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graphdump: use av_bprintf API.

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This commit is contained in:
Nicolas George 2012-02-01 21:33:39 +01:00
parent b75c67dc01
commit 6cf53927c4
1 changed files with 52 additions and 59 deletions
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111
libavfilter/graphdump.c
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@ -21,27 +21,22 @@
#include <string.h>
#include "libavutil/bprint.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "avfiltergraph.h"
#define BPRINTF(...) \
cur += snprintf(cur, buf_end - FFMIN(cur, buf_end), __VA_ARGS__)
#define BPAD(c, l) \
do { \
if (cur < buf_end) memset(cur, c, FFMIN(l, buf_end - cur)); cur += l; \
} while (0)
static int snprint_link_prop(char *buf, char *buf_end, AVFilterLink *link)
static int print_link_prop(AVBPrint *buf, AVFilterLink *link)
{
char *cur = buf, *format;
char *format;
char layout[64];
if (!buf)
buf = &(AVBPrint){ 0 }; /* dummy buffer */
switch (link->type) {
case AVMEDIA_TYPE_VIDEO:
format = av_x_if_null(av_get_pix_fmt_name(link->format), "?");
BPRINTF("[%dx%d %d:%d %s]", link->w, link->h,
av_bprintf(buf, "[%dx%d %d:%d %s]", link->w, link->h,
link->sample_aspect_ratio.num,
link->sample_aspect_ratio.den,
format);
@ -51,23 +46,21 @@ static int snprint_link_prop(char *buf, char *buf_end, AVFilterLink *link)
av_get_channel_layout_string(layout, sizeof(layout),
-1, link->channel_layout);
format = av_x_if_null(av_get_sample_fmt_name(link->format), "?");
BPRINTF("[%dHz %s:%s:%s]",
av_bprintf(buf, "[%dHz %s:%s:%s]",
(int)link->sample_rate, format, layout,
link->planar ? "planar" : "packed");
break;
default:
BPRINTF("?");
av_bprintf(buf, "?");
break;
}
return cur - buf;
return buf->len;
}
static size_t avfilter_graph_dump_to_buf(AVFilterGraph *graph,
char *buf, char *buf_end)
static void avfilter_graph_dump_to_buf(AVBPrint *buf, AVFilterGraph *graph)
{
char *cur = buf, *e;
unsigned i, j, x;
unsigned i, j, x, e;
for (i = 0; i < graph->filter_count; i++) {
AVFilterContext *filter = graph->filters[i];
@ -83,23 +76,23 @@ static size_t avfilter_graph_dump_to_buf(AVFilterGraph *graph,
unsigned ln = strlen(l->src->name) + 1 + strlen(l->srcpad->name);
max_src_name = FFMAX(max_src_name, ln);
max_in_name = FFMAX(max_in_name, strlen(l->dstpad->name));
max_in_fmt = FFMAX(max_in_fmt, snprint_link_prop(NULL, NULL, l));
max_in_fmt = FFMAX(max_in_fmt, print_link_prop(NULL, l));
}
for (j = 0; j < filter->output_count; j++) {
AVFilterLink *l = filter->outputs[j];
unsigned ln = strlen(l->dst->name) + 1 + strlen(l->dstpad->name);
max_dst_name = FFMAX(max_dst_name, ln);
max_out_name = FFMAX(max_out_name, strlen(l->srcpad->name));
max_out_fmt = FFMAX(max_out_fmt, snprint_link_prop(NULL, NULL, l));
max_out_fmt = FFMAX(max_out_fmt, print_link_prop(NULL, l));
}
in_indent = max_src_name + max_in_name + max_in_fmt;
in_indent += in_indent ? 4 : 0;
width = FFMAX(lname + 2, ltype + 4);
height = FFMAX3(2, filter->input_count, filter->output_count);
BPAD(' ', in_indent);
BPRINTF("+");
BPAD('-', width);
