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h264: K&R formatting cosmetics

tags/n2.1
Diego Biurrun 12 years ago
parent
966689442e
commit
16c22122c7
1 changed files with 154 additions and 144 deletions
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  1. +154
    -144
      libavcodec/h264.c

+ 154
- 144
libavcodec/h264.c View File

@@ -25,6 +25,7 @@
* @author Michael Niedermayer <michaelni@gmx.at>
*/

#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "internal.h"
#include "cabac.h"
@@ -43,7 +44,6 @@
#include "svq3.h"
#include "thread.h"
#include "vdpau_internal.h"
#include "libavutil/avassert.h"

// #undef NDEBUG
#include <assert.h>
@@ -100,7 +100,7 @@ static void h264_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
int (*mv)[2][4][2],
int mb_x, int mb_y, int mb_intra, int mb_skipped)
{
H264Context *h = opaque;
H264Context *h = opaque;

h->mb_x = mb_x;
h->mb_y = mb_y;
@@ -132,7 +132,7 @@ void ff_h264_draw_horiz_band(H264Context *h, int y, int height)
const int field_pic = h->picture_structure != PICT_FRAME;
if (field_pic) {
height <<= 1;
y <<= 1;
y <<= 1;
}

height = FFMIN(height, avctx->height - y);
@@ -146,7 +146,7 @@ void ff_h264_draw_horiz_band(H264Context *h, int y, int height)
int i;

if (cur->f.pict_type == AV_PICTURE_TYPE_B || h->low_delay ||
(avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
(avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
src = &cur->f;
else if (last)
src = &last->f;
@@ -213,7 +213,6 @@ static int ref_picture(H264Context *h, Picture *dst, Picture *src)
if (ret < 0)
goto fail;


dst->qscale_table_buf = av_buffer_ref(src->qscale_table_buf);
dst->mb_type_buf = av_buffer_ref(src->mb_type_buf);
if (!dst->qscale_table_buf || !dst->mb_type_buf)
@@ -221,7 +220,7 @@ static int ref_picture(H264Context *h, Picture *dst, Picture *src)
dst->qscale_table = src->qscale_table;
dst->mb_type = src->mb_type;

for (i = 0; i < 2; i ++) {
for (i = 0; i < 2; i++) {
dst->motion_val_buf[i] = av_buffer_ref(src->motion_val_buf[i]);
dst->ref_index_buf[i] = av_buffer_ref(src->ref_index_buf[i]);
if (!dst->motion_val_buf[i] || !dst->ref_index_buf[i])
@@ -243,15 +242,15 @@ static int ref_picture(H264Context *h, Picture *dst, Picture *src)
memcpy(dst->ref_poc, src->ref_poc, sizeof(src->ref_poc));
memcpy(dst->ref_count, src->ref_count, sizeof(src->ref_count));

dst->poc = src->poc;
dst->frame_num = src->frame_num;
dst->mmco_reset = src->mmco_reset;
dst->pic_id = src->pic_id;
dst->long_ref = src->long_ref;
dst->mbaff = src->mbaff;
dst->field_picture = src->field_picture;
dst->needs_realloc = src->needs_realloc;
dst->reference = src->reference;
dst->poc = src->poc;
dst->frame_num = src->frame_num;
dst->mmco_reset = src->mmco_reset;
dst->pic_id = src->pic_id;
dst->long_ref = src->long_ref;
dst->mbaff = src->mbaff;
dst->field_picture = src->field_picture;
dst->needs_realloc = src->needs_realloc;
dst->reference = src->reference;

return 0;
fail:
@@ -259,7 +258,6 @@ fail:
return ret;
}


static int alloc_scratch_buffers(H264Context *h, int linesize)
{
int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
@@ -503,19 +501,21 @@ const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src,
length--;

#define STARTCODE_TEST \
if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) { \
if (src[i + 2] != 3) { \
/* startcode, so we must be past the end */ \
length = i; \
} \
break; \
}
if (i + 2 < length && src[i + 1] == 0 && src[i + 2] <= 3) { \
if (src[i + 2] != 3) { \
/* startcode, so we must be past the end */ \
length = i; \
} \
break; \
}

#if HAVE_FAST_UNALIGNED
#define FIND_FIRST_ZERO \
if (i > 0 && !src[i]) \
i--; \
while (src[i]) \
i++
if (i > 0 && !src[i]) \
i--; \
while (src[i]) \
i++

