endif
}
end:
LAST_SKIP_BITS(re, &s->gb, 2);
static inline int mpeg1_fast_decode_block_inter(MpegEncContext *s, DCTELEM *block, int n)
{
int level, i, j, run;
- RLTable *rl = &rl_mpeg1;
+ RLTable *rl = &ff_rl_mpeg1;
uint8_t * const scantable= s->intra_scantable.permutated;
const int qscale= s->qscale;
{
OPEN_READER(re, &s->gb);
i = -1;
- /* special case for the first coef. no need to add a second vlc table */
+ // special case for first coefficient, no need to add second VLC table
UPDATE_CACHE(re, &s->gb);
if (((int32_t)GET_CACHE(re, &s->gb)) < 0) {
level= (3*qscale)>>1;
if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
goto end;
}
+#if MIN_CACHE_BITS < 19
+ UPDATE_CACHE(re, &s->gb);
+#endif
- /* now quantify & encode AC coefs */
+ /* now quantify & encode AC coefficients */
for(;;) {
GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0);
}
block[j] = level;
+#if MIN_CACHE_BITS < 19
+ UPDATE_CACHE(re, &s->gb);
+#endif
if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
break;
+#if MIN_CACHE_BITS >= 19
UPDATE_CACHE(re, &s->gb);
+#endif
}
end:
LAST_SKIP_BITS(re, &s->gb, 2);
int n)
{
int level, i, j, run;
- RLTable *rl = &rl_mpeg1;
+ RLTable *rl = &ff_rl_mpeg1;
uint8_t * const scantable= s->intra_scantable.permutated;
const uint16_t *quant_matrix;
const int qscale= s->qscale;
else
quant_matrix = s->chroma_inter_matrix;
- /* special case for the first coef. no need to add a second vlc table */
+ // special case for first coefficient, no need to add second VLC table
UPDATE_CACHE(re, &s->gb);
if (((int32_t)GET_CACHE(re, &s->gb)) < 0) {
level= (3*qscale*quant_matrix[0])>>5;
if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
goto end;
}
+#if MIN_CACHE_BITS < 19
+ UPDATE_CACHE(re, &s->gb);
+#endif
- /* now quantify & encode AC coefs */
+ /* now quantify & encode AC coefficients */
for(;;) {
GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0);
mismatch ^= level;
block[j] = level;
+#if MIN_CACHE_BITS < 19
+ UPDATE_CACHE(re, &s->gb);
+#endif
if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
break;
+#if MIN_CACHE_BITS >= 19
UPDATE_CACHE(re, &s->gb);
+#endif
}
end:
LAST_SKIP_BITS(re, &s->gb, 2);
int n)
{
int level, i, j, run;
- RLTable *rl = &rl_mpeg1;
+ RLTable *rl = &ff_rl_mpeg1;
uint8_t * const scantable= s->intra_scantable.permutated;
const int qscale= s->qscale;
OPEN_READER(re, &s->gb);
i = -1;
- /* special case for the first coef. no need to add a second vlc table */
+ // special case for first coefficient, no need to add second VLC table
UPDATE_CACHE(re, &s->gb);
if (((int32_t)GET_CACHE(re, &s->gb)) < 0) {
level= (3*qscale)>>1;
if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
goto end;
}
+#if MIN_CACHE_BITS < 19
+ UPDATE_CACHE(re, &s->gb);
+#endif
- /* now quantify & encode AC coefs */
+ /* now quantify & encode AC coefficients */
for(;;) {
GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0);
}
block[j] = level;
+#if MIN_CACHE_BITS < 19
+ UPDATE_CACHE(re, &s->gb);
+#endif
if(((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)
break;
+#if MIN_CACHE_BITS >=19
UPDATE_CACHE(re, &s->gb);
+#endif
}
end:
LAST_SKIP_BITS(re, &s->gb, 2);
const int qscale= s->qscale;
int mismatch;
- /* DC coef */
+ /* DC coefficient */
if (n < 4){
quant_matrix = s->intra_matrix;
component = 0;
mismatch = block[0] ^ 1;
i = 0;
if (s->intra_vlc_format)
- rl = &rl_mpeg2;
+ rl = &ff_rl_mpeg2;
else
- rl = &rl_mpeg1;
+ rl = &ff_rl_mpeg1;
{
OPEN_READER(re, &s->gb);
- /* now quantify & encode AC coefs */
+ /* now quantify & encode AC coefficients */
for(;;) {
UPDATE_CACHE(re, &s->gb);
GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0);
const uint16_t *quant_matrix;
const int qscale= s->qscale;
- /* DC coef */
+ /* DC coefficient */
if (n < 4){
quant_matrix = s->intra_matrix;
component = 0;
s->last_dc[component] = dc;
block[0] = dc << (3 - s->intra_dc_precision);
if (s->intra_vlc_format)
- rl = &rl_mpeg2;
+ rl = &ff_rl_mpeg2;
else
- rl = &rl_mpeg1;
+ rl = &ff_rl_mpeg1;
{
OPEN_READER(re, &s->gb);
- /* now quantify & encode AC coefs */
+ /* now quantify & encode AC coefficients */
for(;;) {
UPDATE_CACHE(re, &s->gb);
GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0);
int slice_count;
int swap_uv;//indicate VCR2
int save_aspect_info;
- int save_width, save_height;
+ int save_width, save_height, save_progressive_seq;
AVRational frame_rate_ext; ///< MPEG-2 specific framerate modificator
} Mpeg1Context;
-static int mpeg_decode_init(AVCodecContext *avctx)
+static av_cold int mpeg_decode_init(AVCodecContext *avctx)
{
Mpeg1Context *s = avctx->priv_data;
MpegEncContext *s2 = &s->mpeg_enc_ctx;
int i;
- //we need some parmutation to store
- //matrixes, until MPV_common_init()
- //set the real permutatuon
+ /* we need some permutation to store matrices,
+ * until MPV_common_init() sets the real permutation. */
for(i=0;i<64;i++)
s2->dsp.idct_permutation[i]=i;
s->mpeg_enc_ctx.avctx= avctx;
s->mpeg_enc_ctx.flags= avctx->flags;
s->mpeg_enc_ctx.flags2= avctx->flags2;
- common_init(&s->mpeg_enc_ctx);
- init_vlcs();
+ ff_mpeg12_common_init(&s->mpeg_enc_ctx);
+ ff_mpeg12_init_vlcs();
s->mpeg_enc_ctx_allocated = 0;
s->mpeg_enc_ctx.picture_number = 0;
s->repeat_field = 0;
s->mpeg_enc_ctx.codec_id= avctx->codec->id;
+ avctx->color_range= AVCOL_RANGE_MPEG;
+ if (avctx->codec->id == CODEC_ID_MPEG1VIDEO)
+ avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
+ else
+ avctx->chroma_sample_location = AVCHROMA_LOC_LEFT;
return 0;
}
}
}
-//Call this function when we know all parameters
-//it may be called in different places for mpeg1 and mpeg2
+static enum PixelFormat mpeg_get_pixelformat(AVCodecContext *avctx){
+ Mpeg1Context *s1 = avctx->priv_data;
+ MpegEncContext *s = &s1->mpeg_enc_ctx;
+
+ if(avctx->xvmc_acceleration)
+ return avctx->get_format(avctx,pixfmt_xvmc_mpg2_420);
+ else if(avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){
+ if(avctx->codec_id == CODEC_ID_MPEG1VIDEO)
+ return PIX_FMT_VDPAU_MPEG1;
+ else
+ return PIX_FMT_VDPAU_MPEG2;
+ }else{
+ if(s->chroma_format < 2)
+ return avctx->get_format(avctx,ff_hwaccel_pixfmt_list_420);
+ else if(s->chroma_format == 2)
+ return PIX_FMT_YUV422P;
+ else
+ return PIX_FMT_YUV444P;
+ }
+}
+
+/* Call this function when we know all parameters.
