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winamp/Src/h264dec/ldecod/src/output.c

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/*!
************************************************************************
* \file output.c
*
* \brief
* Output an image and Trance support
*
* \author
* Main contributors (see contributors.h for copyright, address and affiliation details)
* - Karsten Suehring <suehring@hhi.de>
************************************************************************
*/
#include "contributors.h"
#include "global.h"
#include "mbuffer.h"
#include "image.h"
#include "memalloc.h"
#include "sei.h"
static void write_out_picture(VideoParameters *p_Vid, StorablePicture *p);
#if (PAIR_FIELDS_IN_OUTPUT)
void clear_picture(VideoParameters *p_Vid, StorablePicture *p);
/*!
************************************************************************
* \brief
* output the pending frame buffer
* \param p_out
* Output file
************************************************************************
*/
void flush_pending_output(VideoParameters *p_Vid)
{
if (p_Vid->pending_output_state != FRAME)
{
write_out_picture(p_Vid, p_Vid->pending_output);
}
if (p_Vid->pending_output->imgY)
{
free_mem2Dpel (p_Vid->pending_output->imgY);
p_Vid->pending_output->imgY=NULL;
}
if (p_Vid->pending_output->imgUV)
{
free_mem3Dpel (p_Vid->pending_output->imgUV);
p_Vid->pending_output->imgUV=NULL;
}
p_Vid->pending_output_state = FRAME;
}
/*!
************************************************************************
* \brief
* Writes out a storable picture
* If the picture is a field, the output buffers the picture and tries
* to pair it with the next field.
* \param p
* Picture to be written
* \param p_out
* Output file
************************************************************************
*/
void write_picture(VideoParameters *p_Vid, StorablePicture *p, int real_structure)
{
int i, add;
if (real_structure==FRAME)
{
flush_pending_output(p_Vid);
write_out_picture(p_Vid, p);
return;
}
if (real_structure == p_Vid->pending_output_state)
{
flush_pending_output(p_Vid);
write_picture(p_Vid, p, real_structure);
return;
}
if (p_Vid->pending_output_state == FRAME)
{
p_Vid->pending_output->size_x = p->size_x;
p_Vid->pending_output->size_y = p->size_y;
p_Vid->pending_output->size_x_cr = p->size_x_cr;
p_Vid->pending_output->size_y_cr = p->size_y_cr;
p_Vid->pending_output->chroma_format_idc = p->chroma_format_idc;
p_Vid->pending_output->frame_mbs_only_flag = p->frame_mbs_only_flag;
p_Vid->pending_output->frame_cropping_flag = p->frame_cropping_flag;
if (p_Vid->pending_output->frame_cropping_flag)
{
p_Vid->pending_output->frame_cropping_rect_left_offset = p->frame_cropping_rect_left_offset;
p_Vid->pending_output->frame_cropping_rect_right_offset = p->frame_cropping_rect_right_offset;
p_Vid->pending_output->frame_cropping_rect_top_offset = p->frame_cropping_rect_top_offset;
p_Vid->pending_output->frame_cropping_rect_bottom_offset = p->frame_cropping_rect_bottom_offset;
}
get_mem2Dpel (&(p_Vid->pending_output->imgY), p_Vid->pending_output->size_y, p_Vid->pending_output->size_x);
get_mem3Dpel (&(p_Vid->pending_output->imgUV), 2, p_Vid->pending_output->size_y_cr, p_Vid->pending_output->size_x_cr);
clear_picture(p_Vid, p_Vid->pending_output);
// copy first field
if (real_structure == TOP_FIELD)
{
add = 0;
}
else
{
add = 1;
}
for (i=0; i<p_Vid->pending_output->size_y; i+=2)
{
memcpy(p_Vid->pending_output->imgY[(i+add)], p->imgY[(i+add)], p->size_x * sizeof(imgpel));
