mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-30 19:32:13 +00:00
131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "error_resilience.h"
|
|
#include "mpegvideo.h"
|
|
#include "mpeg_er.h"
|
|
|
|
static void set_erpic(ERPicture *dst, Picture *src)
|
|
{
|
|
int i;
|
|
|
|
if (!src) {
|
|
dst->f = NULL;
|
|
dst->tf = NULL;
|
|
return;
|
|
}
|
|
|
|
dst->f = src->f;
|
|
dst->tf = &src->tf;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
dst->motion_val[i] = src->motion_val[i];
|
|
dst->ref_index[i] = src->ref_index[i];
|
|
}
|
|
|
|
dst->mb_type = src->mb_type;
|
|
dst->field_picture = src->field_picture;
|
|
}
|
|
|
|
void ff_mpeg_er_frame_start(MpegEncContext *s)
|
|
{
|
|
ERContext *er = &s->er;
|
|
|
|
set_erpic(&er->cur_pic, s->current_picture_ptr);
|
|
set_erpic(&er->next_pic, s->next_picture_ptr);
|
|
set_erpic(&er->last_pic, s->last_picture_ptr);
|
|
|
|
er->pp_time = s->pp_time;
|
|
er->pb_time = s->pb_time;
|
|
er->quarter_sample = s->quarter_sample;
|
|
er->partitioned_frame = s->partitioned_frame;
|
|
|
|
ff_er_frame_start(er);
|
|
}
|
|
|
|
static void mpeg_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)
|
|
{
|
|
MpegEncContext *s = opaque;
|
|
|
|
s->mv_dir = mv_dir;
|
|
s->mv_type = mv_type;
|
|
s->mb_intra = mb_intra;
|
|
s->mb_skipped = mb_skipped;
|
|
s->mb_x = mb_x;
|
|
s->mb_y = mb_y;
|
|
memcpy(s->mv, mv, sizeof(*mv));
|
|
|
|
ff_init_block_index(s);
|
|
ff_update_block_index(s);
|
|
|
|
s->bdsp.clear_blocks(s->block[0]);
|
|
|
|
s->dest[0] = s->current_picture.f->data[0] +
|
|
s->mb_y * 16 * s->linesize +
|
|
s->mb_x * 16;
|
|
s->dest[1] = s->current_picture.f->data[1] +
|
|
s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize +
|
|
s->mb_x * (16 >> s->chroma_x_shift);
|
|
s->dest[2] = s->current_picture.f->data[2] +
|
|
s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize +
|
|
s->mb_x * (16 >> s->chroma_x_shift);
|
|
|
|
if (ref)
|
|
av_log(s->avctx, AV_LOG_DEBUG,
|
|
"Interlaced error concealment is not fully implemented\n");
|
|
ff_mpv_decode_mb(s, s->block);
|
|
}
|
|
|
|
int ff_mpeg_er_init(MpegEncContext *s)
|
|
{
|
|
ERContext *er = &s->er;
|
|
int mb_array_size = s->mb_height * s->mb_stride;
|
|
int i;
|
|
|
|
er->avctx = s->avctx;
|
|
|
|
er->mb_index2xy = s->mb_index2xy;
|
|
er->mb_num = s->mb_num;
|
|
er->mb_width = s->mb_width;
|
|
er->mb_height = s->mb_height;
|
|
er->mb_stride = s->mb_stride;
|
|
er->b8_stride = s->b8_stride;
|
|
|
|
er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride);
|
|
er->error_status_table = av_mallocz(mb_array_size);
|
|
if (!er->er_temp_buffer || !er->error_status_table)
|
|
goto fail;
|
|
|
|
er->mbskip_table = s->mbskip_table;
|
|
er->mbintra_table = s->mbintra_table;
|
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
|
|
er->dc_val[i] = s->dc_val[i];
|
|
|
|
er->decode_mb = mpeg_er_decode_mb;
|
|
er->opaque = s;
|
|
|
|
return 0;
|
|
fail:
|
|
av_freep(&er->er_temp_buffer);
|
|
av_freep(&er->error_status_table);
|
|
return AVERROR(ENOMEM);
|
|
}
|