+ * It may be called in different places for MPEG-1 and MPEG-2. */
static int mpeg_decode_postinit(AVCodecContext *avctx){
Mpeg1Context *s1 = avctx->priv_data;
MpegEncContext *s = &s1->mpeg_enc_ctx;
s1->save_width != s->width ||
s1->save_height != s->height ||
s1->save_aspect_info != s->aspect_ratio_info||
+ s1->save_progressive_seq != s->progressive_sequence ||
0)
{
s1->save_aspect_info = s->aspect_ratio_info;
s1->save_width = s->width;
s1->save_height = s->height;
+ s1->save_progressive_seq = s->progressive_sequence;
- //low_delay may be forced, in this case we will have B frames
- //that behave like P frames
+ /* low_delay may be forced, in this case we will have B-frames
+ * that behave like P-frames. */
avctx->has_b_frames = !(s->low_delay);
- if(avctx->sub_id==1){//s->codec_id==avctx->codec_id==CODEC_ID
- //mpeg1 fps
+ assert((avctx->sub_id==1) == (avctx->codec_id==CODEC_ID_MPEG1VIDEO));
+ if(avctx->codec_id==CODEC_ID_MPEG1VIDEO){
+ //MPEG-1 fps
avctx->time_base.den= ff_frame_rate_tab[s->frame_rate_index].num;
avctx->time_base.num= ff_frame_rate_tab[s->frame_rate_index].den;
- //mpeg1 aspect
+ //MPEG-1 aspect
avctx->sample_aspect_ratio= av_d2q(
- 1.0/mpeg1_aspect[s->aspect_ratio_info], 255);
-
- }else{//mpeg2
- //mpeg2 fps
+ 1.0/ff_mpeg1_aspect[s->aspect_ratio_info], 255);
+ avctx->ticks_per_frame=1;
+ }else{//MPEG-2
+ //MPEG-2 fps
av_reduce(
&s->avctx->time_base.den,
&s->avctx->time_base.num,
- ff_frame_rate_tab[s->frame_rate_index].num * s1->frame_rate_ext.num,
+ ff_frame_rate_tab[s->frame_rate_index].num * s1->frame_rate_ext.num*2,
ff_frame_rate_tab[s->frame_rate_index].den * s1->frame_rate_ext.den,
1<<30);
- //mpeg2 aspect
+ avctx->ticks_per_frame=2;
+ //MPEG-2 aspect
if(s->aspect_ratio_info > 1){
- if( (s1->pan_scan.width == 0 )||(s1->pan_scan.height == 0) ){
+ //we ignore the spec here as reality does not match the spec, see for example
+ // res_change_ffmpeg_aspect.ts and sequence-display-aspect.mpg
+ if( (s1->pan_scan.width == 0 )||(s1->pan_scan.height == 0) || 1){
s->avctx->sample_aspect_ratio=
av_div_q(
- mpeg2_aspect[s->aspect_ratio_info],
+ ff_mpeg2_aspect[s->aspect_ratio_info],
(AVRational){s->width, s->height}
);
}else{
s->avctx->sample_aspect_ratio=
av_div_q(
- mpeg2_aspect[s->aspect_ratio_info],
+ ff_mpeg2_aspect[s->aspect_ratio_info],
(AVRational){s1->pan_scan.width, s1->pan_scan.height}
);
}
}else{
s->avctx->sample_aspect_ratio=
- mpeg2_aspect[s->aspect_ratio_info];
+ ff_mpeg2_aspect[s->aspect_ratio_info];
}
- }//mpeg2
+ }//MPEG-2
- if(avctx->xvmc_acceleration){
- avctx->pix_fmt = avctx->get_format(avctx,pixfmt_xvmc_mpg2_420);
- }else{
- if(s->chroma_format < 2){
- avctx->pix_fmt = avctx->get_format(avctx,pixfmt_yuv_420);
- }else
- if(s->chroma_format == 2){
- avctx->pix_fmt = avctx->get_format(avctx,pixfmt_yuv_422);
- }else
- if(s->chroma_format > 2){
- avctx->pix_fmt = avctx->get_format(avctx,pixfmt_yuv_444);
- }
- }
+ avctx->pix_fmt = mpeg_get_pixelformat(avctx);
+ avctx->hwaccel = ff_find_hwaccel(avctx->codec->id, avctx->pix_fmt);
//until then pix_fmt may be changed right after codec init
- if( avctx->pix_fmt == PIX_FMT_XVMC_MPEG2_IDCT )
+ if( avctx->pix_fmt == PIX_FMT_XVMC_MPEG2_IDCT ||
+ avctx->hwaccel ||
+ s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU )
if( avctx->idct_algo == FF_IDCT_AUTO )
avctx->idct_algo = FF_IDCT_SIMPLE;
- //quantization matrixes may need reordering
- //if dct permutation is changed
+ /* Quantization matrices may need reordering
+ * if DCT permutation is changed. */
memcpy(old_permutation,s->dsp.idct_permutation,64*sizeof(uint8_t));
if (MPV_common_init(s) < 0)
return -1;
vbv_delay= get_bits(&s->gb, 16);
- if (s->pict_type == P_TYPE || s->pict_type == B_TYPE) {
+ if (s->pict_type == FF_P_TYPE || s->pict_type == FF_B_TYPE) {
