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h264_refs: cosmetics, reformat

tags/n2.0
Anton Khirnov 12 years ago
parent
f08fefc4d0
commit
c2597c5a0a
1 changed files with 213 additions and 187 deletions
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  1. +213
    -187
      libavcodec/h264_refs.c

+ 213
- 187
libavcodec/h264_refs.c View File

@@ -46,19 +46,19 @@ static void pic_as_field(Picture *pic, const int parity){
for (i = 0; i < 4; ++i) {
if (parity == PICT_BOTTOM_FIELD)
pic->f.data[i] += pic->f.linesize[i];
pic->reference = parity;
pic->reference = parity;
pic->f.linesize[i] *= 2;
}
pic->poc= pic->field_poc[parity == PICT_BOTTOM_FIELD];
}

static int split_field_copy(Picture *dest, Picture *src,
int parity, int id_add){
static int split_field_copy(Picture *dest, Picture *src, int parity, int id_add)
{
int match = !!(src->reference & parity);

if (match) {
COPY_PICTURE(dest, src);
if(parity != PICT_FRAME){
if (parity != PICT_FRAME) {
pic_as_field(dest, parity);
dest->pic_id *= 2;
dest->pic_id += id_add;
@@ -68,76 +68,79 @@ static int split_field_copy(Picture *dest, Picture *src,
return match;
}

static int build_def_list(Picture *def, Picture **in, int len, int is_long, int sel){
int i[2]={0};
int index=0;
static int build_def_list(Picture *def, Picture **in, int len, int is_long, int sel)
{
int i[2] = { 0 };
int index = 0;

while(i[0]<len || i[1]<len){
while (i[0] < len && !(in[ i[0] ] && (in[ i[0] ]->reference & sel)))
while (i[0] < len || i[1] < len) {
while (i[0] < len && !(in[i[0]] && (in[i[0]]->reference & sel)))
i[0]++;
while (i[1] < len && !(in[ i[1] ] && (in[ i[1] ]->reference & (sel^3))))
while (i[1] < len && !(in[i[1]] && (in[i[1]]->reference & (sel ^ 3))))
i[1]++;
if(i[0] < len){
in[ i[0] ]->pic_id= is_long ? i[0] : in[ i[0] ]->frame_num;
split_field_copy(&def[index++], in[ i[0]++ ], sel , 1);
if (i[0] < len) {
in[i[0]]->pic_id = is_long ? i[0] : in[i[0]]->frame_num;
split_field_copy(&def[index++], in[i[0]++], sel, 1);
}
if(i[1] < len){
in[ i[1] ]->pic_id= is_long ? i[1] : in[ i[1] ]->frame_num;
split_field_copy(&def[index++], in[ i[1]++ ], sel^3, 0);
if (i[1] < len) {
in[i[1]]->pic_id = is_long ? i[1] : in[i[1]]->frame_num;
split_field_copy(&def[index++], in[i[1]++], sel ^ 3, 0);
}
}

return index;
}

static int add_sorted(Picture **sorted, Picture **src, int len, int limit, int dir){
static int add_sorted(Picture **sorted, Picture **src, int len, int limit, int dir)
{
int i, best_poc;
int out_i= 0;
int out_i = 0;

for(;;){
best_poc= dir ? INT_MIN : INT_MAX;
for (;;) {
best_poc = dir ? INT_MIN : INT_MAX;

for(i=0; i<len; i++){
const int poc= src[i]->poc;
if(((poc > limit) ^ dir) && ((poc < best_poc) ^ dir)){
best_poc= poc;
sorted[out_i]= src[i];
for (i = 0; i < len; i++) {
const int poc = src[i]->poc;
if (((poc > limit) ^ dir) && ((poc < best_poc) ^ dir)) {
best_poc = poc;
sorted[out_i] = src[i];
}
}
if(best_poc == (dir ? INT_MIN : INT_MAX))
if (best_poc == (dir ? INT_MIN : INT_MAX))
break;
limit= sorted[out_i++]->poc - dir;
limit = sorted[out_i++]->poc - dir;
}
return out_i;
}

