};
/**
- * predicts the ac.
+ * Predict the ac.
* @param n block index (0-3 are luma, 4-5 are chroma)
* @param dir the ac prediction direction
*/
-void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
- int dir)
+void ff_mpeg4_pred_ac(MpegEncContext * s, int16_t *block, int n,
+ int dir)
{
int i;
int16_t *ac_val, *ac_val1;
}
/**
- * decodes the next video packet.
+ * Decode the next video packet.
* @return <0 if something went wrong
*/
-int mpeg4_decode_video_packet_header(MpegEncContext *s)
+int ff_mpeg4_decode_video_packet_header(MpegEncContext *s)
{
int mb_num_bits= av_log2(s->mb_num - 1) + 1;
int header_extension=0, mb_num, len;
int mb_x = 0, mb_y = 0;
while (s->next_picture.f.mbskip_table[s->mb_index2xy[mb_num]]) {
- if (!mb_x) ff_thread_await_progress((AVFrame*)s->next_picture_ptr, mb_y++, 0);
+ if (!mb_x)
+ ff_thread_await_progress(&s->next_picture_ptr->f, mb_y++, 0);
mb_num++;
if (++mb_x == s->mb_width) mb_x = 0;
}
}
/**
- * gets the average motion vector for a GMC MB.
+ * Get the average motion vector for a GMC MB.
* @param n either 0 for the x component or 1 for y
* @return the average MV for a GMC MB
*/
}
/**
- * decodes the dc value.
+ * Decode the dc value.
* @param n block index (0-3 are luma, 4-5 are chroma)
* @param dir_ptr the prediction direction will be stored here
* @return the quantized dc
if (code > 8){
if(get_bits1(&s->gb)==0){ /* marker */
- if(s->error_recognition>=2){
+ if(s->err_recognition&AV_EF_BITSTREAM){
av_log(s->avctx, AV_LOG_ERROR, "dc marker bit missing\n");
return -1;
}
}
/**
- * decodes first partition.
+ * Decode first partition.
* @return number of MBs decoded or <0 if an error occurred
*/
static int mpeg4_decode_partition_a(MpegEncContext *s){
if ((cbpc & 16) == 0) {
/* 16x16 motion prediction */
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
if(!s->mcsel){
- mx = h263_decode_motion(s, pred_x, s->f_code);
+ mx = ff_h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- my = h263_decode_motion(s, pred_y, s->f_code);
+ my = ff_h263_decode_motion(s, pred_y, s->f_code);
if (my >= 0xffff)
return -1;
s->current_picture.f.mb_type[xy] = MB_TYPE_16x16 | MB_TYPE_L0;
int i;
s->current_picture.f.mb_type[xy] = MB_TYPE_8x8 | MB_TYPE_L0;
for(i=0;i<4;i++) {
- int16_t *mot_val= h263_pred_motion(s, i, 0, &pred_x, &pred_y);
- mx = h263_decode_motion(s, pred_x, s->f_code);
+ int16_t *mot_val= ff_h263_pred_motion(s, i, 0, &pred_x, &pred_y);
+ mx = ff_h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- my = h263_decode_motion(s, pred_y, s->f_code);
+ my = ff_h263_decode_motion(s, pred_y, s->f_code);
if (my >= 0xffff)
return -1;
mot_val[0] = mx;
}
/**
- * decodes the first & second partition
+ * Decode the first and second partition.
* @return <0 if error (and sets error type in the error_status_table)
*/
int ff_mpeg4_decode_partitions(MpegEncContext *s)
{
int mb_num;
- const int part_a_error= s->pict_type==AV_PICTURE_TYPE_I ? (DC_ERROR|MV_ERROR) : MV_ERROR;
- const int part_a_end = s->pict_type==AV_PICTURE_TYPE_I ? (DC_END |MV_END) : MV_END;
+ const int part_a_error= s->pict_type==AV_PICTURE_TYPE_I ? (ER_DC_ERROR|ER_MV_ERROR) : ER_MV_ERROR;
+ const int part_a_end = s->pict_type==AV_PICTURE_TYPE_I ? (ER_DC_END |ER_MV_END) : ER_MV_END;
mb_num= mpeg4_decode_partition_a(s);
if(mb_num<0){
if( mpeg4_decode_partition_b(s, mb_num) < 0){
if(s->pict_type==AV_PICTURE_TYPE_P)
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, DC_ERROR);
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, ER_DC_ERROR);
return -1;
}else{
if(s->pict_type==AV_PICTURE_TYPE_P)
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, DC_END);
+ ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_DC_END);
}
return 0;
}
/**
- * decodes a block.
