RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-03-06 20:47:41 +00:00
Code Issues Projects Releases Wiki Activity

dv: Properly split decoder and encoder initialization

Browse Source
This commit is contained in:
Diego Biurrun 2014-02-07 11:04:24 +01:00
parent d2869aea04
commit e63b818dbe
3 changed files with 31 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
libavcodec/dv.c
View File

@ -235,7 +235,6 @@ int ff_dv_init_dynamic_tables(DVVideoContext *ctx, const DVprofile *d)
av_cold int ff_dvvideo_init(AVCodecContext *avctx)
{
DVVideoContext *s = avctx->priv_data;
DSPContext dsp;
static int done = 0;
int i, j;
@ -292,23 +291,6 @@ av_cold int ff_dvvideo_init(AVCodecContext *avctx)
ff_free_vlc(&dv_vlc);
}
/* Generic DSP setup */
ff_dsputil_init(&dsp, avctx);
ff_set_cmp(&dsp, dsp.ildct_cmp, avctx->ildct_cmp);
s->get_pixels = dsp.get_pixels;
s->ildct_cmp = dsp.ildct_cmp[5];
/* 88DCT setup */
s->fdct[0] = dsp.fdct;
s->idct_put[0] = dsp.idct_put;
for (i = 0; i < 64; i++)
s->dv_zigzag[0][i] = dsp.idct_permutation[ff_zigzag_direct[i]];
/* 248DCT setup */
s->fdct[1] = dsp.fdct248;
s->idct_put[1] = ff_simple_idct248_put; // FIXME: need to add it to DSP
memcpy(s->dv_zigzag[1], ff_dv_zigzag248_direct, sizeof(s->dv_zigzag[1]));
s->avctx = avctx;
avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;

21
libavcodec/dvdec.c
View File

@ -58,6 +58,25 @@ typedef struct BlockInfo {
static const int dv_iweight_bits = 14;
static av_cold int dvvideo_decode_init(AVCodecContext *avctx)
{
DVVideoContext *s = avctx->priv_data;
DSPContext dsp;
int i;
ff_dsputil_init(&dsp, avctx);
for (i = 0; i < 64; i++)
s->dv_zigzag[0][i] = dsp.idct_permutation[ff_zigzag_direct[i]];
memcpy(s->dv_zigzag[1], ff_dv_zigzag248_direct, sizeof(s->dv_zigzag[1]));
s->idct_put[0] = dsp.idct_put;
s->idct_put[1] = ff_simple_idct248_put;
return ff_dvvideo_init(avctx);
}
/* decode AC coefficients */
static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, int16_t *block)
{
@ -381,7 +400,7 @@ AVCodec ff_dvvideo_decoder = {
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_DVVIDEO,
.priv_data_size = sizeof(DVVideoContext),
.init = ff_dvvideo_init,
.init = dvvideo_decode_init,
.decode = dvvideo_decode_frame,
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_SLICE_THREADS,
};

11
libavcodec/dvenc.c
View File

@ -28,6 +28,7 @@
#include "libavutil/pixdesc.h"
#include "config.h"
#include "avcodec.h"
#include "dsputil.h"
#include "internal.h"
#include "put_bits.h"
#include "dv.h"
@ -36,6 +37,7 @@
static av_cold int dvvideo_encode_init(AVCodecContext *avctx)
{
DVVideoContext *s = avctx->priv_data;
DSPContext dsp;
int ret;
s->sys = avpriv_dv_codec_profile(avctx);
@ -58,6 +60,15 @@ static av_cold int dvvideo_encode_init(AVCodecContext *avctx)
dv_vlc_map_tableinit();
ff_dsputil_init(&dsp, avctx);
ff_set_cmp(&dsp, dsp.ildct_cmp, avctx->ildct_cmp);
s->get_pixels = dsp.get_pixels;
s->ildct_cmp = dsp.ildct_cmp[5];
s->fdct[0] = dsp.fdct;
s->fdct[1] = dsp.fdct248;
return ff_dvvideo_init(avctx);
}