int ff_h264_fill_default_ref_list(H264Context *h){
int ff_h264_fill_default_ref_list(H264Context *h)
{
int i, len;

if(h->slice_type_nos==AV_PICTURE_TYPE_B){
if (h->slice_type_nos == AV_PICTURE_TYPE_B) {
Picture *sorted[32];
int cur_poc, list;
int lens[2];

if(FIELD_PICTURE)
cur_poc= h->cur_pic_ptr->field_poc[h->picture_structure == PICT_BOTTOM_FIELD];
if (FIELD_PICTURE)
cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure == PICT_BOTTOM_FIELD];
else
cur_poc= h->cur_pic_ptr->poc;
for(list= 0; list<2; list++){
len= add_sorted(sorted , h->short_ref, h->short_ref_count, cur_poc, 1^list);
len+=add_sorted(sorted+len, h->short_ref, h->short_ref_count, cur_poc, 0^list);
assert(len<=32);
len= build_def_list(h->default_ref_list[list] , sorted , len, 0, h->picture_structure);
len+=build_def_list(h->default_ref_list[list]+len, h->long_ref, 16 , 1, h->picture_structure);
assert(len<=32);
if(len < h->ref_count[list])
memset(&h->default_ref_list[list][len], 0, sizeof(Picture)*(h->ref_count[list] - len));
lens[list]= len;
cur_poc = h->cur_pic_ptr->poc;
for (list = 0; list < 2; list++) {
len = add_sorted(sorted, h->short_ref, h->short_ref_count, cur_poc, 1 ^ list);
len += add_sorted(sorted + len, h->short_ref, h->short_ref_count, cur_poc, 0 ^ list);
assert(len <= 32);
len = build_def_list(h->default_ref_list[list], sorted, len, 0, h->picture_structure);
len += build_def_list(h->default_ref_list[list] + len, h->long_ref, 16, 1, h->picture_structure);
assert(len <= 32);
if (len < h->ref_count[list])
memset(&h->default_ref_list[list][len], 0, sizeof(Picture) * (h->ref_count[list] - len));
lens[list] = len;
}

if(lens[0] == lens[1] && lens[1] > 1){
if (lens[0] == lens[1] && lens[1] > 1) {
for (i = 0; h->default_ref_list[0][i].f.data[0] == h->default_ref_list[1][i].f.data[0] && i < lens[0]; i++);
if (i == lens[0]) {
Picture tmp;
@@ -146,20 +149,26 @@ int ff_h264_fill_default_ref_list(H264Context *h){
COPY_PICTURE(&h->default_ref_list[1][1], &tmp);
}
}
}else{
len = build_def_list(h->default_ref_list[0] , h->short_ref, h->short_ref_count, 0, h->picture_structure);
len+= build_def_list(h->default_ref_list[0]+len, h-> long_ref, 16 , 1, h->picture_structure);
} else {
len = build_def_list(h->default_ref_list[0], h->short_ref, h->short_ref_count, 0, h->picture_structure);
len += build_def_list(h->default_ref_list[0] + len, h-> long_ref, 16, 1, h->picture_structure);
assert(len <= 32);
if(len < h->ref_count[0])
memset(&h->default_ref_list[0][len], 0, sizeof(Picture)*(h->ref_count[0] - len));
if (len < h->ref_count[0])
memset(&h->default_ref_list[0][len], 0, sizeof(Picture) * (h->ref_count[0] - len));
}
#ifdef TRACE
for (i=0; i<h->ref_count[0]; i++) {
tprintf(h->avctx, "List0: %s fn:%d 0x%p\n", (h->default_ref_list[0][i].long_ref ? "LT" : "ST"), h->default_ref_list[0][i].pic_id, h->default_ref_list[0][i].f.data[0]);
for (i = 0; i < h->ref_count[0]; i++) {
tprintf(h->avctx, "List0: %s fn:%d 0x%p\n",
(h->default_ref_list[0][i].long_ref ? "LT" : "ST"),
h->default_ref_list[0][i].pic_id,
h->default_ref_list[0][i].f.data[0]);
}
if(h->slice_type_nos==AV_PICTURE_TYPE_B){
for (i=0; i<h->ref_count[1]; i++) {
tprintf(h->avctx, "List1: %s fn:%d 0x%p\n", (h->default_ref_list[1][i].long_ref ? "LT" : "ST"), h->default_ref_list[1][i].pic_id, h->default_ref_list[1][i].f.data[0]);
if (h->slice_type_nos == AV_PICTURE_TYPE_B) {
for (i = 0; i < h->ref_count[1]; i++) {
tprintf(h->avctx, "List1: %s fn:%d 0x%p\n",
(h->default_ref_list[1][i].long_ref ? "LT" : "ST"),
h->default_ref_list[1][i].pic_id,
h->default_ref_list[1][i].f.data[0]);
}
}
#endif
@@ -179,9 +188,10 @@ static void print_long_term(H264Context *h);
* @return frame number (short term) or long term index of picture
* described by pic_num
*/
static int pic_num_extract(H264Context *h, int pic_num, int *structure){
static int pic_num_extract(H264Context *h, int pic_num, int *structure)
{
*structure = h->picture_structure;
if(FIELD_PICTURE){
if (FIELD_PICTURE) {
if (!(pic_num & 1))
/* opposite field */
*structure ^= PICT_FRAME;
@@ -191,79 +201,80 @@ static int pic_num_extract(H264Context *h, int pic_num, int *structure){
return pic_num;
}