}
for (i=0; i<p_Vid->pending_output->size_y_cr; i+=2)
{
memcpy(p_Vid->pending_output->imgUV[0][(i+add)], p->imgUV[0][(i+add)], p->size_x_cr * sizeof(imgpel));
memcpy(p_Vid->pending_output->imgUV[1][(i+add)], p->imgUV[1][(i+add)], p->size_x_cr * sizeof(imgpel));
}
p_Vid->pending_output_state = real_structure;
}
else
{
if ( (p_Vid->pending_output->size_x!=p->size_x) || (p_Vid->pending_output->size_y!= p->size_y)
|| (p_Vid->pending_output->frame_mbs_only_flag != p->frame_mbs_only_flag)
|| (p_Vid->pending_output->frame_cropping_flag != p->frame_cropping_flag)
|| ( p_Vid->pending_output->frame_cropping_flag &&
( (p_Vid->pending_output->frame_cropping_rect_left_offset != p->frame_cropping_rect_left_offset)
||(p_Vid->pending_output->frame_cropping_rect_right_offset != p->frame_cropping_rect_right_offset)
||(p_Vid->pending_output->frame_cropping_rect_top_offset != p->frame_cropping_rect_top_offset)
||(p_Vid->pending_output->frame_cropping_rect_bottom_offset != p->frame_cropping_rect_bottom_offset)
)
)
)
{
flush_pending_output(p_Vid);
write_picture (p_Vid, p, real_structure);
return;
}
// copy second field
if (real_structure == TOP_FIELD)
{
add = 0;
}
else
{
add = 1;
}
for (i=0; i<p_Vid->pending_output->size_y; i+=2)
{
memcpy(p_Vid->pending_output->imgY[(i+add)], p->imgY[(i+add)], p->size_x * sizeof(imgpel));
}
for (i=0; i<p_Vid->pending_output->size_y_cr; i+=2)
{
memcpy(p_Vid->pending_output->imgUV[0][(i+add)], p->imgUV[0][(i+add)], p->size_x_cr * sizeof(imgpel));
memcpy(p_Vid->pending_output->imgUV[1][(i+add)], p->imgUV[1][(i+add)], p->size_x_cr * sizeof(imgpel));
}
p_Vid->pending_output->time_code = p->time_code;
flush_pending_output(p_Vid);
}
}
#else
/*!
************************************************************************
* \brief
* Writes out a storable picture without doing any output modifications
*
* \param p_Vid
* image decoding parameters for current picture
* \param p
* Picture to be written
* \param p_out
* Output file
* \param real_structure
* real picture structure
************************************************************************
*/
static void write_picture(VideoParameters *p_Vid, StorablePicture *p, int real_structure)
{
write_out_picture(p_Vid, p);
}
#endif
/*!
************************************************************************
* \brief
* Writes out a storable picture
*
* \param p_Vid
* image decoding parameters for current picture
* \param p
* Picture to be written
* \param p_out
* Output file
************************************************************************
*/
static void write_out_picture(VideoParameters *p_Vid, StorablePicture *p)
{
#if 0
InputParameters *p_Inp = p_Vid->p_Inp;
static const int SubWidthC [4]= { 1, 2, 2, 1};
static const int SubHeightC [4]= { 1, 2, 1, 1};
int crop_left, crop_right, crop_top, crop_bottom;
int symbol_size_in_bytes = (p_Vid->pic_unit_bitsize_on_disk >> 3);
Boolean rgb_output = (Boolean) (p_Vid->active_sps->vui_seq_parameters.matrix_coefficients==0);
unsigned char *buf;
int ret;
if (p->non_existing)
return;
printf("*** Outputting poc %d, frame_num %d, frame_poc %d, pic_num %d\n", p->poc, p->frame_num, p->frame_poc, p->pic_num);
#if (ENABLE_OUTPUT_TONEMAPPING)
// note: this tone-mapping is working for RGB format only. Sharp
if (p->seiHasTone_mapping && rgb_output)
{
//printf("output frame %d with tone model id %d\n", p->frame_num, p->tone_mapping_model_id);
symbol_size_in_bytes = (p->tonemapped_bit_depth>8)? 2 : 1;
