0,0 → 1,136 |
/* |
* Copyright (c) 2009 Stefano Sabatini |
* |
* This file is part of FFmpeg. |
* |
* FFmpeg 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. |
* |
* FFmpeg 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 FFmpeg; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
*/ |
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#include <stdio.h> |
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#include "libavformat/avformat.h" |
#include "libavutil/pixdesc.h" |
#include "libavutil/samplefmt.h" |
#include "libavfilter/avfilter.h" |
#include "libavfilter/formats.h" |
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static void print_formats(AVFilterContext *filter_ctx) |
{ |
int i, j; |
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#define PRINT_FMTS(inout, outin, INOUT) \ |
for (i = 0; i < filter_ctx->nb_##inout##puts; i++) { \ |
if (filter_ctx->inout##puts[i]->type == AVMEDIA_TYPE_VIDEO) { \ |
AVFilterFormats *fmts = \ |
filter_ctx->inout##puts[i]->outin##_formats; \ |
for (j = 0; j < fmts->nb_formats; j++) \ |
if(av_get_pix_fmt_name(fmts->formats[j])) \ |
printf(#INOUT "PUT[%d] %s: fmt:%s\n", \ |
i, filter_ctx->filter->inout##puts[i].name, \ |
av_get_pix_fmt_name(fmts->formats[j])); \ |
} else if (filter_ctx->inout##puts[i]->type == AVMEDIA_TYPE_AUDIO) { \ |
AVFilterFormats *fmts; \ |
AVFilterChannelLayouts *layouts; \ |
\ |
fmts = filter_ctx->inout##puts[i]->outin##_formats; \ |
for (j = 0; j < fmts->nb_formats; j++) \ |
printf(#INOUT "PUT[%d] %s: fmt:%s\n", \ |
i, filter_ctx->filter->inout##puts[i].name, \ |
av_get_sample_fmt_name(fmts->formats[j])); \ |
\ |
layouts = filter_ctx->inout##puts[i]->outin##_channel_layouts; \ |
for (j = 0; j < layouts->nb_channel_layouts; j++) { \ |
char buf[256]; \ |
av_get_channel_layout_string(buf, sizeof(buf), -1, \ |
layouts->channel_layouts[j]); \ |
printf(#INOUT "PUT[%d] %s: chlayout:%s\n", \ |
i, filter_ctx->filter->inout##puts[i].name, buf); \ |
} \ |
} \ |
} \ |
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PRINT_FMTS(in, out, IN); |
PRINT_FMTS(out, in, OUT); |
} |
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int main(int argc, char **argv) |
{ |
AVFilter *filter; |
AVFilterContext *filter_ctx; |
AVFilterGraph *graph_ctx; |
const char *filter_name; |
const char *filter_args = NULL; |
int i; |
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av_log_set_level(AV_LOG_DEBUG); |
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if (argc < 2) { |
fprintf(stderr, "Missing filter name as argument\n"); |
return 1; |
} |
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filter_name = argv[1]; |
if (argc > 2) |
filter_args = argv[2]; |
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/* allocate graph */ |
graph_ctx = avfilter_graph_alloc(); |
if (!graph_ctx) |
return 1; |
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avfilter_register_all(); |
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/* get a corresponding filter and open it */ |
if (!(filter = avfilter_get_by_name(filter_name))) { |
fprintf(stderr, "Unrecognized filter with name '%s'\n", filter_name); |
return 1; |
} |
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/* open filter and add it to the graph */ |
if (!(filter_ctx = avfilter_graph_alloc_filter(graph_ctx, filter, filter_name))) { |
fprintf(stderr, "Impossible to open filter with name '%s'\n", |
filter_name); |
return 1; |
} |
if (avfilter_init_str(filter_ctx, filter_args) < 0) { |
fprintf(stderr, "Impossible to init filter '%s' with arguments '%s'\n", |
filter_name, filter_args); |
return 1; |
} |
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/* create a link for each of the input pads */ |
for (i = 0; i < filter_ctx->nb_inputs; i++) { |
AVFilterLink *link = av_mallocz(sizeof(AVFilterLink)); |
link->type = filter_ctx->filter->inputs[i].type; |
filter_ctx->inputs[i] = link; |
} |
for (i = 0; i < filter_ctx->nb_outputs; i++) { |
AVFilterLink *link = av_mallocz(sizeof(AVFilterLink)); |
link->type = filter_ctx->filter->outputs[i].type; |
filter_ctx->outputs[i] = link; |
} |
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if (filter->query_formats) |
filter->query_formats(filter_ctx); |
else |
ff_default_query_formats(filter_ctx); |
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print_formats(filter_ctx); |
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avfilter_free(filter_ctx); |
avfilter_graph_free(&graph_ctx); |
fflush(stdout); |
return 0; |
} |