s->full_pel[0] = get_bits1(&s->gb);
f_code = get_bits(&s->gb, 3);
- if (f_code == 0 && avctx->error_resilience >= FF_ER_COMPLIANT)
+ if (f_code == 0 && avctx->error_recognition >= FF_ER_COMPLIANT)
return -1;
s->mpeg_f_code[0][0] = f_code;
s->mpeg_f_code[0][1] = f_code;
}
- if (s->pict_type == B_TYPE) {
+ if (s->pict_type == FF_B_TYPE) {
s->full_pel[1] = get_bits1(&s->gb);
f_code = get_bits(&s->gb, 3);
- if (f_code == 0 && avctx->error_resilience >= FF_ER_COMPLIANT)
+ if (f_code == 0 && avctx->error_recognition >= FF_ER_COMPLIANT)
return -1;
s->mpeg_f_code[1][0] = f_code;
s->mpeg_f_code[1][1] = f_code;
}
s->current_picture.pict_type= s->pict_type;
- s->current_picture.key_frame= s->pict_type == I_TYPE;
+ s->current_picture.key_frame= s->pict_type == FF_I_TYPE;
if(avctx->debug & FF_DEBUG_PICT_INFO)
av_log(avctx, AV_LOG_DEBUG, "vbv_delay %d, ref %d type:%d\n", vbv_delay, ref, s->pict_type);
int horiz_size_ext, vert_size_ext;
int bit_rate_ext;
- skip_bits(&s->gb, 1); /* profil and level esc*/
+ skip_bits(&s->gb, 1); /* profile and level esc*/
s->avctx->profile= get_bits(&s->gb, 3);
s->avctx->level= get_bits(&s->gb, 4);
s->progressive_sequence = get_bits1(&s->gb); /* progressive_sequence */
dprintf(s->avctx, "sequence extension\n");
s->codec_id= s->avctx->codec_id= CODEC_ID_MPEG2VIDEO;
- s->avctx->sub_id = 2; /* indicates mpeg2 found */
+ s->avctx->sub_id = 2; /* indicates MPEG-2 found */
if(s->avctx->debug & FF_DEBUG_PICT_INFO)
av_log(s->avctx, AV_LOG_DEBUG, "profile: %d, level: %d vbv buffer: %d, bitrate:%d\n",
skip_bits(&s->gb, 3); /* video format */
color_description= get_bits1(&s->gb);
if(color_description){
- skip_bits(&s->gb, 8); /* color primaries */
- skip_bits(&s->gb, 8); /* transfer_characteristics */
- skip_bits(&s->gb, 8); /* matrix_coefficients */
+ s->avctx->color_primaries= get_bits(&s->gb, 8);
+ s->avctx->color_trc = get_bits(&s->gb, 8);
+ s->avctx->colorspace = get_bits(&s->gb, 8);
}
w= get_bits(&s->gb, 14);
skip_bits(&s->gb, 1); //marker
);
}
-static void mpeg_decode_quant_matrix_extension(MpegEncContext *s)
-{
- int i, v, j;
-
- dprintf(s->avctx, "matrix extension\n");
+static int load_matrix(MpegEncContext *s, uint16_t matrix0[64], uint16_t matrix1[64], int intra){
+ int i;
- if (get_bits1(&s->gb)) {
- for(i=0;i<64;i++) {
- v = get_bits(&s->gb, 8);
- j= s->dsp.idct_permutation[ ff_zigzag_direct[i] ];
- s->intra_matrix[j] = v;
- s->chroma_intra_matrix[j] = v;
- }
- }
- if (get_bits1(&s->gb)) {
- for(i=0;i<64;i++) {
- v = get_bits(&s->gb, 8);
- j= s->dsp.idct_permutation[ ff_zigzag_direct[i] ];
- s->inter_matrix[j] = v;
- s->chroma_inter_matrix[j] = v;
- }
- }
- if (get_bits1(&s->gb)) {
- for(i=0;i<64;i++) {
- v = get_bits(&s->gb, 8);
- j= s->dsp.idct_permutation[ ff_zigzag_direct[i] ];
- s->chroma_intra_matrix[j] = v;
+ for(i=0; i<64; i++) {
+ int j = s->dsp.idct_permutation[ ff_zigzag_direct[i] ];
+ int v = get_bits(&s->gb, 8);
+ if(v==0){
+ av_log(s->avctx, AV_LOG_ERROR, "matrix damaged\n");
+ return -1;
}
- }
- if (get_bits1(&s->gb)) {
- for(i=0;i<64;i++) {
- v = get_bits(&s->gb, 8);
- j= s->dsp.idct_permutation[ ff_zigzag_direct[i] ];
- s->chroma_inter_matrix[j] = v;
+ if(intra && i==0 && v!=8){
+ av_log(s->avctx, AV_LOG_ERROR, "intra matrix invalid, ignoring\n");
+ v= 8; // needed by pink.mpg / issue1046
}
+ matrix0[j] = v;
+ if(matrix1)
+ matrix1[j] = v;
}
+ return 0;
+}
+
+static void mpeg_decode_quant_matrix_extension(MpegEncContext *s)
+{
+ dprintf(s->avctx, "matrix extension\n");
+
+ if(get_bits1(&s->gb)) load_matrix(s, s->chroma_intra_matrix, s->intra_matrix, 1);
+ if(get_bits1(&s->gb)) load_matrix(s, s->chroma_inter_matrix, s->inter_matrix, 0);
+ if(get_bits1(&s->gb)) load_matrix(s, s->chroma_intra_matrix, NULL , 1);
+ if(get_bits1(&s->gb)) load_matrix(s, s->chroma_inter_matrix, NULL , 0);