#if HAVE_FAST_64BIT
for (i = 0; i + 1 < length; i += 9) {
if (!((~AV_RN64A(src + i) &
@@ -583,8 +583,8 @@ const uint8_t *ff_h264_decode_nal(H264Context *h, const uint8_t *src,
}
while (si < length)
dst[di++] = src[si++];
nsc:

nsc:
memset(dst + di, 0, FF_INPUT_BUFFER_PADDING_SIZE);

*dst_length = di;
@@ -616,12 +616,12 @@ static int decode_rbsp_trailing(H264Context *h, const uint8_t *src)
static inline int get_lowest_part_list_y(H264Context *h, Picture *pic, int n,
int height, int y_offset, int list)
{
int raw_my = h->mv_cache[list][scan8[n]][1];
int raw_my = h->mv_cache[list][scan8[n]][1];
int filter_height_up = (raw_my & 3) ? 2 : 0;
int filter_height_down = (raw_my & 3) ? 3 : 0;
int full_my = (raw_my >> 2) + y_offset;
int top = full_my - filter_height_up;
int bottom = full_my + filter_height_down + height;
int full_my = (raw_my >> 2) + y_offset;
int top = full_my - filter_height_up;
int bottom = full_my + filter_height_down + height;

return FFMAX(abs(top), bottom);
}
@@ -641,7 +641,7 @@ static inline void get_lowest_part_y(H264Context *h, int refs[2][48], int n,
// Error resilience puts the current picture in the ref list.
// Don't try to wait on these as it will cause a deadlock.
// Fields can wait on each other, though.
if (ref->tf.progress->data != h->cur_pic.tf.progress->data ||
if (ref->tf.progress->data != h->cur_pic.tf.progress->data ||
(ref->reference & 3) != h->picture_structure) {
my = get_lowest_part_list_y(h, ref, n, height, y_offset, 0);
if (refs[0][ref_n] < 0)
@@ -1204,8 +1204,8 @@ static void init_dequant_tables(H264Context *h)

int ff_h264_alloc_tables(H264Context *h)
{
const int big_mb_num = h->mb_stride * (h->mb_height + 1);
const int row_mb_num = h->mb_stride * 2 * h->avctx->thread_count;
const int big_mb_num = h->mb_stride * (h->mb_height + 1);
const int row_mb_num = h->mb_stride * 2 * h->avctx->thread_count;
int x, y, i;

FF_ALLOCZ_OR_GOTO(h->avctx, h->intra4x4_pred_mode,
@@ -1335,7 +1335,7 @@ static int context_init(H264Context *h)
er->mb_index2xy[x + y * h->mb_width] = x + y * h->mb_stride;

er->mb_index2xy[h->mb_height * h->mb_width] = (h->mb_height - 1) *
h->mb_stride + h->mb_width;
h->mb_stride + h->mb_width;

FF_ALLOCZ_OR_GOTO(h->avctx, er->error_status_table,
mb_array_size * sizeof(uint8_t), fail);
@@ -1458,7 +1458,7 @@ av_cold int ff_h264_decode_init(AVCodecContext *avctx)

ff_h264_decode_init_vlc();

h->pixel_shift = 0;
h->pixel_shift = 0;
h->sps.bit_depth_luma = avctx->bits_per_raw_sample = 8;

h->thread_context[0] = h;
@@ -1493,8 +1493,8 @@ av_cold int ff_h264_decode_init(AVCodecContext *avctx)
#undef REBASE_PICTURE
#define REBASE_PICTURE(pic, new_ctx, old_ctx) \
((pic && pic >= old_ctx->DPB && \
pic < old_ctx->DPB + MAX_PICTURE_COUNT) ? \
&new_ctx->DPB[pic - old_ctx->DPB] : NULL)
pic < old_ctx->DPB + MAX_PICTURE_COUNT) ? \
&new_ctx->DPB[pic - old_ctx->DPB] : NULL)

static void copy_picture_range(Picture **to, Picture **from, int count,
H264Context *new_base,
@@ -1560,10 +1560,10 @@ static int decode_update_thread_context(AVCodecContext *dst,
return 0;