+ * Decode a block.
* @return <0 if an error occurred
*/
-static inline int mpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
+static inline int mpeg4_decode_block(MpegEncContext * s, int16_t * block,
int n, int coded, int intra, int rvlc)
{
int level, i, last, run;
goto not_coded;
if(rvlc){
- rl = &rvlc_rl_intra;
- rl_vlc = rvlc_rl_intra.rl_vlc[0];
+ rl = &ff_rvlc_rl_intra;
+ rl_vlc = ff_rvlc_rl_intra.rl_vlc[0];
}else{
rl = &ff_mpeg4_rl_intra;
rl_vlc = ff_mpeg4_rl_intra.rl_vlc[0];
s->block_last_index[n] = i;
return 0;
}
- if(rvlc) rl = &rvlc_rl_inter;
+ if(rvlc) rl = &ff_rvlc_rl_inter;
else rl = &ff_h263_rl_inter;
scan_table = s->intra_scantable.permutated;
qmul=1;
qadd=0;
if(rvlc){
- rl_vlc = rvlc_rl_inter.rl_vlc[0];
+ rl_vlc = ff_rvlc_rl_inter.rl_vlc[0];
}else{
rl_vlc = ff_h263_rl_inter.rl_vlc[0];
}
qmul = s->qscale << 1;
qadd = (s->qscale - 1) | 1;
if(rvlc){
- rl_vlc = rvlc_rl_inter.rl_vlc[s->qscale];
+ rl_vlc = ff_rvlc_rl_inter.rl_vlc[s->qscale];
}else{
rl_vlc = ff_h263_rl_inter.rl_vlc[s->qscale];
}
}; SKIP_CACHE(re, &s->gb, 1);
last= SHOW_UBITS(re, &s->gb, 1); SKIP_CACHE(re, &s->gb, 1);
- run= SHOW_UBITS(re, &s->gb, 6); LAST_SKIP_CACHE(re, &s->gb, 6);
+ run= SHOW_UBITS(re, &s->gb, 6);
SKIP_COUNTER(re, &s->gb, 1+1+6);
UPDATE_CACHE(re, &s->gb);
}; SKIP_CACHE(re, &s->gb, 5);
level= level * qmul + qadd;
- level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1); LAST_SKIP_CACHE(re, &s->gb, 1);
+ level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);
SKIP_COUNTER(re, &s->gb, 1+11+5+1);
i+= run + 1;
/* third escape */
SKIP_CACHE(re, &s->gb, 2);
last= SHOW_UBITS(re, &s->gb, 1); SKIP_CACHE(re, &s->gb, 1);
- run= SHOW_UBITS(re, &s->gb, 6); LAST_SKIP_CACHE(re, &s->gb, 6);
+ run= SHOW_UBITS(re, &s->gb, 6);
SKIP_COUNTER(re, &s->gb, 2+1+6);
UPDATE_CACHE(re, &s->gb);
if(SHOW_UBITS(re, &s->gb, 1)==0){
av_log(s->avctx, AV_LOG_ERROR, "2. marker bit missing in 3. esc\n");
return -1;
- }; LAST_SKIP_CACHE(re, &s->gb, 1);
+ }
SKIP_COUNTER(re, &s->gb, 1+12+1);
}
else level= level * qmul - qadd;
if((unsigned)(level + 2048) > 4095){
- if(s->error_recognition > FF_ER_COMPLIANT){
+ if(s->err_recognition & AV_EF_BITSTREAM){
if(level > 2560 || level<-2560){
av_log(s->avctx, AV_LOG_ERROR, "|level| overflow in 3. esc, qp=%d\n", s->qscale);
return -1;
i -= i>>31; //if(i == -1) i=0;
}
- mpeg4_pred_ac(s, block, n, dc_pred_dir);
+ ff_mpeg4_pred_ac(s, block, n, dc_pred_dir);
if (s->ac_pred) {
i = 63; /* XXX: not optimal */
}
* decode partition C of one MB.