}
-static void mpeg_decode_picture_coding_extension(MpegEncContext *s)
+static void mpeg_decode_picture_coding_extension(Mpeg1Context *s1)
{
+ MpegEncContext *s= &s1->mpeg_enc_ctx;
+
s->full_pel[0] = s->full_pel[1] = 0;
s->mpeg_f_code[0][0] = get_bits(&s->gb, 4);
s->mpeg_f_code[0][1] = get_bits(&s->gb, 4);
s->mpeg_f_code[1][0] = get_bits(&s->gb, 4);
s->mpeg_f_code[1][1] = get_bits(&s->gb, 4);
+ if(!s->pict_type && s1->mpeg_enc_ctx_allocated){
+ av_log(s->avctx, AV_LOG_ERROR, "Missing picture start code, guessing missing values\n");
+ if(s->mpeg_f_code[1][0] == 15 && s->mpeg_f_code[1][1]==15){
+ if(s->mpeg_f_code[0][0] == 15 && s->mpeg_f_code[0][1] == 15)
+ s->pict_type= FF_I_TYPE;
+ else
+ s->pict_type= FF_P_TYPE;
+ }else
+ s->pict_type= FF_B_TYPE;
+ s->current_picture.pict_type= s->pict_type;
+ s->current_picture.key_frame= s->pict_type == FF_I_TYPE;
+ s->first_slice= 1;
+ }
s->intra_dc_precision = get_bits(&s->gb, 2);
s->picture_structure = get_bits(&s->gb, 2);
s->top_field_first = get_bits1(&s->gb);
mpeg_decode_picture_display_extension(s1);
break;
case 0x8:
- mpeg_decode_picture_coding_extension(s);
+ mpeg_decode_picture_coding_extension(s1);
break;
}
}
static void exchange_uv(MpegEncContext *s){
- short * tmp = s->pblocks[4];
+ DCTELEM (*tmp)[64];
+
+ tmp = s->pblocks[4];
s->pblocks[4] = s->pblocks[5];
s->pblocks[5] = tmp;
}
-static int mpeg_field_start(MpegEncContext *s){
+static int mpeg_field_start(MpegEncContext *s, const uint8_t *buf, int buf_size){
AVCodecContext *avctx= s->avctx;
Mpeg1Context *s1 = (Mpeg1Context*)s;
}
}
}
-#ifdef HAVE_XVMC
+
+ if (avctx->hwaccel) {
+ if (avctx->hwaccel->start_frame(avctx, buf, buf_size) < 0)
+ return -1;
+ }
+
// MPV_frame_start will call this function too,
// but we need to call it on every field
- if(s->avctx->xvmc_acceleration)
- XVMC_field_start(s,avctx);
-#endif
+ if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration)
+ if(ff_xvmc_field_start(s,avctx) < 0)
+ return -1;
return 0;
}
{
MpegEncContext *s = &s1->mpeg_enc_ctx;
AVCodecContext *avctx= s->avctx;
- int ret;
const int field_pic= s->picture_structure != PICT_FRAME;
const int lowres= s->avctx->lowres;
s->mb_x=0;
+ if (avctx->hwaccel) {
+ const uint8_t *buf_end, *buf_start = *buf - 4; /* include start_code */
+ int start_code = -1;
+ buf_end = ff_find_start_code(buf_start + 2, *buf + buf_size, &start_code);
+ if (buf_end < *buf + buf_size)
+ buf_end -= 4;
+ s->mb_y = mb_y;
+ if (avctx->hwaccel->decode_slice(avctx, buf_start, buf_end - buf_start) < 0)
+ return DECODE_SLICE_ERROR;
+ *buf = buf_end;
+ return DECODE_SLICE_OK;
+ }
+
for(;;) {
int code = get_vlc2(&s->gb, mbincr_vlc.table, MBINCR_VLC_BITS, 2);
if (code < 0){
if(s->avctx->debug&FF_DEBUG_PICT_INFO){
av_log(s->avctx, AV_LOG_DEBUG, "qp:%d fc:%2d%2d%2d%2d %s %s %s %s %s dc:%d pstruct:%d fdct:%d cmv:%d qtype:%d ivlc:%d rff:%d %s\n",
s->qscale, s->mpeg_f_code[0][0],s->mpeg_f_code[0][1],s->mpeg_f_code[1][0],s->mpeg_f_code[1][1],
- s->pict_type == I_TYPE ? "I" : (s->pict_type == P_TYPE ? "P" : (s->pict_type == B_TYPE ? "B" : "S")),
+ s->pict_type == FF_I_TYPE ? "I" : (s->pict_type == FF_P_TYPE ? "P" : (s->pict_type == FF_B_TYPE ? "B" : "S")),
s->progressive_sequence ? "ps" :"", s->progressive_frame ? "pf" : "", s->alternate_scan ? "alt" :"", s->top_field_first ? "top" :"",
s->intra_dc_precision, s->picture_structure, s->frame_pred_frame_dct, s->concealment_motion_vectors,
s->q_scale_type, s->intra_vlc_format, s->repeat_first_field, s->chroma_420_type ? "420" :"");
}
for(;;) {
-#ifdef HAVE_XVMC
- //one 1 we memcpy blocks in xvmcvideo
- if(s->avctx->xvmc_acceleration > 1)
- XVMC_init_block(s);//set s->block
-#endif
-
- ret = mpeg_decode_mb(s, s->block);
- s->chroma_qscale= s->qscale;
+ //If 1, we memcpy blocks in xvmcvideo.