tone_map(p->imgY, p->tone_mapping_lut, p->size_x, p->size_y);
tone_map(p->imgUV[0], p->tone_mapping_lut, p->size_x_cr, p->size_y_cr);
tone_map(p->imgUV[1], p->tone_mapping_lut, p->size_x_cr, p->size_y_cr);
}
#endif
if (p->frame_cropping_flag)
{
crop_left = SubWidthC[p->chroma_format_idc] * p->frame_cropping_rect_left_offset;
crop_right = SubWidthC[p->chroma_format_idc] * p->frame_cropping_rect_right_offset;
crop_top = SubHeightC[p->chroma_format_idc]*( 2 - p->frame_mbs_only_flag ) * p->frame_cropping_rect_top_offset;
crop_bottom = SubHeightC[p->chroma_format_idc]*( 2 - p->frame_mbs_only_flag ) * p->frame_cropping_rect_bottom_offset;
}
else
{
crop_left = crop_right = crop_top = crop_bottom = 0;
}
//printf ("write frame size: %dx%d\n", p->size_x-crop_left-crop_right,p->size_y-crop_top-crop_bottom );
initOutput(p_Vid, symbol_size_in_bytes);
// KS: this buffer should actually be allocated only once, but this is still much faster than the previous version
buf = malloc (p->size_x*p->size_y*symbol_size_in_bytes);
if (NULL==buf)
{
no_mem_exit("write_out_picture: buf");
}
if(rgb_output)
{
crop_left = p->frame_cropping_rect_left_offset;
crop_right = p->frame_cropping_rect_right_offset;
crop_top = ( 2 - p->frame_mbs_only_flag ) * p->frame_cropping_rect_top_offset;
crop_bottom = ( 2 - p->frame_mbs_only_flag ) * p->frame_cropping_rect_bottom_offset;
p_Vid->img2buf (p->imgUV[1], buf, p->size_x_cr, p->size_y_cr, symbol_size_in_bytes, crop_left, crop_right, crop_top, crop_bottom);
ret = write(p_out, buf, (p->size_y_cr-crop_bottom-crop_top)*(p->size_x_cr-crop_right-crop_left)*symbol_size_in_bytes);
if (ret != ((p->size_y_cr-crop_bottom-crop_top)*(p->size_x_cr-crop_right-crop_left)*symbol_size_in_bytes))
{
error ("write_out_picture: error writing to RGB file", 500);
}
if (p->frame_cropping_flag)
{
crop_left = SubWidthC[p->chroma_format_idc] * p->frame_cropping_rect_left_offset;
crop_right = SubWidthC[p->chroma_format_idc] * p->frame_cropping_rect_right_offset;
crop_top = SubHeightC[p->chroma_format_idc]*( 2 - p->frame_mbs_only_flag ) * p->frame_cropping_rect_top_offset;
crop_bottom = SubHeightC[p->chroma_format_idc]*( 2 - p->frame_mbs_only_flag ) * p->frame_cropping_rect_bottom_offset;
}
else
{
crop_left = crop_right = crop_top = crop_bottom = 0;
}
}
// write Y
p_Vid->img2buf (p->imgY, buf, p->size_x, p->size_y, symbol_size_in_bytes, crop_left, crop_right, crop_top, crop_bottom);
ret = write(p_out, buf, (p->size_y-crop_bottom-crop_top)*(p->size_x-crop_right-crop_left)*symbol_size_in_bytes);
if (ret != ((p->size_y-crop_bottom-crop_top)*(p->size_x-crop_right-crop_left)*symbol_size_in_bytes))
{
error ("write_out_picture: error writing to YUV file", 500);
}
if (p->chroma_format_idc!=YUV400)
{
crop_left = p->frame_cropping_rect_left_offset;
crop_right = p->frame_cropping_rect_right_offset;
crop_top = ( 2 - p->frame_mbs_only_flag ) * p->frame_cropping_rect_top_offset;
crop_bottom = ( 2 - p->frame_mbs_only_flag ) * p->frame_cropping_rect_bottom_offset;
p_Vid->img2buf (p->imgUV[0], buf, p->size_x_cr, p->size_y_cr, symbol_size_in_bytes, crop_left, crop_right, crop_top, crop_bottom);
ret = write(p_out, buf, (p->size_y_cr-crop_bottom-crop_top)*(p->size_x_cr-crop_right-crop_left)* symbol_size_in_bytes);
if (ret != ((p->size_y_cr-crop_bottom-crop_top)*(p->size_x_cr-crop_right-crop_left)* symbol_size_in_bytes))
{
error ("write_out_picture: error writing to YUV file", 500);
}
if (!rgb_output)
{