if (inited &&
(h->width != h1->width ||
h->height != h1->height ||
h->mb_width != h1->mb_width ||
h->mb_height != h1->mb_height ||
(h->width != h1->width ||
h->height != h1->height ||
h->mb_width != h1->mb_width ||
h->mb_height != h1->mb_height ||
h->sps.bit_depth_luma != h1->sps.bit_depth_luma ||
h->sps.chroma_format_idc != h1->sps.chroma_format_idc ||
h->sps.colorspace != h1->sps.colorspace)) {
@@ -1619,12 +1619,12 @@ static int decode_update_thread_context(AVCodecContext *dst,
avcodec_get_frame_defaults(&h->cur_pic.f);
h->cur_pic.tf.f = &h->cur_pic.f;

h->avctx = dst;
h->DPB = NULL;
h->avctx = dst;
h->DPB = NULL;
h->qscale_table_pool = NULL;
h->mb_type_pool = NULL;
h->ref_index_pool = NULL;
h->motion_val_pool = NULL;
h->mb_type_pool = NULL;
h->ref_index_pool = NULL;
h->motion_val_pool = NULL;

if (ff_h264_alloc_tables(h) < 0) {
av_log(dst, AV_LOG_ERROR, "Could not allocate memory for h264\n");
@@ -1663,7 +1663,7 @@ static int decode_update_thread_context(AVCodecContext *dst,
return ret;
}

h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
unref_picture(h, &h->cur_pic);
if ((ret = ref_picture(h, &h->cur_pic, &h1->cur_pic)) < 0)
return ret;
@@ -1750,7 +1750,7 @@ static int h264_frame_start(H264Context *h)
}
pic = &h->DPB[i];

pic->reference = h->droppable ? 0 : h->picture_structure;
pic->reference = h->droppable ? 0 : h->picture_structure;
pic->f.coded_picture_number = h->coded_picture_number++;
pic->field_picture = h->picture_structure != PICT_FRAME;
/*
@@ -1832,7 +1832,7 @@ static void decode_postinit(H264Context *h, int setup_finished)
int i, pics, out_of_order, out_idx;
int invalid = 0, cnt = 0;

h->cur_pic_ptr->f.pict_type = h->pict_type;
h->cur_pic_ptr->f.pict_type = h->pict_type;

if (h->next_output_pic)
return;
@@ -2254,8 +2254,8 @@ static av_always_inline void hl_decode_mb_predict_luma(H264Context *h,
if (IS_INTRA4x4(mb_type)) {
if (IS_8x8DCT(mb_type)) {
if (transform_bypass) {
idct_dc_add =
idct_add = h->h264dsp.h264_add_pixels8_clear;
idct_dc_add =
idct_add = h->h264dsp.h264_add_pixels8_clear;
} else {
idct_dc_add = h->h264dsp.h264_idct8_dc_add;
idct_add = h->h264dsp.h264_idct8_add;
@@ -2338,7 +2338,8 @@ static av_always_inline void hl_decode_mb_predict_luma(H264Context *h,
0 * 16, 1 * 16, 4 * 16, 5 * 16,
2 * 16, 3 * 16, 6 * 16, 7 * 16,
8 * 16, 9 * 16, 12 * 16, 13 * 16,
10 * 16, 11 * 16, 14 * 16, 15 * 16 };
10 * 16, 11 * 16, 14 * 16, 15 * 16
};
for (i = 0; i < 16; i++)
dctcoef_set(h->mb + (p * 256 << pixel_shift),
pixel_shift, dc_mapping[i],
@@ -2438,7 +2439,8 @@ void ff_h264_hl_decode_mb(H264Context *h)
{
const int mb_xy = h->mb_xy;
const int mb_type = h->cur_pic.mb_type[mb_xy];
int is_complex = CONFIG_SMALL || h->is_complex || IS_INTRA_PCM(mb_type) || h->qscale == 0;
int is_complex = CONFIG_SMALL || h->is_complex ||
IS_INTRA_PCM(mb_type) || h->qscale == 0;