+ if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration > 1)
+ ff_xvmc_init_block(s);//set s->block
- dprintf(s->avctx, "ret=%d\n", ret);
- if (ret < 0)
+ if(mpeg_decode_mb(s, s->block) < 0)
return -1;
if(s->current_picture.motion_val[0] && !s->encoding){ //note motion_val is normally NULL unless we want to extract the MVs
for(i=0; i<2; i++){
for(dir=0; dir<2; dir++){
- if (s->mb_intra || (dir==1 && s->pict_type != B_TYPE)) {
+ if (s->mb_intra || (dir==1 && s->pict_type != FF_B_TYPE)) {
motion_x = motion_y = 0;
}else if (s->mv_type == MV_TYPE_16X16 || (s->mv_type == MV_TYPE_FIELD && field_pic)){
motion_x = s->mv[dir][0][0];
}
s->dest[0] += 16 >> lowres;
- s->dest[1] += 16 >> (s->chroma_x_shift + lowres);
- s->dest[2] += 16 >> (s->chroma_x_shift + lowres);
+ s->dest[1] +=(16 >> lowres) >> s->chroma_x_shift;
+ s->dest[2] +=(16 >> lowres) >> s->chroma_x_shift;
MPV_decode_mb(s, s->block);
if(s->mb_y<<field_pic >= s->mb_height){
int left= s->gb.size_in_bits - get_bits_count(&s->gb);
- int is_d10= s->chroma_format==2 && s->pict_type==I_TYPE && avctx->profile==0 && avctx->level==5
+ int is_d10= s->chroma_format==2 && s->pict_type==FF_I_TYPE && avctx->profile==0 && avctx->level==5
&& s->intra_dc_precision == 2 && s->q_scale_type == 1 && s->alternate_scan == 0
&& s->progressive_frame == 0 /* vbv_delay == 0xBBB || 0xE10*/;
if(left < 0 || (left && show_bits(&s->gb, FFMIN(left, 23)) && !is_d10)
- || (avctx->error_resilience >= FF_ER_AGGRESSIVE && left>8)){
+ || (avctx->error_recognition >= FF_ER_AGGRESSIVE && left>8)){
av_log(avctx, AV_LOG_ERROR, "end mismatch left=%d %0X\n", left, show_bits(&s->gb, FFMIN(left, 23)));
return -1;
}else
/* skip mb handling */
if (s->mb_skip_run == -1) {
- /* read again increment */
+ /* read increment again */
s->mb_skip_run = 0;
for(;;) {
int code = get_vlc2(&s->gb, mbincr_vlc.table, MBINCR_VLC_BITS, 2);
break;
}
}
+ if(s->mb_skip_run){
+ int i;
+ if(s->pict_type == FF_I_TYPE){
+ av_log(s->avctx, AV_LOG_ERROR, "skipped MB in I frame at %d %d\n", s->mb_x, s->mb_y);
+ return -1;
+ }
+
+ /* skip mb */
+ s->mb_intra = 0;
+ for(i=0;i<12;i++)
+ s->block_last_index[i] = -1;
+ if(s->picture_structure == PICT_FRAME)
+ s->mv_type = MV_TYPE_16X16;
+ else
+ s->mv_type = MV_TYPE_FIELD;
+ if (s->pict_type == FF_P_TYPE) {
+ /* if P type, zero motion vector is implied */
+ s->mv_dir = MV_DIR_FORWARD;
+ s->mv[0][0][0] = s->mv[0][0][1] = 0;
+ s->last_mv[0][0][0] = s->last_mv[0][0][1] = 0;
+ s->last_mv[0][1][0] = s->last_mv[0][1][1] = 0;
+ s->field_select[0][0]= s->picture_structure - 1;
+ } else {
+ /* if B type, reuse previous vectors and directions */
+ s->mv[0][0][0] = s->last_mv[0][0][0];
+ s->mv[0][0][1] = s->last_mv[0][0][1];
+ s->mv[1][0][0] = s->last_mv[1][0][0];
+ s->mv[1][0][1] = s->last_mv[1][0][1];
+ }
+ }
}
}
eos: // end of slice
- *buf += get_bits_count(&s->gb)/8 - 1;
+ *buf += (get_bits_count(&s->gb)-1)/8;
//printf("y %d %d %d %d\n", s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y);
return 0;
}
static int slice_decode_thread(AVCodecContext *c, void *arg){
- MpegEncContext *s= arg;
+ MpegEncContext *s= *(void**)arg;
const uint8_t *buf= s->gb.buffer;
int mb_y= s->start_mb_y;
}
/**
- * handles slice ends.
- * @return 1 if it seems to be the last slice of
+ * Handles slice ends.
+ * @return 1 if it seems to be the last slice
*/
static int slice_end(AVCodecContext *avctx, AVFrame *pict)
{
if (!s1->mpeg_enc_ctx_allocated || !s->current_picture_ptr)
return 0;
-#ifdef HAVE_XVMC
- if(s->avctx->xvmc_acceleration)
- XVMC_field_end(s);
-#endif
+ if (s->avctx->hwaccel) {
+ if (s->avctx->hwaccel->end_frame(s->avctx) < 0)
+ av_log(avctx, AV_LOG_ERROR, "hardware accelerator failed to decode picture\n");
+ }
+
+ if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration)
+ ff_xvmc_field_end(s);
+
/* end of slice reached */
if (/*s->mb_y<<field_pic == s->mb_height &&*/ !s->first_field) {
/* end of image */
MPV_frame_end(s);
- if (s->pict_type == B_TYPE || s->low_delay) {
+ if (s->pict_type == FF_B_TYPE || s->low_delay) {
*pict= *(AVFrame*)s->current_picture_ptr;
ff_print_debug_info(s, pict);
} else {
s->picture_number++;
- /* latency of 1 frame for I and P frames */
+ /* latency of 1 frame for I- and P-frames */
/* XXX: use another variable than picture_number */
if (s->last_picture_ptr != NULL) {
*pict= *(AVFrame*)s->last_picture_ptr;