p_Vid->img2buf (p->imgUV[1], buf, p->size_x_cr, p->size_y_cr, symbol_size_in_bytes, crop_left, crop_right, crop_top, crop_bottom);
ret = write(p_out, buf, (p->size_y_cr-crop_bottom-crop_top)*(p->size_x_cr-crop_right-crop_left)*symbol_size_in_bytes);
if (ret != ((p->size_y_cr-crop_bottom-crop_top)*(p->size_x_cr-crop_right-crop_left)*symbol_size_in_bytes))
{
error ("write_out_picture: error writing to YUV file", 500);
}
}
}
else
{
if (p_Inp->write_uv)
{
int i,j;
imgpel cr_val = (imgpel) (1<<(p_Vid->bitdepth_luma - 1));
get_mem3Dpel (&(p->imgUV), 1, p->size_y/2, p->size_x/2);
for (j=0; j<p->size_y/2; j++)
for (i=0; i<p->size_x/2; i++)
p->imgUV[0][j][i]=cr_val;
// fake out U=V=128 to make a YUV 4:2:0 stream
p_Vid->img2buf (p->imgUV[0], buf, p->size_x/2, p->size_y/2, symbol_size_in_bytes, crop_left/2, crop_right/2, crop_top/2, crop_bottom/2);
ret = write(p_out, buf, symbol_size_in_bytes * (p->size_y-crop_bottom-crop_top)/2 * (p->size_x-crop_right-crop_left)/2 );
if (ret != (symbol_size_in_bytes * (p->size_y-crop_bottom-crop_top)/2 * (p->size_x-crop_right-crop_left)/2))
{
error ("write_out_picture: error writing to YUV file", 500);
}
ret = write(p_out, buf, symbol_size_in_bytes * (p->size_y-crop_bottom-crop_top)/2 * (p->size_x-crop_right-crop_left)/2 );
if (ret != (symbol_size_in_bytes * (p->size_y-crop_bottom-crop_top)/2 * (p->size_x-crop_right-crop_left)/2))
{
error ("write_out_picture: error writing to YUV file", 500);
}
free_mem3Dpel(p->imgUV);
p->imgUV=NULL;
}
}
free(buf);
#endif
if (p)
{
p->retain_count++;
out_storable_picture_add(p_Vid, p);
free_storable_picture(p_Vid, p); // release the reference we added above (out_storable_picture will add its own)
}
// fsync(p_out);
}
/*!
************************************************************************
* \brief
* Initialize output buffer for direct output
************************************************************************
*/
void init_out_buffer(VideoParameters *p_Vid)
{
p_Vid->out_buffer = alloc_frame_store();
#if (PAIR_FIELDS_IN_OUTPUT)
p_Vid->pending_output = calloc (sizeof(StorablePicture), 1);
if (NULL==p_Vid->pending_output) no_mem_exit("init_out_buffer");
p_Vid->pending_output->imgUV = NULL;
p_Vid->pending_output->imgY = NULL;
#endif
}
/*!
************************************************************************
* \brief
* Uninitialize output buffer for direct output
************************************************************************
*/
void uninit_out_buffer(VideoParameters *p_Vid)
{
free_frame_store(p_Vid, p_Vid->out_buffer);
p_Vid->out_buffer=NULL;
#if (PAIR_FIELDS_IN_OUTPUT)
flush_pending_output(p_Vid);
free (p_Vid->pending_output);
#endif
}
/*!
************************************************************************
* \brief
* Initialize picture memory with (Y:0,U:128,V:128)
************************************************************************
*/
void clear_picture(VideoParameters *p_Vid, StorablePicture *p)
{
int i,j;
for(i=0;i<p->size_y;i++)
{
for (j=0; j<p->size_x; j++)
p->imgY->img[i][j] = (imgpel) p_Vid->dc_pred_value_comp[0];
}
for(i=0;i<p->size_y_cr;i++)
{
for (j=0; j<p->size_x_cr; j++)
p->imgUV[0]->img[i][j] = (imgpel) p_Vid->dc_pred_value_comp[1];
}
for(i=0;i<p->size_y_cr;i++)
{
for (j=0; j<p->size_x_cr; j++)
p->imgUV[1]->img[i][j] = (imgpel) p_Vid->dc_pred_value_comp[2];
}
}
/*!
************************************************************************
* \brief
* Write out not paired direct output fields. A second empty field is generated
* and combined into the frame buffer.