* @return <0 if an error occurred
*/
-static int mpeg4_decode_partitioned_mb(MpegEncContext *s, DCTELEM block[6][64])
+static int mpeg4_decode_partitioned_mb(MpegEncContext *s, int16_t block[6][64])
{
int cbp, mb_type;
const int xy= s->mb_x + s->mb_y*s->mb_stride;
}
static int mpeg4_decode_mb(MpegEncContext *s,
- DCTELEM block[6][64])
+ int16_t block[6][64])
{
int cbpc, cbpy, i, cbp, pred_x, pred_y, mx, my, dquant;
int16_t *mot_val;
s->field_select[0][0]= get_bits1(&s->gb);
s->field_select[0][1]= get_bits1(&s->gb);
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
for(i=0; i<2; i++){
- mx = h263_decode_motion(s, pred_x, s->f_code);
+ mx = ff_h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- my = h263_decode_motion(s, pred_y/2, s->f_code);
+ my = ff_h263_decode_motion(s, pred_y/2, s->f_code);
if (my >= 0xffff)
return -1;
s->current_picture.f.mb_type[xy] = MB_TYPE_16x16 | MB_TYPE_L0;
/* 16x16 motion prediction */
s->mv_type = MV_TYPE_16X16;
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
- mx = h263_decode_motion(s, pred_x, s->f_code);
+ ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ mx = ff_h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- my = h263_decode_motion(s, pred_y, s->f_code);
+ my = ff_h263_decode_motion(s, pred_y, s->f_code);
if (my >= 0xffff)
return -1;
s->current_picture.f.mb_type[xy] = MB_TYPE_8x8 | MB_TYPE_L0;
s->mv_type = MV_TYPE_8X8;
for(i=0;i<4;i++) {
- mot_val = h263_pred_motion(s, i, 0, &pred_x, &pred_y);
- mx = h263_decode_motion(s, pred_x, s->f_code);
+ mot_val = ff_h263_pred_motion(s, i, 0, &pred_x, &pred_y);
+ mx = ff_h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- my = h263_decode_motion(s, pred_y, s->f_code);
+ my = ff_h263_decode_motion(s, pred_y, s->f_code);
if (my >= 0xffff)
return -1;
s->mv[0][i][0] = mx;
s->last_mv[i][1][1]= 0;
}
- ff_thread_await_progress((AVFrame*)s->next_picture_ptr, s->mb_y, 0);
+ ff_thread_await_progress(&s->next_picture_ptr->f, s->mb_y, 0);
}
/* if we skipped it in the future P Frame than skip it now too */
if(USES_LIST(mb_type, 0)){
s->mv_dir = MV_DIR_FORWARD;
- mx = h263_decode_motion(s, s->last_mv[0][0][0], s->f_code);
- my = h263_decode_motion(s, s->last_mv[0][0][1], s->f_code);
+ mx = ff_h263_decode_motion(s, s->last_mv[0][0][0], s->f_code);
+ my = ff_h263_decode_motion(s, s->last_mv[0][0][1], s->f_code);
s->last_mv[0][1][0]= s->last_mv[0][0][0]= s->mv[0][0][0] = mx;
s->last_mv[0][1][1]= s->last_mv[0][0][1]= s->mv[0][0][1] = my;
}
if(USES_LIST(mb_type, 1)){
s->mv_dir |= MV_DIR_BACKWARD;
- mx = h263_decode_motion(s, s->last_mv[1][0][0], s->b_code);
- my = h263_decode_motion(s, s->last_mv[1][0][1], s->b_code);
+ mx = ff_h263_decode_motion(s, s->last_mv[1][0][0], s->b_code);
+ my = ff_h263_decode_motion(s, s->last_mv[1][0][1], s->b_code);