BPRINTF("+\n");
av_bprint_chars(buf, ' ', in_indent);
av_bprintf(buf, "+");
av_bprint_chars(buf, '-', width);
av_bprintf(buf, "+\n");
for (j = 0; j < height; j++) {
unsigned in_no = j - (height - filter->input_count ) / 2;
unsigned out_no = j - (height - filter->output_count) / 2;
@ -107,65 +100,65 @@ static size_t avfilter_graph_dump_to_buf(AVFilterGraph *graph,
/* Input link */
if (in_no < filter->input_count) {
AVFilterLink *l = filter->inputs[in_no];
e = cur + max_src_name + 2;
BPRINTF("%s:%s", l->src->name, l->srcpad->name);
BPAD('-', e - cur);
e = cur + max_in_fmt + 2 +
e = buf->len + max_src_name + 2;
av_bprintf(buf, "%s:%s", l->src->name, l->srcpad->name);
av_bprint_chars(buf, '-', e - buf->len);
e = buf->len + max_in_fmt + 2 +
max_in_name - strlen(l->dstpad->name);
cur += snprint_link_prop(cur, buf_end, l);
BPAD('-', e - cur);
BPRINTF("%s", l->dstpad->name);
print_link_prop(buf, l);
av_bprint_chars(buf, '-', e - buf->len);
av_bprintf(buf, "%s", l->dstpad->name);
} else {
BPAD(' ', in_indent);
av_bprint_chars(buf, ' ', in_indent);
}
/* Filter */
BPRINTF("|");
av_bprintf(buf, "|");
if (j == (height - 2) / 2) {
x = (width - lname) / 2;
BPRINTF("%*s%-*s", x, "", width - x, filter->name);
av_bprintf(buf, "%*s%-*s", x, "", width - x, filter->name);
} else if (j == (height - 2) / 2 + 1) {
x = (width - ltype - 2) / 2;
BPRINTF("%*s(%s)%*s", x, "", filter->filter->name,
av_bprintf(buf, "%*s(%s)%*s", x, "", filter->filter->name,
width - ltype - 2 - x, "");
} else {
BPAD(' ', width);
av_bprint_chars(buf, ' ', width);
}
BPRINTF("|");
av_bprintf(buf, "|");
/* Output link */
if (out_no < filter->output_count) {
AVFilterLink *l = filter->outputs[out_no];
unsigned ln = strlen(l->dst->name) + 1 +
strlen(l->dstpad->name);
e = cur + max_out_name + 2;
BPRINTF("%s", l->srcpad->name);
BPAD('-', e - cur);
e = cur + max_out_fmt + 2 +
e = buf->len + max_out_name + 2;
av_bprintf(buf, "%s", l->srcpad->name);
av_bprint_chars(buf, '-', e - buf->len);
e = buf->len + max_out_fmt + 2 +
max_dst_name - ln;
cur += snprint_link_prop(cur, buf_end, l);
BPAD('-', e - cur);
BPRINTF("%s:%s", l->dst->name, l->dstpad->name);
print_link_prop(buf, l);
av_bprint_chars(buf, '-', e - buf->len);
av_bprintf(buf, "%s:%s", l->dst->name, l->dstpad->name);
}
BPRINTF("\n");
av_bprintf(buf, "\n");
}
BPAD(' ', in_indent);
BPRINTF("+");
BPAD('-', width);
BPRINTF("+\n");
BPRINTF("\n");
av_bprint_chars(buf, ' ', in_indent);
av_bprintf(buf, "+");
av_bprint_chars(buf, '-', width);
av_bprintf(buf, "+\n");
av_bprintf(buf, "\n");
}
if (cur < buf_end)
*(cur++) = 0;
return cur - buf;
}
char *avfilter_graph_dump(AVFilterGraph *graph, const char *options)
{
size_t buf_size = avfilter_graph_dump_to_buf(graph, NULL, NULL);
char *buf = av_malloc(buf_size);
if (!buf)
return NULL;
avfilter_graph_dump_to_buf(graph, buf, buf + buf_size);
return buf;
AVBPrint buf;
char *dump;
av_bprint_init(&buf, 0, 0);
avfilter_graph_dump_to_buf(&buf, graph);
av_bprint_init(&buf, buf.len + 1, buf.len + 1);
avfilter_graph_dump_to_buf(&buf, graph);
av_bprint_finalize(&buf, &dump);
return dump;
}