if (CHROMA444(h)) {
if (is_complex || h->pixel_shift)
@@ -2495,7 +2497,7 @@ static int pred_weight_table(H264Context *h)
h->chroma_weight[i][list][j][1] = get_se_golomb(&h->gb);
if (h->chroma_weight[i][list][j][0] != chroma_def ||
h->chroma_weight[i][list][j][1] != 0) {
h->use_weight_chroma = 1;
h->use_weight_chroma = 1;
h->chroma_weight_flag[list] = 1;
}
}
@@ -2537,7 +2539,7 @@ static void implicit_weight_table(H264Context *h, int field)
}
if (h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2 * cur_poc) {
h->use_weight = 0;
h->use_weight = 0;
h->use_weight_chroma = 0;
return;
}
@@ -2599,7 +2601,7 @@ static void flush_change(H264Context *h)
int i;
for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
h->last_pocs[i] = INT_MIN;
h->outputed_poc = h->next_outputed_poc = INT_MIN;
h->outputed_poc = h->next_outputed_poc = INT_MIN;
h->prev_interlaced_frame = 1;
idr(h);
if (h->cur_pic_ptr)
@@ -2654,9 +2656,11 @@ int ff_init_poc(H264Context *h, int pic_field_poc[2], int *pic_poc)
if (h->sps.poc_type == 0) {
const int max_poc_lsb = 1 << h->sps.log2_max_poc_lsb;

if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb / 2)
if (h->poc_lsb < h->prev_poc_lsb &&
h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb / 2)
h->poc_msb = h->prev_poc_msb + max_poc_lsb;
else if (h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb / 2)
else if (h->poc_lsb > h->prev_poc_lsb &&
h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb / 2)
h->poc_msb = h->prev_poc_msb - max_poc_lsb;
else
h->poc_msb = h->prev_poc_msb;
@@ -2996,7 +3000,7 @@ static int init_dimensions(H264Context *h)

av_log(h->avctx, AV_LOG_WARNING, "Ignoring cropping information.\n");
h->sps.crop_bottom = h->sps.crop_top = h->sps.crop_right = h->sps.crop_left = 0;
h->sps.crop = 0;
h->sps.crop = 0;

width = h->width;
height = h->height;
@@ -3034,7 +3038,7 @@ static int h264_slice_header_init(H264Context *h, int reinit)

if (reinit)
free_tables(h, 0);
h->first_field = 0;
h->first_field = 0;
h->prev_interlaced_frame = 1;

init_scan_tables(h);
@@ -3064,33 +3068,33 @@ static int h264_slice_header_init(H264Context *h, int reinit)
} else {
for (i = 1; i < h->slice_context_count; i++) {
H264Context *c;
c = h->thread_context[i] = av_mallocz(sizeof(H264Context));
c->avctx = h->avctx;
c->dsp = h->dsp;
c->vdsp = h->vdsp;
c->h264dsp = h->h264dsp;
c->h264qpel = h->h264qpel;
c->h264chroma = h->h264chroma;
c->sps = h->sps;
c->pps = h->pps;
c->pixel_shift = h->pixel_shift;
c->width = h->width;
c->height = h->height;
c->linesize = h->linesize;
c->uvlinesize = h->uvlinesize;
c->chroma_x_shift = h->chroma_x_shift;
c->chroma_y_shift = h->chroma_y_shift;
c->qscale = h->qscale;
c->droppable = h->droppable;
c = h->thread_context[i] = av_mallocz(sizeof(H264Context));
c->avctx = h->avctx;
c->dsp = h->dsp;
c->vdsp = h->vdsp;
c->h264dsp = h->h264dsp;
c->h264qpel = h->h264qpel;
c->h264chroma = h->h264chroma;
c->sps = h->sps;
c->pps = h->pps;
c->pixel_shift = h->pixel_shift;
c->width = h->width;
c->height = h->height;
c->linesize = h->linesize;
c->uvlinesize = h->uvlinesize;
c->chroma_x_shift = h->chroma_x_shift;
c->chroma_y_shift = h->chroma_y_shift;
c->qscale = h->qscale;
c->droppable = h->droppable;
c->data_partitioning = h->data_partitioning;
c->low_delay = h->low_delay;
c->mb_width = h->mb_width;
c->mb_height = h->mb_height;
c->mb_stride = h->mb_stride;
c->mb_num = h->mb_num;
c->flags = h->flags;
c->workaround_bugs = h->workaround_bugs;
c->pict_type = h->pict_type;
c->low_delay = h->low_delay;
c->mb_width = h->mb_width;
c->mb_height = h->mb_height;
c->mb_stride = h->mb_stride;
c->mb_num = h->mb_num;
c->flags = h->flags;
c->workaround_bugs = h->workaround_bugs;
c->pict_type = h->pict_type;