width = get_bits(&s->gb, 12);
height = get_bits(&s->gb, 12);
- if (width <= 0 || height <= 0 ||
- (width % 2) != 0 || (height % 2) != 0)
+ if (width <= 0 || height <= 0)
return -1;
s->aspect_ratio_info= get_bits(&s->gb, 4);
- if (s->aspect_ratio_info == 0)
- return -1;
+ if (s->aspect_ratio_info == 0) {
+ av_log(avctx, AV_LOG_ERROR, "aspect ratio has forbidden 0 value\n");
+ if (avctx->error_recognition >= FF_ER_COMPLIANT)
+ return -1;
+ }
s->frame_rate_index = get_bits(&s->gb, 4);
if (s->frame_rate_index == 0 || s->frame_rate_index > 13)
return -1;
/* get matrix */
if (get_bits1(&s->gb)) {
- for(i=0;i<64;i++) {
- v = get_bits(&s->gb, 8);
- if(v==0){
- av_log(s->avctx, AV_LOG_ERROR, "intra matrix damaged\n");
- return -1;
- }
- j = s->dsp.idct_permutation[ ff_zigzag_direct[i] ];
- s->intra_matrix[j] = v;
- s->chroma_intra_matrix[j] = v;
- }
-#ifdef DEBUG
- dprintf(s->avctx, "intra matrix present\n");
- for(i=0;i<64;i++)
- dprintf(s->avctx, " %d", s->intra_matrix[s->dsp.idct_permutation[i]]);
- dprintf(s->avctx, "\n");
-#endif
+ load_matrix(s, s->chroma_intra_matrix, s->intra_matrix, 1);
} else {
for(i=0;i<64;i++) {
j = s->dsp.idct_permutation[i];
}
}
if (get_bits1(&s->gb)) {
- for(i=0;i<64;i++) {
- v = get_bits(&s->gb, 8);
- if(v==0){
- av_log(s->avctx, AV_LOG_ERROR, "inter matrix damaged\n");
- return -1;
- }
- j = s->dsp.idct_permutation[ ff_zigzag_direct[i] ];
- s->inter_matrix[j] = v;
- s->chroma_inter_matrix[j] = v;
- }
-#ifdef DEBUG
- dprintf(s->avctx, "non intra matrix present\n");
- for(i=0;i<64;i++)
- dprintf(s->avctx, " %d", s->inter_matrix[s->dsp.idct_permutation[i]]);
- dprintf(s->avctx, "\n");
-#endif
+ load_matrix(s, s->chroma_inter_matrix, s->inter_matrix, 0);
} else {
for(i=0;i<64;i++) {
int j= s->dsp.idct_permutation[i];
return -1;
}
- /* we set mpeg2 parameters so that it emulates mpeg1 */
+ /* we set MPEG-2 parameters so that it emulates MPEG-1 */
s->progressive_sequence = 1;
s->progressive_frame = 1;
s->picture_structure = PICT_FRAME;
s->frame_pred_frame_dct = 1;
s->chroma_format = 1;
s->codec_id= s->avctx->codec_id= CODEC_ID_MPEG1VIDEO;
- avctx->sub_id = 1; /* indicates mpeg1 */
+ avctx->sub_id = 1; /* indicates MPEG-1 */
s->out_format = FMT_MPEG1;
- s->swap_uv = 0;//AFAIK VCR2 don't have SEQ_HEADER
+ s->swap_uv = 0;//AFAIK VCR2 does not have SEQ_HEADER
if(s->flags & CODEC_FLAG_LOW_DELAY) s->low_delay=1;
if(s->avctx->debug & FF_DEBUG_PICT_INFO)
MpegEncContext *s = &s1->mpeg_enc_ctx;
int i, v;
- /* start new mpeg1 context decoding */
+ /* start new MPEG-1 context decoding */
s->out_format = FMT_MPEG1;
if (s1->mpeg_enc_ctx_allocated) {
MPV_common_end(s);
avctx->has_b_frames= 0; //true?
s->low_delay= 1;
- if(avctx->xvmc_acceleration){
- avctx->pix_fmt = avctx->get_format(avctx,pixfmt_xvmc_mpg2_420);
- }else{
- avctx->pix_fmt = avctx->get_format(avctx,pixfmt_yuv_420);
- }
+ avctx->pix_fmt = mpeg_get_pixelformat(avctx);
+ avctx->hwaccel = ff_find_hwaccel(avctx->codec->id, avctx->pix_fmt);
- if( avctx->pix_fmt == PIX_FMT_XVMC_MPEG2_IDCT )
+ if( avctx->pix_fmt == PIX_FMT_XVMC_MPEG2_IDCT || avctx->hwaccel ||
+ s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU )
if( avctx->idct_algo == FF_IDCT_AUTO )
avctx->idct_algo = FF_IDCT_SIMPLE;
s->frame_pred_frame_dct = 1;
s->chroma_format = 1;
s->codec_id= s->avctx->codec_id= CODEC_ID_MPEG2VIDEO;
- avctx->sub_id = 2; /* indicates mpeg2 */
+ avctx->sub_id = 2; /* indicates MPEG-2 */
return 0;
}
int drop_frame_flag;
int time_code_hours, time_code_minutes;
int time_code_seconds, time_code_pictures;
- int broken_link;
+ int closed_gop, broken_link;
init_get_bits(&s->gb, buf, buf_size*8);
time_code_seconds = get_bits(&s->gb,6);
time_code_pictures = get_bits(&s->gb,6);
+ closed_gop = get_bits1(&s->gb);
/*broken_link indicate that after editing the
reference frames of the first B-Frames after GOP I-Frame
are missing (open gop)*/
broken_link = get_bits1(&s->gb);
if(s->avctx->debug & FF_DEBUG_PICT_INFO)
- av_log(s->avctx, AV_LOG_DEBUG, "GOP (%2d:%02d:%02d.[%02d]) broken_link=%d\n",
+ av_log(s->avctx, AV_LOG_DEBUG, "GOP (%2d:%02d:%02d.[%02d]) closed_gop=%d broken_link=%d\n",
time_code_hours, time_code_minutes, time_code_seconds,
- time_code_pictures, broken_link);
+ time_code_pictures, closed_gop, broken_link);
}
/**
- * finds the end of the current frame in the bitstream.
+ * Finds the end of the current frame in the bitstream.