s->last_mv[1][1][0]= s->last_mv[1][0][0]= s->mv[1][0][0] = mx;
s->last_mv[1][1][1]= s->last_mv[1][0][1]= s->mv[1][0][1] = my;
}
s->mv_dir = MV_DIR_FORWARD;
for(i=0; i<2; i++){
- mx = h263_decode_motion(s, s->last_mv[0][i][0] , s->f_code);
- my = h263_decode_motion(s, s->last_mv[0][i][1]/2, s->f_code);
+ mx = ff_h263_decode_motion(s, s->last_mv[0][i][0] , s->f_code);
+ my = ff_h263_decode_motion(s, s->last_mv[0][i][1]/2, s->f_code);
s->last_mv[0][i][0]= s->mv[0][i][0] = mx;
s->last_mv[0][i][1]= (s->mv[0][i][1] = my)*2;
}
s->mv_dir |= MV_DIR_BACKWARD;
for(i=0; i<2; i++){
- mx = h263_decode_motion(s, s->last_mv[1][i][0] , s->b_code);
- my = h263_decode_motion(s, s->last_mv[1][i][1]/2, s->b_code);
+ mx = ff_h263_decode_motion(s, s->last_mv[1][i][0] , s->b_code);
+ my = ff_h263_decode_motion(s, s->last_mv[1][i][1]/2, s->b_code);
s->last_mv[1][i][0]= s->mv[1][i][0] = mx;
s->last_mv[1][i][1]= (s->mv[1][i][1] = my)*2;
}
if(IS_SKIP(mb_type))
mx=my=0;
else{
- mx = h263_decode_motion(s, 0, 1);
- my = h263_decode_motion(s, 0, 1);
+ mx = ff_h263_decode_motion(s, 0, 1);
+ my = ff_h263_decode_motion(s, 0, 1);
}
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
end:
/* per-MB end of slice check */
- if(s->codec_id==CODEC_ID_MPEG4){
+ if(s->codec_id==AV_CODEC_ID_MPEG4){
if(mpeg4_is_resync(s)){
const int delta= s->mb_x + 1 == s->mb_width ? 2 : 1;
if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture.f.mbskip_table[xy + delta]) {
- ff_thread_await_progress((AVFrame*)s->next_picture_ptr,
+ ff_thread_await_progress(&s->next_picture_ptr->f,
(s->mb_x + delta >= s->mb_width) ? FFMIN(s->mb_y+1, s->mb_height-1) : s->mb_y, 0);
}
height = get_bits(gb, 13);
skip_bits1(gb); /* marker */
if(width && height && !(s->width && s->codec_tag == AV_RL32("MP4S"))){ /* they should be non zero but who knows ... */
+ if (s->width && s->height &&
+ (s->width != width || s->height != height))
+ s->context_reinit = 1;
s->width = width;
s->height = height;
}
}
/**
- * decodes the user data stuff in the header.
+ * Decode the user data stuff in the header.
* Also initializes divx/xvid/lavc_version/build.
*/
static int decode_user_data(MpegEncContext *s, GetBitContext *gb){
}
}
- /* ffmpeg detection */
+ /* libavcodec detection */
e=sscanf(buf, "FFmpe%*[^b]b%d", &build)+3;
if(e!=4)
e=sscanf(buf, "FFmpeg v%d.%d.%d / libavcodec build: %d", &ver, &ver2, &ver3, &build);
if(s->pict_type == AV_PICTURE_TYPE_B)
skip_bits_long(gb, s->cplx_estimation_trash_b);
- s->intra_dc_threshold= mpeg4_dc_threshold[ get_bits(gb, 3) ];
+ s->intra_dc_threshold= ff_mpeg4_dc_threshold[ get_bits(gb, 3) ];
if(!s->progressive_sequence){
s->top_field_first= get_bits1(gb);
s->alternate_scan= get_bits1(gb);
}
/**
- * decode mpeg4 headers
+ * Decode mpeg4 headers.