init_scan_tables(c);
clone_tables(c, h, i);
@@ -3250,7 +3254,6 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
(h->width != h->avctx->coded_width ||
h->height != h->avctx->coded_height ||
needs_reinit)) {

if (h != h0) {
av_log(h->avctx, AV_LOG_ERROR, "changing width/height on "
"slice %d\n", h0->current_slice + 1);
@@ -3407,7 +3410,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
if (h264_frame_start(h) < 0)
return -1;
h->prev_frame_num++;
h->prev_frame_num %= 1 << h->sps.log2_max_frame_num;
h->prev_frame_num %= 1 << h->sps.log2_max_frame_num;
h->cur_pic_ptr->frame_num = h->prev_frame_num;
ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
@@ -3417,17 +3420,22 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
if (ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index) < 0 &&
(h->avctx->err_recognition & AV_EF_EXPLODE))
return AVERROR_INVALIDDATA;
/* Error concealment: if a ref is missing, copy the previous ref in its place.
* FIXME: avoiding a memcpy would be nice, but ref handling makes many assumptions
* about there being no actual duplicates.
* FIXME: this doesn't copy padding for out-of-frame motion vectors. Given we're
* concealing a lost frame, this probably isn't noticeable by comparison, but it should
* be fixed. */
/* Error concealment: If a ref is missing, copy the previous ref
* in its place.
* FIXME: Avoiding a memcpy would be nice, but ref handling makes
* many assumptions about there being no actual duplicates.
* FIXME: This does not copy padding for out-of-frame motion
* vectors. Given we are concealing a lost frame, this probably
* is not noticeable by comparison, but it should be fixed. */
if (h->short_ref_count) {
if (prev) {
av_image_copy(h->short_ref[0]->f.data, h->short_ref[0]->f.linesize,
(const uint8_t **)prev->f.data, prev->f.linesize,
h->avctx->pix_fmt, h->mb_width * 16, h->mb_height * 16);
av_image_copy(h->short_ref[0]->f.data,
h->short_ref[0]->f.linesize,
(const uint8_t **)prev->f.data,
prev->f.linesize,
h->avctx->pix_fmt,
h->mb_width * 16,
h->mb_height * 16);
h->short_ref[0]->poc = prev->poc + 2;
}
h->short_ref[0]->frame_num = h->prev_frame_num;
@@ -3486,7 +3494,8 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
return -1;
}
h->resync_mb_x = h->mb_x = first_mb_in_slice % h->mb_width;
h->resync_mb_y = h->mb_y = (first_mb_in_slice / h->mb_width) << FIELD_OR_MBAFF_PICTURE(h);
h->resync_mb_y = h->mb_y = (first_mb_in_slice / h->mb_width) <<
FIELD_OR_MBAFF_PICTURE(h);
if (h->picture_structure == PICT_BOTTOM_FIELD)
h->resync_mb_y = h->mb_y = h->mb_y + 1;
assert(h->mb_y < h->mb_height);
@@ -3546,11 +3555,10 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
else
h->list_count = 1;
} else {
h->list_count = 0;
h->list_count = 0;
h->ref_count[0] = h->ref_count[1] = 0;
}


max_refs = h->picture_structure == PICT_FRAME ? 16 : 32;

if (h->ref_count[0] > max_refs || h->ref_count[1] > max_refs) {
@@ -3590,8 +3598,8 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
// corrupt, thus we only do this if frame-mt is enabled.
if (h->nal_ref_idc &&
ff_h264_decode_ref_pic_marking(h0, &h->gb,
!(h->avctx->active_thread_type & FF_THREAD_FRAME) ||
h0->current_slice == 0) < 0 &&
!(h->avctx->active_thread_type & FF_THREAD_FRAME) ||
h0->current_slice == 0) < 0 &&
(h->avctx->err_recognition & AV_EF_EXPLODE))
return AVERROR_INVALIDDATA;