* @return the position of the first byte of the next frame, or -1
*/
-int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size)
+int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s)
{
int i;
uint32_t state= pc->state;
- i=0;
- if(!pc->frame_start_found){
- for(i=0; i<buf_size; i++){
+ /* EOF considered as end of frame */
+ if (buf_size == 0)
+ return 0;
+
+/*
+ 0 frame start -> 1/4
+ 1 first_SEQEXT -> 0/2
+ 2 first field start -> 3/0
+ 3 second_SEQEXT -> 2/0
+ 4 searching end
+*/
+
+ for(i=0; i<buf_size; i++){
+ assert(pc->frame_start_found>=0 && pc->frame_start_found<=4);
+ if(pc->frame_start_found&1){
+ if(state == EXT_START_CODE && (buf[i]&0xF0) != 0x80)
+ pc->frame_start_found--;
+ else if(state == EXT_START_CODE+2){
+ if((buf[i]&3) == 3) pc->frame_start_found= 0;
+ else pc->frame_start_found= (pc->frame_start_found+1)&3;
+ }
+ state++;
+ }else{
i= ff_find_start_code(buf+i, buf+buf_size, &state) - buf - 1;
- if(state >= SLICE_MIN_START_CODE && state <= SLICE_MAX_START_CODE){
+ if(pc->frame_start_found==0 && state >= SLICE_MIN_START_CODE && state <= SLICE_MAX_START_CODE){
i++;
- pc->frame_start_found=1;
- break;
+ pc->frame_start_found=4;
}
- }
- }
-
- if(pc->frame_start_found){
- /* EOF considered as end of frame */
- if (buf_size == 0)
- return 0;
- for(; i<buf_size; i++){
- i= ff_find_start_code(buf+i, buf+buf_size, &state) - buf - 1;
- if((state&0xFFFFFF00) == 0x100){
+ if(state == SEQ_END_CODE){
+ pc->state=-1;
+ return i+1;
+ }
+ if(pc->frame_start_found==2 && state == SEQ_START_CODE)
+ pc->frame_start_found= 0;
+ if(pc->frame_start_found<4 && state == EXT_START_CODE)
+ pc->frame_start_found++;
+ if(pc->frame_start_found == 4 && (state&0xFFFFFF00) == 0x100){
if(state < SLICE_MIN_START_CODE || state > SLICE_MAX_START_CODE){
pc->frame_start_found=0;
pc->state=-1;
return i-3;
}
}
+ if(s && state == PICTURE_START_CODE){
+ ff_fetch_timestamp(s, i-4, 1);
+ }
}
}
pc->state= state;
return END_NOT_FOUND;
}
+static int decode_chunks(AVCodecContext *avctx,
+ AVFrame *picture, int *data_size,
+ const uint8_t *buf, int buf_size);
+
/* handle buffering and image synchronisation */
static int mpeg_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
- uint8_t *buf, int buf_size)
+ AVPacket *avpkt)
{
+ const uint8_t *buf = avpkt->data;
+ int buf_size = avpkt->size;
Mpeg1Context *s = avctx->priv_data;
- const uint8_t *buf_end;
- const uint8_t *buf_ptr;
- uint32_t start_code;
- int ret, input_size;
AVFrame *picture = data;
MpegEncContext *s2 = &s->mpeg_enc_ctx;
dprintf(avctx, "fill_buffer\n");
- if (buf_size == 0) {
+ if (buf_size == 0 || (buf_size == 4 && AV_RB32(buf) == SEQ_END_CODE)) {
/* special case for last picture */
if (s2->low_delay==0 && s2->next_picture_ptr) {
*picture= *(AVFrame*)s2->next_picture_ptr;
*data_size = sizeof(AVFrame);
}
- return 0;
+ return buf_size;
}
if(s2->flags&CODEC_FLAG_TRUNCATED){
- int next= ff_mpeg1_find_frame_end(&s2->parse_context, buf, buf_size);
+ int next= ff_mpeg1_find_frame_end(&s2->parse_context, buf, buf_size, NULL);
if( ff_combine_frame(&s2->parse_context, next, (const uint8_t **)&buf, &buf_size) < 0 )
return buf_size;
}
- buf_ptr = buf;
- buf_end = buf + buf_size;
-
#if 0
if (s->repeat_field % 2 == 1) {
s->repeat_field++;
}
#endif
- if(s->mpeg_enc_ctx_allocated==0 && avctx->codec_tag == ff_get_fourcc("VCR2"))
+ if(s->mpeg_enc_ctx_allocated==0 && avctx->codec_tag == AV_RL32("VCR2"))
vcr2_init_sequence(avctx);
s->slice_count= 0;
+ if(avctx->extradata && !avctx->frame_number)
+ decode_chunks(avctx, picture, data_size, avctx->extradata, avctx->extradata_size);
+
+ return decode_chunks(avctx, picture, data_size, buf, buf_size);
+}
+
+static int decode_chunks(AVCodecContext *avctx,
+ AVFrame *picture, int *data_size,
+ const uint8_t *buf, int buf_size)
+{
+ Mpeg1Context *s = avctx->priv_data;
+ MpegEncContext *s2 = &s->mpeg_enc_ctx;
+ const uint8_t *buf_ptr = buf;
+ const uint8_t *buf_end = buf + buf_size;
+ int ret, input_size;
+
for(;;) {
- /* find start next code */
- start_code = -1;
+ /* find next start code */
+ uint32_t start_code = -1;
buf_ptr = ff_find_start_code(buf_ptr,buf_end, &start_code);
if (start_code > 0x1ff){
- if(s2->pict_type != B_TYPE || avctx->skip_frame <= AVDISCARD_DEFAULT){
+ if(s2->pict_type != FF_B_TYPE || avctx->skip_frame <= AVDISCARD_DEFAULT){
if(avctx->thread_count > 1){
int i;
- avctx->execute(avctx, slice_decode_thread, (void**)&(s2->thread_context[0]), NULL, s->slice_count);
+ avctx->execute(avctx, slice_decode_thread, (void**)&(s2->thread_context[0]), NULL, s->slice_count, sizeof(void*));
for(i=0; i<s->slice_count; i++)
s2->error_count += s2->thread_context[i]->error_count;
}
+
+ if (CONFIG_MPEG_VDPAU_DECODER && avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
+ ff_vdpau_mpeg_picture_complete(s2, buf, buf_size, s->slice_count);
+
if (slice_end(avctx, picture)) {
if(s2->last_picture_ptr || s2->low_delay) //FIXME merge with the stuff in mpeg_decode_slice
*data_size = sizeof(AVPicture);
}
}
+ s2->pict_type= 0;
return FFMAX(0, buf_ptr - buf - s2->parse_context.last_index);
}
input_size = buf_end - buf_ptr;
if(avctx->debug & FF_DEBUG_STARTCODE){