* @return <0 if no VOP found (or a damaged one)
* FRAME_SKIPPED if a not coded VOP is found
* 0 if a VOP is found
*/
int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb)
{
- int startcode, v;
+ unsigned startcode, v;
/* search next start code */
align_get_bits(gb);
if (!done) {
done = 1;
- init_rl(&ff_mpeg4_rl_intra, ff_mpeg4_static_rl_table_store[0]);
- init_rl(&rvlc_rl_inter, ff_mpeg4_static_rl_table_store[1]);
- init_rl(&rvlc_rl_intra, ff_mpeg4_static_rl_table_store[2]);
+ ff_init_rl(&ff_mpeg4_rl_intra, ff_mpeg4_static_rl_table_store[0]);
+ ff_init_rl(&ff_rvlc_rl_inter, ff_mpeg4_static_rl_table_store[1]);
+ ff_init_rl(&ff_rvlc_rl_intra, ff_mpeg4_static_rl_table_store[2]);
INIT_VLC_RL(ff_mpeg4_rl_intra, 554);
- INIT_VLC_RL(rvlc_rl_inter, 1072);
- INIT_VLC_RL(rvlc_rl_intra, 1072);
+ INIT_VLC_RL(ff_rvlc_rl_inter, 1072);
+ INIT_VLC_RL(ff_rvlc_rl_intra, 1072);
INIT_VLC_STATIC(&dc_lum, DC_VLC_BITS, 10 /* 13 */,
&ff_mpeg4_DCtab_lum[0][1], 2, 1,
&ff_mpeg4_DCtab_lum[0][0], 2, 1, 512);
&ff_mpeg4_DCtab_chrom[0][1], 2, 1,
&ff_mpeg4_DCtab_chrom[0][0], 2, 1, 512);
INIT_VLC_STATIC(&sprite_trajectory, SPRITE_TRAJ_VLC_BITS, 15,
- &sprite_trajectory_tab[0][1], 4, 2,
- &sprite_trajectory_tab[0][0], 4, 2, 128);
+ &ff_sprite_trajectory_tab[0][1], 4, 2,
+ &ff_sprite_trajectory_tab[0][0], 4, 2, 128);
INIT_VLC_STATIC(&mb_type_b_vlc, MB_TYPE_B_VLC_BITS, 4,
- &mb_type_b_tab[0][1], 2, 1,
- &mb_type_b_tab[0][0], 2, 1, 16);
+ &ff_mb_type_b_tab[0][1], 2, 1,
+ &ff_mb_type_b_tab[0][0], 2, 1, 16);
}
s->h263_pred = 1;
};
AVCodec ff_mpeg4_decoder = {
- .name = "mpeg4",
- .type = AVMEDIA_TYPE_VIDEO,
- .id = CODEC_ID_MPEG4,
- .priv_data_size = sizeof(MpegEncContext),
- .init = decode_init,
- .close = ff_h263_decode_end,
- .decode = ff_h263_decode_frame,
- .capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY | CODEC_CAP_FRAME_THREADS,
- .flush= ff_mpeg_flush,
- .max_lowres= 3,
- .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
- .pix_fmts= ff_hwaccel_pixfmt_list_420,
- .profiles = NULL_IF_CONFIG_SMALL(mpeg4_video_profiles),
- .update_thread_context= ONLY_IF_THREADS_ENABLED(ff_mpeg_update_thread_context)
+ .name = "mpeg4",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_CODEC_ID_MPEG4,
+ .priv_data_size = sizeof(MpegEncContext),
+ .init = decode_init,
+ .close = ff_h263_decode_end,
+ .decode = ff_h263_decode_frame,
+ .capabilities = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 |
+ CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY |
+ CODEC_CAP_FRAME_THREADS,
+ .flush = ff_mpeg_flush,
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
+ .pix_fmts = ff_hwaccel_pixfmt_list_420,
+ .profiles = NULL_IF_CONFIG_SMALL(mpeg4_video_profiles),
+ .update_thread_context = ONLY_IF_THREADS_ENABLED(ff_mpeg_update_thread_context),
};
AVCodec ff_mpeg4_vdpau_decoder = {
.name = "mpeg4_vdpau",
.type = AVMEDIA_TYPE_VIDEO,
- .id = CODEC_ID_MPEG4,
+ .id = AV_CODEC_ID_MPEG4,
.priv_data_size = sizeof(MpegEncContext),
.init = decode_init,
.close = ff_h263_decode_end,
.decode = ff_h263_decode_frame,
- .capabilities = CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
- .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 (VDPAU)"),
- .pix_fmts= (const enum PixelFormat[]){PIX_FMT_VDPAU_MPEG4, PIX_FMT_NONE},
+ .capabilities = CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY |
+ CODEC_CAP_HWACCEL_VDPAU,
+ .long_name = NULL_IF_CONFIG_SMALL("MPEG-4 part 2 (VDPAU)"),
+ .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_VDPAU_MPEG4,
+ AV_PIX_FMT_NONE },
};
#endif
projects / ffmpeg / blobdiff