@@ -3696,7 +3704,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
6 * (h->sps.bit_depth_luma - 8);

h0->last_slice_type = slice_type;
h->slice_num = ++h0->current_slice;
h->slice_num = ++h0->current_slice;
if (h->slice_num >= MAX_SLICES) {
av_log(h->avctx, AV_LOG_ERROR,
"Too many slices, increase MAX_SLICES and recompile\n");
@@ -3707,7 +3715,8 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
int *ref2frm = h->ref2frm[h->slice_num & (MAX_SLICES - 1)][j];
for (i = 0; i < 16; i++) {
id_list[i] = 60;
if (j < h->list_count && i < h->ref_count[j] && h->ref_list[j][i].f.buf[0]) {
if (j < h->list_count && i < h->ref_count[j] &&
h->ref_list[j][i].f.buf[0]) {
int k;
AVBuffer *buf = h->ref_list[j][i].f.buf[0]->buffer;
for (k = 0; k < h->short_ref_count; k++)
@@ -3723,13 +3732,12 @@ static int decode_slice_header(H264Context *h, H264Context *h0)
}
}

ref2frm[0] =
ref2frm[1] = -1;
ref2frm[0] =
ref2frm[1] = -1;
for (i = 0; i < 16; i++)
ref2frm[i + 2] = 4 * id_list[i] +
(h->ref_list[j][i].reference & 3);
ref2frm[18 + 0] =
ref2frm[18 + 1] = -1;
ref2frm[i + 2] = 4 * id_list[i] + (h->ref_list[j][i].reference & 3);
ref2frm[18 + 0] =
ref2frm[18 + 1] = -1;
for (i = 16; i < 48; i++)
ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
(h->ref_list[j][i].reference & 3);
@@ -3884,7 +3892,7 @@ static int fill_filter_caches(H264Context *h, int mb_type)
} else {
if (curr_mb_field_flag)
top_xy += h->mb_stride &
(((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
(((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
if (left_mb_field_flag != curr_mb_field_flag)
left_xy[LBOT] += h->mb_stride;
}
@@ -3966,18 +3974,18 @@ static int fill_filter_caches(H264Context *h, int mb_type)
* from what the loop filter needs */
if (!CABAC(h) && h->pps.transform_8x8_mode) {
if (IS_8x8DCT(top_type)) {
nnz_cache[4 + 8 * 0] =
nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
nnz_cache[6 + 8 * 0] =
nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
nnz_cache[4 + 8 * 0] =
nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
nnz_cache[6 + 8 * 0] =
nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
}
if (IS_8x8DCT(left_type[LTOP])) {
nnz_cache[3 + 8 * 1] =
nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
nnz_cache[3 + 8 * 1] =
nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
}
if (IS_8x8DCT(left_type[LBOT])) {
nnz_cache[3 + 8 * 3] =
nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
nnz_cache[3 + 8 * 3] =
nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
}

if (IS_8x8DCT(mb_type)) {
@@ -4177,7 +4185,7 @@ static int decode_slice(struct AVCodecContext *avctx, void *arg)
if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
h->cabac.bytestream > h->cabac.bytestream_end + 2) {
er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1,
h->mb_y, ER_MB_END);
h->mb_y, ER_MB_END);
if (h->mb_x >= lf_x_start)
loop_filter(h, lf_x_start, h->mb_x + 1);
return 0;
@@ -4188,7 +4196,7 @@ static int decode_slice(struct AVCodecContext *avctx, void *arg)
h->mb_x, h->mb_y,
h->cabac.bytestream_end - h->cabac.bytestream);
er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
h->mb_y, ER_MB_ERROR);
h->mb_y, ER_MB_ERROR);
return -1;
}

@@ -4208,7 +4216,7 @@ static int decode_slice(struct AVCodecContext *avctx, void *arg)
tprintf(h->avctx, "slice end %d %d\n",
get_bits_count(&h->gb), h->gb.size_in_bits);
er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1,
h->mb_y, ER_MB_END);
h->mb_y, ER_MB_END);
if (h->mb_x > lf_x_start)
loop_filter(h, lf_x_start, h->mb_x);
return 0;
@@ -4235,7 +4243,7 @@ static int decode_slice(struct AVCodecContext *avctx, void *arg)
av_log(h->avctx, AV_LOG_ERROR,
"error while decoding MB %d %d\n", h->mb_x, h->mb_y);
er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
h->mb_y, ER_MB_ERROR);
h->mb_y, ER_MB_ERROR);
return -1;
}