int ff_h264_decode_ref_pic_list_reordering(H264Context *h){
int ff_h264_decode_ref_pic_list_reordering(H264Context *h)
{
int list, index, pic_structure, i;

print_short_term(h);
print_long_term(h);

for(list=0; list<h->list_count; list++){
for (list = 0; list < h->list_count; list++) {
for (i = 0; i < h->ref_count[list]; i++)
COPY_PICTURE(&h->ref_list[list][i], &h->default_ref_list[list][i]);

if(get_bits1(&h->gb)){
int pred= h->curr_pic_num;
if (get_bits1(&h->gb)) {
int pred = h->curr_pic_num;

for(index=0; ; index++){
unsigned int reordering_of_pic_nums_idc= get_ue_golomb_31(&h->gb);
for (index = 0; ; index++) {
unsigned int reordering_of_pic_nums_idc = get_ue_golomb_31(&h->gb);
unsigned int pic_id;
int i;
Picture *ref = NULL;

if(reordering_of_pic_nums_idc==3)
if (reordering_of_pic_nums_idc == 3)
break;

if(index >= h->ref_count[list]){
if (index >= h->ref_count[list]) {
av_log(h->avctx, AV_LOG_ERROR, "reference count overflow\n");
return -1;
}

if(reordering_of_pic_nums_idc<3){
if(reordering_of_pic_nums_idc<2){
const unsigned int abs_diff_pic_num= get_ue_golomb(&h->gb) + 1;
if (reordering_of_pic_nums_idc < 3) {
if (reordering_of_pic_nums_idc < 2) {
const unsigned int abs_diff_pic_num = get_ue_golomb(&h->gb) + 1;
int frame_num;

if(abs_diff_pic_num > h->max_pic_num){
if (abs_diff_pic_num > h->max_pic_num) {
av_log(h->avctx, AV_LOG_ERROR, "abs_diff_pic_num overflow\n");
return -1;
}

if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num;
else pred+= abs_diff_pic_num;
if (reordering_of_pic_nums_idc == 0)
pred -= abs_diff_pic_num;
else
pred += abs_diff_pic_num;
pred &= h->max_pic_num - 1;

frame_num = pic_num_extract(h, pred, &pic_structure);

for(i= h->short_ref_count-1; i>=0; i--){
for (i = h->short_ref_count - 1; i >= 0; i--) {
ref = h->short_ref[i];
assert(ref->reference);
assert(!ref->long_ref);
if(
ref->frame_num == frame_num &&
(ref->reference & pic_structure)
)
if (ref->frame_num == frame_num &&
(ref->reference & pic_structure))
break;
}
if(i>=0)
ref->pic_id= pred;
}else{
if (i >= 0)
ref->pic_id = pred;
} else {
int long_idx;
pic_id= get_ue_golomb(&h->gb); //long_term_pic_idx
pic_id = get_ue_golomb(&h->gb); //long_term_pic_idx

