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mpegvideo: move ff_draw_horiz_band() to mpegutils.c

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Drop the mpegvideo dependency for svq3 in configure.
This commit is contained in:
Vittorio Giovara 2014-03-12 10:18:54 +01:00
parent e0c16e4e32
commit be039278b5
6 changed files with 100 additions and 59 deletions
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2
configure vendored
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@ -1820,7 +1820,7 @@ sipr_decoder_select="lsp"
sp5x_decoder_select="mjpeg_decoder"
svq1_decoder_select="hpeldsp"
svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
svq3_decoder_select="h264_decoder hpeldsp mpegvideo"
svq3_decoder_select="h264_decoder hpeldsp"
svq3_decoder_suggest="zlib"
tak_decoder_select="dsputil"
theora_decoder_select="vp3_decoder"

5
libavcodec/Makefile
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@ -57,7 +57,8 @@ OBJS-$(CONFIG_MPEGAUDIODSP) += mpegaudiodsp.o \
mpegaudiodsp_data.o \
mpegaudiodsp_fixed.o \
mpegaudiodsp_float.o
OBJS-$(CONFIG_MPEGVIDEO) += mpegvideo.o mpegvideo_motion.o
OBJS-$(CONFIG_MPEGVIDEO) += mpegvideo.o mpegvideo_motion.o \
mpegutils.o
OBJS-$(CONFIG_MPEGVIDEOENC) += mpegvideo_enc.o mpeg12data.o \
motion_est.o ratecontrol.o
OBJS-$(CONFIG_RANGECODER) += rangecoder.o
@ -335,7 +336,7 @@ OBJS-$(CONFIG_SUNRAST_ENCODER) += sunrastenc.o
OBJS-$(CONFIG_SVQ1_DECODER) += svq1dec.o svq1.o svq13.o h263.o
OBJS-$(CONFIG_SVQ1_ENCODER) += svq1enc.o svq1.o \
h263.o ituh263enc.o
OBJS-$(CONFIG_SVQ3_DECODER) += svq3.o svq13.o
OBJS-$(CONFIG_SVQ3_DECODER) += svq3.o svq13.o mpegutils.o
OBJS-$(CONFIG_TAK_DECODER) += takdec.o tak.o
OBJS-$(CONFIG_TARGA_DECODER) += targa.o
OBJS-$(CONFIG_TARGA_ENCODER) += targaenc.o rle.o

80
libavcodec/mpegutils.c Normal file
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@ -0,0 +1,80 @@
/*
* Mpeg video formats-related defines and utility functions
*
* 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 <stdint.h>
#include "libavutil/common.h"
#include "libavutil/frame.h"
#include "libavutil/pixdesc.h"
#include "avcodec.h"
#include "mpegutils.h"
void ff_draw_horiz_band(AVCodecContext *avctx,
AVFrame *cur, AVFrame *last,
int y, int h, int picture_structure,
int first_field, int low_delay)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
int vshift = desc->log2_chroma_h;
const int field_pic = picture_structure != PICT_FRAME;
if (field_pic) {
h <<= 1;
y <<= 1;
}
h = FFMIN(h, avctx->height - y);
if (field_pic && first_field &&
!(avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD))
return;
if (avctx->draw_horiz_band) {
AVFrame *src;
int offset[AV_NUM_DATA_POINTERS];
int i;
if (cur->pict_type == AV_PICTURE_TYPE_B || low_delay ||
(avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
src = cur;
else if (last)
src = last;
else
return;
if (cur->pict_type == AV_PICTURE_TYPE_B &&
picture_structure == PICT_FRAME &&
avctx->codec_id != AV_CODEC_ID_SVQ3) {
for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
offset[i] = 0;
} else {
offset[0]= y * src->linesize[0];
offset[1]=
offset[2]= (y >> vshift) * src->linesize[1];
for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
offset[i] = 0;
}
emms_c();
avctx->draw_horiz_band(avctx, src, offset,
y, picture_structure, h);
}
}

16
libavcodec/mpegutils.h
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@ -21,8 +21,14 @@
#ifndef AVCODEC_MPEGUTILS_H
#define AVCODEC_MPEGUTILS_H
#include <stdint.h>
#include "libavutil/frame.h"
#include "avcodec.h"
#include "version.h"
/* picture type */
#define PICT_TOP_FIELD 1
#define PICT_BOTTOM_FIELD 2
@ -108,4 +114,14 @@
#define CANDIDATE_MB_TYPE_DIRECT0 (1 << 12)
/**
* Draw a horizontal band if supported.
*
* @param h is the normal height, this will be reduced automatically if needed
*/
void ff_draw_horiz_band(AVCodecContext *avctx, AVFrame *cur, AVFrame *last,
int y, int h, int picture_structure, int first_field,
int low_delay);
#endif /* AVCODEC_PICTTYPE_H */

53
libavcodec/mpegvideo.c
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@ -2311,59 +2311,6 @@ void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]){
MPV_decode_mb_internal(s, block, 0);
}
/**
* @param h is the normal height, this will be reduced automatically if needed for the last row
*/
void ff_draw_horiz_band(AVCodecContext *avctx,
AVFrame *cur, AVFrame *last,
int y, int h, int picture_structure,
int first_field, int low_delay)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
int vshift = desc->log2_chroma_h;
const int field_pic = picture_structure != PICT_FRAME;
if(field_pic){
h <<= 1;
y <<= 1;
}
h = FFMIN(h, avctx->height - y);
if(field_pic && first_field && !(avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)) return;
if (avctx->draw_horiz_band) {
AVFrame *src;
int offset[AV_NUM_DATA_POINTERS];
int i;
if (cur->pict_type == AV_PICTURE_TYPE_B || low_delay ||
(avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
src = cur;
else if (last)
src = last;
else
return;
if (cur->pict_type == AV_PICTURE_TYPE_B &&
picture_structure == PICT_FRAME &&
avctx->codec_id != AV_CODEC_ID_SVQ3) {
for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
offset[i] = 0;
}else{
offset[0]= y * src->linesize[0];
offset[1]=
offset[2]= (y >> vshift) * src->linesize[1];
for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
offset[i] = 0;
}
emms_c();
avctx->draw_horiz_band(avctx, src, offset,
y, picture_structure, h);
}
}
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
{
ff_draw_horiz_band(s->avctx, &s->current_picture.f,

3
libavcodec/mpegvideo.h
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@ -710,9 +710,6 @@ void ff_MPV_common_init_x86(MpegEncContext *s);
void ff_MPV_common_init_arm(MpegEncContext *s);
void ff_MPV_common_init_ppc(MpegEncContext *s);
void ff_clean_intra_table_entries(MpegEncContext *s);
void ff_draw_horiz_band(AVCodecContext *avctx, AVFrame *cur, AVFrame *last,
int y, int h, int picture_structure, int first_field,
int low_delay);
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h);
void ff_mpeg_flush(AVCodecContext *avctx);
void ff_print_debug_info(MpegEncContext *s, Picture *p);