*
* \param p_Vid
* image decoding parameters for current picture
* \param fs
* FrameStore that contains a single field
* \param p_out
* Output file
************************************************************************
*/
static void write_unpaired_field(VideoParameters *p_Vid, FrameStore* fs)
{
StorablePicture *p;
assert (fs->is_used<3);
if(fs->is_used & 0x01)
{
// we have a top field
// construct an empty bottom field
p = fs->top_field;
fs->bottom_field = alloc_storable_picture(p_Vid, BOTTOM_FIELD, p->size_x, 2*p->size_y, p->size_x_cr, 2*p->size_y_cr);
fs->bottom_field->chroma_format_idc = p->chroma_format_idc;
clear_picture(p_Vid, fs->bottom_field);
dpb_combine_field_yuv(p_Vid, fs);
write_picture (p_Vid, fs->frame, TOP_FIELD);
}
if(fs->is_used & 0x02)
{
// we have a bottom field
// construct an empty top field
p = fs->bottom_field;
fs->top_field = alloc_storable_picture(p_Vid, TOP_FIELD, p->size_x, 2*p->size_y, p->size_x_cr, 2*p->size_y_cr);
fs->top_field->chroma_format_idc = p->chroma_format_idc;
clear_picture(p_Vid, fs->top_field);
fs ->top_field->frame_cropping_flag = fs->bottom_field->frame_cropping_flag;
if(fs ->top_field->frame_cropping_flag)
{
fs ->top_field->frame_cropping_rect_top_offset = fs->bottom_field->frame_cropping_rect_top_offset;
fs ->top_field->frame_cropping_rect_bottom_offset = fs->bottom_field->frame_cropping_rect_bottom_offset;
fs ->top_field->frame_cropping_rect_left_offset = fs->bottom_field->frame_cropping_rect_left_offset;
fs ->top_field->frame_cropping_rect_right_offset = fs->bottom_field->frame_cropping_rect_right_offset;
}
dpb_combine_field_yuv(p_Vid, fs);
write_picture (p_Vid, fs->frame, BOTTOM_FIELD);
}
fs->is_used = 3;
}
/*!
************************************************************************
* \brief
* Write out unpaired fields from output buffer.
*
* \param p_Vid
* image decoding parameters for current picture
* \param p_out
* Output file
************************************************************************
*/
static void flush_direct_output(VideoParameters *p_Vid)
{
write_unpaired_field(p_Vid, p_Vid->out_buffer);
free_storable_picture(p_Vid, p_Vid->out_buffer->frame);
p_Vid->out_buffer->frame = NULL;
free_storable_picture(p_Vid, p_Vid->out_buffer->top_field);
p_Vid->out_buffer->top_field = NULL;
free_storable_picture(p_Vid, p_Vid->out_buffer->bottom_field);
p_Vid->out_buffer->bottom_field = NULL;
p_Vid->out_buffer->is_used = 0;
}
/*!
************************************************************************
* \brief
* Write a frame (from FrameStore)
*
* \param p_Vid
* image decoding parameters for current picture
* \param fs
* FrameStore containing the frame
* \param p_out
* Output file
************************************************************************
*/
void write_stored_frame( VideoParameters *p_Vid, FrameStore *fs)
{
// make sure no direct output field is pending
flush_direct_output(p_Vid);
if (fs->is_used<3)
{
write_unpaired_field(p_Vid, fs);
}
else
{
if (fs->recovery_frame)
p_Vid->recovery_flag = 1;
if ((!p_Vid->non_conforming_stream) || p_Vid->recovery_flag)
write_picture(p_Vid, fs->frame, FRAME);
}
fs->is_output = 1;
}
/*!
************************************************************************
* \brief
* Directly output a picture without storing it in the DPB. Fields
* are buffered before they are written to the file.
*
* \param p_Vid
* image decoding parameters for current picture
* \param p
* Picture for output
* \param p_out
* Output file
************************************************************************
*/
void direct_output(VideoParameters *p_Vid, StorablePicture *p)
{
InputParameters *p_Inp = p_Vid->p_Inp;
if (p->structure==FRAME)
{
// we have a frame (or complementary field pair)
// so output it directly
flush_direct_output(p_Vid);
write_picture (p_Vid, p, FRAME);
free_storable_picture(p_Vid, p);
return;
}
if (p->structure == TOP_FIELD)
{
if (p_Vid->out_buffer->is_used &1)
flush_direct_output(p_Vid);
p_Vid->out_buffer->top_field = p;
p_Vid->out_buffer->is_used |= 1;
}
if (p->structure == BOTTOM_FIELD)
{
if (p_Vid->out_buffer->is_used &2)
flush_direct_output(p_Vid);
p_Vid->out_buffer->bottom_field = p;
p_Vid->out_buffer->is_used |= 2;
}
if (p_Vid->out_buffer->is_used == 3)
{
// we have both fields, so output them
dpb_combine_field_yuv(p_Vid, p_Vid->out_buffer);
p_Vid->out_buffer->frame->time_code = p->time_code;
write_picture (p_Vid, p_Vid->out_buffer->frame, FRAME);
free_storable_picture(p_Vid, p_Vid->out_buffer->frame);
p_Vid->out_buffer->frame = NULL;
free_storable_picture(p_Vid, p_Vid->out_buffer->top_field);
p_Vid->out_buffer->top_field = NULL;
free_storable_picture(p_Vid, p_Vid->out_buffer->bottom_field);
p_Vid->out_buffer->bottom_field = NULL;
p_Vid->out_buffer->is_used = 0;
}
}
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