long_idx= pic_num_extract(h, pic_id, &pic_structure);
long_idx = pic_num_extract(h, pic_id, &pic_structure);

if(long_idx>31){
if (long_idx > 31) {
av_log(h->avctx, AV_LOG_ERROR, "long_term_pic_idx overflow\n");
return -1;
}
ref = h->long_ref[long_idx];
assert(!(ref && !ref->reference));
if (ref && (ref->reference & pic_structure)) {
ref->pic_id= pic_id;
ref->pic_id = pic_id;
assert(ref->long_ref);
i=0;
}else{
i=-1;
i = 0;
} else {
i = -1;
}
}

@@ -271,27 +282,28 @@ int ff_h264_decode_ref_pic_list_reordering(H264Context *h){
av_log(h->avctx, AV_LOG_ERROR, "reference picture missing during reorder\n");
memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME
} else {
for(i=index; i+1<h->ref_count[list]; i++){
if(ref->long_ref == h->ref_list[list][i].long_ref && ref->pic_id == h->ref_list[list][i].pic_id)
for (i = index; i + 1 < h->ref_count[list]; i++) {
if (ref->long_ref == h->ref_list[list][i].long_ref &&
ref->pic_id == h->ref_list[list][i].pic_id)
break;
}
for(; i > index; i--){
for (; i > index; i--) {
COPY_PICTURE(&h->ref_list[list][i], &h->ref_list[list][i - 1]);
}
COPY_PICTURE(&h->ref_list[list][index], ref);
if (FIELD_PICTURE){
if (FIELD_PICTURE) {
pic_as_field(&h->ref_list[list][index], pic_structure);
}
}
}else{
} else {
av_log(h->avctx, AV_LOG_ERROR, "illegal reordering_of_pic_nums_idc\n");
return -1;
}
}
}
}
for(list=0; list<h->list_count; list++){
for(index= 0; index < h->ref_count[list]; index++){
for (list = 0; list < h->list_count; list++) {
for (index = 0; index < h->ref_count[list]; index++) {
if (!h->ref_list[list][index].f.data[0]) {
av_log(h->avctx, AV_LOG_ERROR, "Missing reference picture\n");
if (h->default_ref_list[list][0].f.data[0])
@@ -305,28 +317,29 @@ int ff_h264_decode_ref_pic_list_reordering(H264Context *h){
return 0;
}

void ff_h264_fill_mbaff_ref_list(H264Context *h){
void ff_h264_fill_mbaff_ref_list(H264Context *h)
{
int list, i, j;
for(list=0; list<2; list++){ //FIXME try list_count
for(i=0; i<h->ref_count[list]; i++){
for (list = 0; list < 2; list++) { //FIXME try list_count
for (i = 0; i < h->ref_count[list]; i++) {
Picture *frame = &h->ref_list[list][i];
Picture *field = &h->ref_list[list][16+2*i];
Picture *field = &h->ref_list[list][16 + 2 * i];
COPY_PICTURE(field, frame);
for(j=0; j<3; j++)
for (j = 0; j < 3; j++)
field[0].f.linesize[j] <<= 1;
field[0].reference = PICT_TOP_FIELD;
field[0].poc= field[0].field_poc[0];
field[0].poc = field[0].field_poc[0];
COPY_PICTURE(field + 1, field);
for(j=0; j<3; j++)
for (j = 0; j < 3; j++)
field[1].f.data[j] += frame->f.linesize[j];
field[1].reference = PICT_BOTTOM_FIELD;
field[1].poc= field[1].field_poc[1];
field[1].poc = field[1].field_poc[1];

