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Avoid usage of avcodec_get_pix_fmt_name() and

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avcodec_get_chroma_sub_sample(), directly access
av_pix_fmt_descriptors instead.

Remove some of the dependancies of lavfi on lavc.

Originally committed as revision 21575 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini 2010-01-31 16:33:29 +00:00
parent 971c55f186
commit b4b6645655
4 changed files with 12 additions and 8 deletions
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6
libavfilter/avfilter.c
View File

@ -22,6 +22,7 @@
/* #define DEBUG */
#include "libavcodec/imgconvert.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
unsigned avfilter_version(void) {
@ -183,7 +184,7 @@ static void dprintf_link(void *ctx, AVFilterLink *link, int end)
dprintf(ctx,
"link[%p s:%dx%d fmt:%-16s %-16s->%-16s]%s",
link, link->w, link->h,
avcodec_get_pix_fmt_name(link->format),
av_pix_fmt_descriptors[link->format].name,
link->src ? link->src->filter->name : "",
link->dst ? link->dst->filter->name : "",
end ? "\n" : "");
@ -298,7 +299,8 @@ void avfilter_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
/* copy the slice if needed for permission reasons */
if(link->srcpic) {
avcodec_get_chroma_sub_sample(link->format, &hsub, &vsub);
hsub = av_pix_fmt_descriptors[link->format].log2_chroma_w;
vsub = av_pix_fmt_descriptors[link->format].log2_chroma_h;
for(i = 0; i < 4; i ++) {
if(link->srcpic->data[i]) {

6
libavfilter/vf_scale.c
View File

@ -24,6 +24,7 @@
*/
#include "avfilter.h"
#include "libavutil/pixdesc.h"
#include "libswscale/swscale.h"
typedef struct {
@ -126,7 +127,7 @@ static int config_props(AVFilterLink *outlink)
SWS_BILINEAR, NULL, NULL, NULL);
av_log(ctx, AV_LOG_INFO, "w:%d h:%d fmt:%s\n",
outlink->w, outlink->h, avcodec_get_pix_fmt_name(outlink->format));
outlink->w, outlink->h, av_pix_fmt_descriptors[outlink->format].name);
scale->input_is_pal = inlink->format == PIX_FMT_PAL8 ||
inlink->format == PIX_FMT_BGR4_BYTE ||
@ -143,7 +144,8 @@ static void start_frame(AVFilterLink *link, AVFilterPicRef *picref)
AVFilterLink *outlink = link->dst->outputs[0];
AVFilterPicRef *outpicref;
avcodec_get_chroma_sub_sample(link->format, &scale->hsub, &scale->vsub);
scale->hsub = av_pix_fmt_descriptors[link->format].log2_chroma_w;
scale->vsub = av_pix_fmt_descriptors[link->format].log2_chroma_h;
outpicref = avfilter_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h);
outpicref->pts = picref->pts;

4
libavfilter/vf_slicify.c
View File

@ -24,6 +24,7 @@
*/
#include "avfilter.h"
#include "libavutil/pixdesc.h"
typedef struct {
int h; ///< output slice height
@ -44,9 +45,8 @@ static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
static int config_props(AVFilterLink *link)
{
SliceContext *slice = link->dst->priv;
int tmp;
avcodec_get_chroma_sub_sample(link->format, &tmp, &slice->vshift);
slice->vshift = av_pix_fmt_descriptors[link->format].log2_chroma_h;
/* ensure that slices play nice with chroma subsampling, and enforce
* a reasonable minimum size for the slices */

4
libavfilter/vf_vflip.c
View File

@ -23,6 +23,7 @@
* video vertical flip filter
*/
#include "libavutil/pixdesc.h"
#include "avfilter.h"
typedef struct {
@ -32,9 +33,8 @@ typedef struct {
static int config_input(AVFilterLink *link)
{
FlipContext *flip = link->dst->priv;
int tmp;
avcodec_get_chroma_sub_sample(link->format, &tmp, &flip->vsub);
flip->vsub = av_pix_fmt_descriptors[link->format].log2_chroma_h;
return 0;
}