@@ -4255,14 +4263,14 @@ static int decode_slice(struct AVCodecContext *avctx, void *arg)

if (get_bits_left(&h->gb) == 0) {
er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
h->mb_x - 1, h->mb_y,
ER_MB_END);
h->mb_x - 1, h->mb_y,
ER_MB_END);

return 0;
} else {
er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
h->mb_x - 1, h->mb_y,
ER_MB_END);
h->mb_x - 1, h->mb_y,
ER_MB_END);

return -1;
}
@@ -4274,15 +4282,15 @@ static int decode_slice(struct AVCodecContext *avctx, void *arg)
get_bits_count(&h->gb), h->gb.size_in_bits);
if (get_bits_left(&h->gb) == 0) {
er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
h->mb_x - 1, h->mb_y,
ER_MB_END);
h->mb_x - 1, h->mb_y,
ER_MB_END);
if (h->mb_x > lf_x_start)
loop_filter(h, lf_x_start, h->mb_x);

return 0;
} else {
er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
h->mb_y, ER_MB_ERROR);
h->mb_y, ER_MB_ERROR);

return -1;
}
@@ -4310,8 +4318,8 @@ static int execute_decode_slices(H264Context *h, int context_count)
return decode_slice(avctx, &h);
} else {
for (i = 1; i < context_count; i++) {
hx = h->thread_context[i];
hx->er.error_count = 0;
hx = h->thread_context[i];
hx->er.error_count = 0;
}

avctx->execute(avctx, decode_slice, h->thread_context,
@@ -4330,6 +4338,8 @@ static int execute_decode_slices(H264Context *h, int context_count)
return 0;
}

static const uint8_t start_code[] = { 0x00, 0x00, 0x01 };

static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size,
int parse_extradata)
{
@@ -4476,8 +4486,8 @@ again:
idr(h); // FIXME ensure we don't lose some frames if there is reordering
case NAL_SLICE:
init_get_bits(&hx->gb, ptr, bit_length);
hx->intra_gb_ptr =
hx->inter_gb_ptr = &hx->gb;
hx->intra_gb_ptr =
hx->inter_gb_ptr = &hx->gb;
hx->data_partitioning = 0;

if ((err = decode_slice_header(hx, h)))
@@ -4514,11 +4524,11 @@ again:
return -1;
} else if (CONFIG_H264_VDPAU_DECODER &&
h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) {
static const uint8_t start_code[] = {
0x00, 0x00, 0x01 };
ff_vdpau_add_data_chunk(h->cur_pic_ptr->f.data[0], start_code,
ff_vdpau_add_data_chunk(h->cur_pic_ptr->f.data[0],
start_code,
sizeof(start_code));
ff_vdpau_add_data_chunk(h->cur_pic_ptr->f.data[0], &buf[buf_index - consumed],
ff_vdpau_add_data_chunk(h->cur_pic_ptr->f.data[0],
&buf[buf_index - consumed],
consumed);
} else
context_count++;
@@ -4651,7 +4661,7 @@ static int output_frame(H264Context *h, AVFrame *dst, AVFrame *src)
int hshift = (i > 0) ? h->chroma_x_shift : 0;
int vshift = (i > 0) ? h->chroma_y_shift : 0;
int off = ((h->sps.crop_left >> hshift) << h->pixel_shift) +
(h->sps.crop_top >> vshift) * dst->linesize[i];
(h->sps.crop_top >> vshift) * dst->linesize[i];
dst->data[i] += off;
}
return 0;
@@ -4667,7 +4677,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
int buf_index = 0;
int ret;

h->flags = avctx->flags;
h->flags = avctx->flags;

/* end of stream, output what is still in the buffers */
out:
@@ -4757,7 +4767,7 @@ av_cold void ff_h264_free_context(H264Context *h)

static av_cold int h264_decode_end(AVCodecContext *avctx)
{
H264Context *h = avctx->priv_data;
H264Context *h = avctx->priv_data;

ff_h264_free_context(h);

@@ -4814,7 +4824,7 @@ AVCodec ff_h264_vdpau_decoder = {
.flush = flush_dpb,
.long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)"),
.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_VDPAU_H264,
AV_PIX_FMT_NONE},
AV_PIX_FMT_NONE},
.profiles = NULL_IF_CONFIG_SMALL(profiles),
};
#endif

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