h->luma_weight[16+2*i][list][0] = h->luma_weight[16+2*i+1][list][0] = h->luma_weight[i][list][0];
h->luma_weight[16+2*i][list][1] = h->luma_weight[16+2*i+1][list][1] = h->luma_weight[i][list][1];
for(j=0; j<2; j++){
h->chroma_weight[16+2*i][list][j][0] = h->chroma_weight[16+2*i+1][list][j][0] = h->chroma_weight[i][list][j][0];
h->chroma_weight[16+2*i][list][j][1] = h->chroma_weight[16+2*i+1][list][j][1] = h->chroma_weight[i][list][j][1];
h->luma_weight[16 + 2 * i][list][0] = h->luma_weight[16 + 2 * i + 1][list][0] = h->luma_weight[i][list][0];
h->luma_weight[16 + 2 * i][list][1] = h->luma_weight[16 + 2 * i + 1][list][1] = h->luma_weight[i][list][1];
for (j = 0; j < 2; j++) {
h->chroma_weight[16 + 2 * i][list][j][0] = h->chroma_weight[16 + 2 * i + 1][list][j][0] = h->chroma_weight[i][list][j][0];
h->chroma_weight[16 + 2 * i][list][j][1] = h->chroma_weight[16 + 2 * i + 1][list][j][1] = h->chroma_weight[i][list][j][1];
}
}
}
@@ -343,7 +356,8 @@ void ff_h264_fill_mbaff_ref_list(H264Context *h){
* for display purposes) zero if one of the fields remains in
* reference
*/
static inline int unreference_pic(H264Context *h, Picture *pic, int refmask){
static inline int unreference_pic(H264Context *h, Picture *pic, int refmask)
{
int i;
if (pic->reference &= refmask) {
return 0;
@@ -365,14 +379,15 @@ static inline int unreference_pic(H264Context *h, Picture *pic, int refmask){
* @return pointer to the found picture, or NULL if no pic with the provided
* frame number is found
*/
static Picture * find_short(H264Context *h, int frame_num, int *idx){
static Picture *find_short(H264Context *h, int frame_num, int *idx)
{
int i;

for(i=0; i<h->short_ref_count; i++){
Picture *pic= h->short_ref[i];
if(h->avctx->debug&FF_DEBUG_MMCO)
for (i = 0; i < h->short_ref_count; i++) {
Picture *pic = h->short_ref[i];
if (h->avctx->debug & FF_DEBUG_MMCO)
av_log(h->avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num, pic);
if(pic->frame_num == frame_num) {
if (pic->frame_num == frame_num) {
*idx = i;
return pic;
}
@@ -386,28 +401,31 @@ static Picture * find_short(H264Context *h, int frame_num, int *idx){
* to be valid. Other list entries are shifted down.
* @param i index into h->short_ref of picture to remove.
*/
static void remove_short_at_index(H264Context *h, int i){
static void remove_short_at_index(H264Context *h, int i)
{
assert(i >= 0 && i < h->short_ref_count);
h->short_ref[i]= NULL;
h->short_ref[i] = NULL;
if (--h->short_ref_count)
memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i)*sizeof(Picture*));
memmove(&h->short_ref[i], &h->short_ref[i + 1],
(h->short_ref_count - i) * sizeof(Picture*));
}

/**
*
* @return the removed picture or NULL if an error occurs
*/
static Picture * remove_short(H264Context *h, int frame_num, int ref_mask){
static Picture *remove_short(H264Context *h, int frame_num, int ref_mask)
{
Picture *pic;
int i;

if(h->avctx->debug&FF_DEBUG_MMCO)
if (h->avctx->debug & FF_DEBUG_MMCO)
av_log(h->avctx, AV_LOG_DEBUG, "remove short %d count %d\n", frame_num, h->short_ref_count);

pic = find_short(h, frame_num, &i);
if (pic){
if(unreference_pic(h, pic, ref_mask))
remove_short_at_index(h, i);
if (pic) {
if (unreference_pic(h, pic, ref_mask))
remove_short_at_index(h, i);
}

return pic;
@@ -418,15 +436,16 @@ static Picture * remove_short(H264Context *h, int frame_num, int ref_mask){
* that list.
* @return the removed picture or NULL if an error occurs
*/
static Picture * remove_long(H264Context *h, int i, int ref_mask){
static Picture *remove_long(H264Context *h, int i, int ref_mask)
{
Picture *pic;

