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lavfi/setfield: rename variable top_field_first to mode 

The new name better reflects the meaning of the variable, after the
recent change.
This commit is contained in:
Stefano Sabatini 2012-04-21 10:26:30 +02:00
parent c97201dd29
commit 459414b4d9
1 changed files with 19 additions and 12 deletions
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31
libavfilter/vf_setfield.c
View File

@ -25,32 +25,39 @@
#include "avfilter.h"
enum SetFieldMode {
MODE_AUTO = -1,
MODE_BFF,
MODE_TFF,
MODE_PROG,
};
typedef struct {
int top_field_first;
enum SetFieldMode mode;
} SetFieldContext;
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{
SetFieldContext *setfield = ctx->priv;
setfield->top_field_first = -1;
setfield->mode = MODE_AUTO;
if (args) {
char c;
if (sscanf(args, "%d%c", &setfield->top_field_first, &c) != 1) {
if (!strcmp("tff", args)) setfield->top_field_first = 1;
else if (!strcmp("bff", args)) setfield->top_field_first = 0;
else if (!strcmp("prog", args)) setfield->top_field_first = 2;
else if (!strcmp("auto", args)) setfield->top_field_first = -1;
if (sscanf(args, "%d%c", &setfield->mode, &c) != 1) {
if (!strcmp("tff", args)) setfield->mode = MODE_TFF;
else if (!strcmp("bff", args)) setfield->mode = MODE_BFF;
else if (!strcmp("prog", args)) setfield->mode = MODE_PROG;
else if (!strcmp("auto", args)) setfield->mode = MODE_AUTO;
else {
av_log(ctx, AV_LOG_ERROR, "Invalid argument '%s'\n", args);
return AVERROR(EINVAL);
}
} else {
if (setfield->top_field_first < -1 || setfield->top_field_first > 1) {
if (setfield->mode < -1 || setfield->mode > 1) {
av_log(ctx, AV_LOG_ERROR,
"Provided integer value %d must be included between -1 and +1\n",
setfield->top_field_first);
setfield->mode);
return AVERROR(EINVAL);
}
av_log(ctx, AV_LOG_WARNING,
@ -66,11 +73,11 @@ static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref)
SetFieldContext *setfield = inlink->dst->priv;
AVFilterBufferRef *outpicref = avfilter_ref_buffer(inpicref, ~0);
if (setfield->top_field_first == 2) {
if (setfield->mode == MODE_PROG) {
outpicref->video->interlaced = 0;
} else if (setfield->top_field_first != -1) {
} else if (setfield->mode != MODE_AUTO) {
outpicref->video->interlaced = 1;
outpicref->video->top_field_first = setfield->top_field_first;
outpicref->video->top_field_first = setfield->mode;
}
avfilter_start_frame(inlink->dst->outputs[0], outpicref);
}