- av_log(avctx, AV_LOG_DEBUG, "%3X at %zd left %d\n", start_code, buf_ptr-buf, input_size);
+ av_log(avctx, AV_LOG_DEBUG, "%3X at %td left %d\n", start_code, buf_ptr-buf, input_size);
}
/* prepare data for next start code */
break;
case PICTURE_START_CODE:
- /* we have a complete image : we try to decompress it */
- mpeg1_decode_picture(avctx,
- buf_ptr, input_size);
+ /* we have a complete image: we try to decompress it */
+ if(mpeg1_decode_picture(avctx,
+ buf_ptr, input_size) < 0)
+ s2->pict_type=0;
break;
case EXT_START_CODE:
mpeg_decode_extension(avctx,
if(s2->last_picture_ptr==NULL){
/* Skip B-frames if we do not have reference frames. */
- if(s2->pict_type==B_TYPE) break;
- /* Skip P-frames if we do not have reference frame no valid header. */
-// if(s2->pict_type==P_TYPE && s2->first_field && !s2->first_slice) break;
+ if(s2->pict_type==FF_B_TYPE) break;
+ }
+ if(s2->next_picture_ptr==NULL){
+ /* Skip P-frames if we do not have a reference frame or we have an invalid header. */
+ if(s2->pict_type==FF_P_TYPE && (s2->first_field || s2->picture_structure==PICT_FRAME)) break;
}
/* Skip B-frames if we are in a hurry. */
- if(avctx->hurry_up && s2->pict_type==B_TYPE) break;
- if( (avctx->skip_frame >= AVDISCARD_NONREF && s2->pict_type==B_TYPE)
- ||(avctx->skip_frame >= AVDISCARD_NONKEY && s2->pict_type!=I_TYPE)
+ if(avctx->hurry_up && s2->pict_type==FF_B_TYPE) break;
+ if( (avctx->skip_frame >= AVDISCARD_NONREF && s2->pict_type==FF_B_TYPE)
+ ||(avctx->skip_frame >= AVDISCARD_NONKEY && s2->pict_type!=FF_I_TYPE)
|| avctx->skip_frame >= AVDISCARD_ALL)
break;
/* Skip everything if we are in a hurry>=5. */
break;
}
+ if(!s2->pict_type){
+ av_log(avctx, AV_LOG_ERROR, "Missing picture start code\n");
+ break;
+ }
+
if(s2->first_slice){
s2->first_slice=0;
- if(mpeg_field_start(s2) < 0)
+ if(mpeg_field_start(s2, buf, buf_size) < 0)
return -1;
- }
+ }
if(!s2->current_picture_ptr){
- av_log(avctx, AV_LOG_ERROR, "current_picture not initalized\n");
+ av_log(avctx, AV_LOG_ERROR, "current_picture not initialized\n");
return -1;
}
+ if (avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) {
+ s->slice_count++;
+ break;
+ }
+
if(avctx->thread_count > 1){
int threshold= (s2->mb_height*s->slice_count + avctx->thread_count/2) / avctx->thread_count;
if(threshold <= mb_y){
init_get_bits(&thread_context->gb, buf_ptr, input_size*8);
s->slice_count++;
}
- buf_ptr += 2; //FIXME add minimum num of bytes per slice
+ buf_ptr += 2; //FIXME add minimum number of bytes per slice
}else{
ret = mpeg_decode_slice(s, mb_y, &buf_ptr, input_size);
emms_c();
mpeg_decode_frame,
CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
.flush= ff_mpeg_flush,
+ .long_name= NULL_IF_CONFIG_SMALL("MPEG-1 video"),
};
AVCodec mpeg2video_decoder = {
mpeg_decode_frame,
CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
.flush= ff_mpeg_flush,
+ .long_name= NULL_IF_CONFIG_SMALL("MPEG-2 video"),
};
//legacy decoder
mpeg_decode_frame,
CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
.flush= ff_mpeg_flush,
+ .long_name= NULL_IF_CONFIG_SMALL("MPEG-1 video"),
};
-#ifdef CONFIG_ENCODERS
-
-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, -1},
- .capabilities= CODEC_CAP_DELAY,
-};
-
-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, -1},
- .capabilities= CODEC_CAP_DELAY,
-};
-#endif
-
-#ifdef HAVE_XVMC
-static int mpeg_mc_decode_init(AVCodecContext *avctx){
- Mpeg1Context *s;
-
+#if CONFIG_MPEG_XVMC_DECODER
+static av_cold int mpeg_mc_decode_init(AVCodecContext *avctx){
if( avctx->thread_count > 1)
return -1;
if( !(avctx->slice_flags & SLICE_FLAG_CODED_ORDER) )
dprintf(avctx, "mpeg12.c: XvMC decoder will work better if SLICE_FLAG_ALLOW_FIELD is set\n");
}
mpeg_decode_init(avctx);
- s = avctx->priv_data;
avctx->pix_fmt = PIX_FMT_XVMC_MPEG2_IDCT;
avctx->xvmc_acceleration = 2;//2 - the blocks are packed!
mpeg_decode_frame,
CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED| CODEC_CAP_HWACCEL | CODEC_CAP_DELAY,
.flush= ff_mpeg_flush,
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-1/2 video XvMC (X-Video Motion Compensation)"),
+};
+
+#endif
+
+#if CONFIG_MPEG_VDPAU_DECODER
+AVCodec mpeg_vdpau_decoder = {
+ "mpegvideo_vdpau",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_MPEG2VIDEO,
+ sizeof(Mpeg1Context),
+ mpeg_decode_init,
+ NULL,
+ mpeg_decode_end,
+ mpeg_decode_frame,
+ CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_HWACCEL_VDPAU | CODEC_CAP_DELAY,
+ .flush= ff_mpeg_flush,
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-1/2 video (VDPAU acceleration)"),
};
+#endif
+#if CONFIG_MPEG1_VDPAU_DECODER
+AVCodec mpeg1_vdpau_decoder = {
+ "mpeg1video_vdpau",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_MPEG1VIDEO,
+ sizeof(Mpeg1Context),
+ mpeg_decode_init,
+ NULL,
+ mpeg_decode_end,
+ mpeg_decode_frame,
+ CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_HWACCEL_VDPAU | CODEC_CAP_DELAY,
+ .flush= ff_mpeg_flush,
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-1 video (VDPAU acceleration)"),
+};
#endif
-/* this is ugly i know, but the alternative is too make
- hundreds of vars global and prefix them with ff_mpeg1_
- which is far uglier. */
-#include "mdec.c"
projects / frescor / ffmpeg.git / blobdiff