pic= h->long_ref[i];
if (pic){
if(unreference_pic(h, pic, ref_mask)){
pic = h->long_ref[i];
if (pic) {
if (unreference_pic(h, pic, ref_mask)) {
assert(h->long_ref[i]->long_ref == 1);
h->long_ref[i]->long_ref= 0;
h->long_ref[i]= NULL;
h->long_ref[i]->long_ref = 0;
h->long_ref[i] = NULL;
h->long_ref_count--;
}
}
@@ -434,30 +453,32 @@ static Picture * remove_long(H264Context *h, int i, int ref_mask){
return pic;
}

void ff_h264_remove_all_refs(H264Context *h){
void ff_h264_remove_all_refs(H264Context *h)
{
int i;

for(i=0; i<16; i++){
for (i = 0; i < 16; i++) {
remove_long(h, i, 0);
}
assert(h->long_ref_count==0);
assert(h->long_ref_count == 0);

for(i=0; i<h->short_ref_count; i++){
for (i = 0; i < h->short_ref_count; i++) {
unreference_pic(h, h->short_ref[i], 0);
h->short_ref[i]= NULL;
h->short_ref[i] = NULL;
}
h->short_ref_count=0;
h->short_ref_count = 0;
}

/**
* print short term list
*/
static void print_short_term(H264Context *h) {
static void print_short_term(H264Context *h)
{
uint32_t i;
if(h->avctx->debug&FF_DEBUG_MMCO) {
if (h->avctx->debug & FF_DEBUG_MMCO) {
av_log(h->avctx, AV_LOG_DEBUG, "short term list:\n");
for(i=0; i<h->short_ref_count; i++){
Picture *pic= h->short_ref[i];
for (i = 0; i < h->short_ref_count; i++) {
Picture *pic = h->short_ref[i];
av_log(h->avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n",
i, pic->frame_num, pic->poc, pic->f.data[0]);
}
@@ -467,12 +488,13 @@ static void print_short_term(H264Context *h) {
/**
* print long term list
*/
static void print_long_term(H264Context *h) {
static void print_long_term(H264Context *h)
{
uint32_t i;
if(h->avctx->debug&FF_DEBUG_MMCO) {
if (h->avctx->debug & FF_DEBUG_MMCO) {
av_log(h->avctx, AV_LOG_DEBUG, "long term list:\n");
for(i = 0; i < 16; i++){
Picture *pic= h->long_ref[i];
for (i = 0; i < 16; i++) {
Picture *pic = h->long_ref[i];
if (pic) {
av_log(h->avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n",
i, pic->frame_num, pic->poc, pic->f.data[0]);
@@ -503,14 +525,14 @@ int ff_generate_sliding_window_mmcos(H264Context *h, int first_slice)
if (h->short_ref_count &&
h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count &&
!(FIELD_PICTURE && !h->first_field && h->cur_pic_ptr->reference)) {
mmco[0].opcode = MMCO_SHORT2UNUSED;
mmco[0].opcode = MMCO_SHORT2UNUSED;
mmco[0].short_pic_num = h->short_ref[h->short_ref_count - 1]->frame_num;
mmco_index = 1;
mmco_index = 1;
if (FIELD_PICTURE) {
mmco[0].short_pic_num *= 2;
mmco[1].opcode = MMCO_SHORT2UNUSED;
mmco[1].short_pic_num = mmco[0].short_pic_num + 1;
mmco_index = 2;
mmco[1].opcode = MMCO_SHORT2UNUSED;
mmco[1].short_pic_num = mmco[0].short_pic_num + 1;
mmco_index = 2;
}
}

@@ -527,26 +549,29 @@ int ff_generate_sliding_window_mmcos(H264Context *h, int first_slice)
return 0;
}

int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count)
{
int i, av_uninit(j);
int current_ref_assigned=0, err=0;
int current_ref_assigned = 0, err = 0;
Picture *av_uninit(pic);

if((h->avctx->debug&FF_DEBUG_MMCO) && mmco_count==0)
if ((h->avctx->debug & FF_DEBUG_MMCO) && mmco_count == 0)
av_log(h->avctx, AV_LOG_DEBUG, "no mmco here\n");

for(i=0; i<mmco_count; i++){
for (i = 0; i < mmco_count; i++) {
int av_uninit(structure), av_uninit(frame_num);
if(h->avctx->debug&FF_DEBUG_MMCO)
av_log(h->avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_pic_num, h->mmco[i].long_arg);
if (h->avctx->debug & FF_DEBUG_MMCO)
av_log(h->avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode,
h->mmco[i].short_pic_num, h->mmco[i].long_arg);

if( mmco[i].opcode == MMCO_SHORT2UNUSED
|| mmco[i].opcode == MMCO_SHORT2LONG){
if (mmco[i].opcode == MMCO_SHORT2UNUSED ||
mmco[i].opcode == MMCO_SHORT2LONG) {
frame_num = pic_num_extract(h, mmco[i].short_pic_num, &structure);
pic = find_short(h, frame_num, &j);
if(!pic){
if(mmco[i].opcode != MMCO_SHORT2LONG || !h->long_ref[mmco[i].long_arg]
|| h->long_ref[mmco[i].long_arg]->frame_num != frame_num) {
pic = find_short(h, frame_num, &j);
if (!pic) {
if (mmco[i].opcode != MMCO_SHORT2LONG ||
!h->long_ref[mmco[i].long_arg] ||
h->long_ref[mmco[i].long_arg]->frame_num != frame_num) {
av_log(h->avctx, AV_LOG_ERROR, "mmco: unref short failure\n");
err = AVERROR_INVALIDDATA;
}
@@ -554,10 +579,11 @@ int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
}
}

switch(mmco[i].opcode){
switch (mmco[i].opcode) {
case MMCO_SHORT2UNUSED:
if(h->avctx->debug&FF_DEBUG_MMCO)
av_log(h->avctx, AV_LOG_DEBUG, "mmco: unref short %d count %d\n", h->mmco[i].short_pic_num, h->short_ref_count);
if (h->avctx->debug & FF_DEBUG_MMCO)
av_log(h->avctx, AV_LOG_DEBUG, "mmco: unref short %d count %d\n",
h->mmco[i].short_pic_num, h->short_ref_count);
remove_short(h, frame_num, structure ^ PICT_FRAME);
break;
case MMCO_SHORT2LONG:
@@ -565,18 +591,18 @@ int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
remove_long(h, mmco[i].long_arg, 0);

remove_short_at_index(h, j);
h->long_ref[ mmco[i].long_arg ]= pic;
if (h->long_ref[ mmco[i].long_arg ]){
h->long_ref[ mmco[i].long_arg ]->long_ref=1;
h->long_ref[ mmco[i].long_arg ] = pic;
if (h->long_ref[mmco[i].long_arg]) {
h->long_ref[mmco[i].long_arg]->long_ref = 1;
h->long_ref_count++;
}
break;
case MMCO_LONG2UNUSED:
j = pic_num_extract(h, mmco[i].long_arg, &structure);
j = pic_num_extract(h, mmco[i].long_arg, &structure);
pic = h->long_ref[j];
if (pic) {
remove_long(h, j, structure ^ PICT_FRAME);
} else if(h->avctx->debug&FF_DEBUG_MMCO)
} else if (h->avctx->debug & FF_DEBUG_MMCO)
av_log(h->avctx, AV_LOG_DEBUG, "mmco: unref long failure\n");
break;
case MMCO_LONG:
@@ -591,32 +617,31 @@ int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
if (h->long_ref[mmco[i].long_arg] != h->cur_pic_ptr) {
remove_long(h, mmco[i].long_arg, 0);

h->long_ref[ mmco[i].long_arg ]= h->cur_pic_ptr;
h->long_ref[ mmco[i].long_arg ]->long_ref=1;
h->long_ref[mmco[i].long_arg] = h->cur_pic_ptr;
h->long_ref[mmco[i].long_arg]->long_ref = 1;
h->long_ref_count++;
}

h->cur_pic_ptr->reference |= h->picture_structure;
current_ref_assigned=1;
current_ref_assigned = 1;
break;
case MMCO_SET_MAX_LONG:
assert(mmco[i].long_arg <= 16);
// just remove the long term which index is greater than new max
for(j = mmco[i].long_arg; j<16; j++){
for (j = mmco[i].long_arg; j < 16; j++) {
remove_long(h, j, 0);
}
break;
case MMCO_RESET:
while(h->short_ref_count){
while (h->short_ref_count) {
remove_short(h, h->short_ref[0]->frame_num, 0);
}
for(j = 0; j < 16; j++) {
for (j = 0; j < 16; j++) {
remove_long(h, j, 0);
}
h->frame_num=
h->cur_pic_ptr->frame_num= 0;
h->frame_num = h->cur_pic_ptr->frame_num = 0;
h->mmco_reset = 1;
h->cur_pic_ptr->mmco_reset=1;
h->cur_pic_ptr->mmco_reset = 1;
break;
default: assert(0);
}
@@ -639,23 +664,24 @@ int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
"(first field is long term)\n");
err = AVERROR_INVALIDDATA;
} else {
pic= remove_short(h, h->cur_pic_ptr->frame_num, 0);
if(pic){
pic = remove_short(h, h->cur_pic_ptr->frame_num, 0);
if (pic) {
av_log(h->avctx, AV_LOG_ERROR, "illegal short term buffer state detected\n");
err = AVERROR_INVALIDDATA;
}

if(h->short_ref_count)
memmove(&h->short_ref[1], &h->short_ref[0], h->short_ref_count*sizeof(Picture*));
if (h->short_ref_count)
memmove(&h->short_ref[1], &h->short_ref[0],
h->short_ref_count * sizeof(Picture*));

h->short_ref[0]= h->cur_pic_ptr;
h->short_ref[0] = h->cur_pic_ptr;
h->short_ref_count++;
h->cur_pic_ptr->reference |= h->picture_structure;
}
}

if (h->long_ref_count + h->short_ref_count -
(h->short_ref[0] == h->cur_pic_ptr) > h->sps.ref_frame_count){
(h->short_ref[0] == h->cur_pic_ptr) > h->sps.ref_frame_count) {

/* We have too many reference frames, probably due to corrupted
* stream. Need to discard one frame. Prevents overrun of the
@@ -692,12 +718,12 @@ int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb,
MMCO mmco_temp[MAX_MMCO_COUNT], *mmco = first_slice ? h->mmco : mmco_temp;
int mmco_index = 0;

if (h->nal_unit_type == NAL_IDR_SLICE){ // FIXME fields
if (h->nal_unit_type == NAL_IDR_SLICE) { // FIXME fields
skip_bits1(gb); // broken_link
if (get_bits1(gb)){
mmco[0].opcode = MMCO_LONG;
if (get_bits1(gb)) {
mmco[0].opcode = MMCO_LONG;
mmco[0].long_arg = 0;
mmco_index = 1;
mmco_index = 1;
}
} else {
if (get_bits1(gb)) { // adaptive_ref_pic_marking_mode_flag
@@ -705,7 +731,7 @@ int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb,
MMCOOpcode opcode = get_ue_golomb_31(gb);

mmco[i].opcode = opcode;
if (opcode == MMCO_SHORT2UNUSED || opcode == MMCO_SHORT2LONG){
if (opcode == MMCO_SHORT2UNUSED || opcode == MMCO_SHORT2LONG) {
mmco[i].short_pic_num =
(h->curr_pic_num - get_ue_golomb(gb) - 1) &
(h->max_pic_num - 1);
@@ -725,7 +751,7 @@ int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb,
if (long_arg >= 32 ||
(long_arg >= 16 && !(opcode == MMCO_SET_MAX_LONG &&
long_arg == 16) &&
!(opcode == MMCO_LONG2UNUSED && FIELD_PICTURE))){
!(opcode == MMCO_LONG2UNUSED && FIELD_PICTURE))) {
av_log(h->avctx, AV_LOG_ERROR,
"illegal long ref in memory management control "
"operation %d\n", opcode);
@@ -734,7 +760,7 @@ int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb,
mmco[i].long_arg = long_arg;
}

if (opcode > (unsigned) MMCO_LONG){
if (opcode > (unsigned) MMCO_LONG) {
av_log(h->avctx, AV_LOG_ERROR,
"illegal memory management control operation %d\n",
opcode);


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