diff options
Diffstat (limited to 'libavfilter/filtfmts.c')
| -rw-r--r-- | libavfilter/filtfmts.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/libavfilter/filtfmts.c b/libavfilter/filtfmts.c new file mode 100644 index 0000000000..f47bf38c5a --- /dev/null +++ b/libavfilter/filtfmts.c @@ -0,0 +1,130 @@ +/* + * 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 + */ + +#include <stdio.h> + +#include "libavformat/avformat.h" +#include "libavutil/pixdesc.h" +#include "libavutil/samplefmt.h" +#include "libavfilter/avfilter.h" +#include "libavfilter/formats.h" + +#undef fprintf +#undef printf + +static void print_formats(AVFilterContext *filter_ctx) +{ + int i, j; + +#define PRINT_FMTS(inout, outin, INOUT) \ + for (i = 0; i < filter_ctx->inout##put_count; 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->format_count; 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; \ + \ + fmts = filter_ctx->inout##puts[i]->outin##_formats; \ + for (j = 0; j < fmts->format_count; 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])); \ + \ + fmts = filter_ctx->inout##puts[i]->outin##_channel_layouts; \ + for (j = 0; j < fmts->format_count; j++) { \ + char buf[256]; \ + av_get_channel_layout_string(buf, sizeof(buf), -1, \ + fmts->formats[j]); \ + printf(#INOUT "PUT[%d] %s: chlayout:%s\n", \ + i, filter_ctx->filter->inout##puts[i].name, buf); \ + } \ + } \ + } \ + + PRINT_FMTS(in, out, IN); + PRINT_FMTS(out, in, OUT); +} + +int main(int argc, char **argv) +{ + AVFilter *filter; + AVFilterContext *filter_ctx; + const char *filter_name; + const char *filter_args = NULL; + int i; + + av_log_set_level(AV_LOG_DEBUG); + + if (!argv[1]) { + fprintf(stderr, "Missing filter name as argument\n"); + return 1; + } + + filter_name = argv[1]; + if (argv[2]) + filter_args = argv[2]; + + avfilter_register_all(); + + /* 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; + } + + if (avfilter_open(&filter_ctx, filter, NULL) < 0) { + fprintf(stderr, "Impossible to open filter with name '%s'\n", + filter_name); + return 1; + } + if (avfilter_init_filter(filter_ctx, filter_args, NULL) < 0) { + fprintf(stderr, "Impossible to init filter '%s' with arguments '%s'\n", + filter_name, filter_args); + return 1; + } + + /* create a link for each of the input pads */ + for (i = 0; i < filter_ctx->input_count; 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->output_count; i++) { + AVFilterLink *link = av_mallocz(sizeof(AVFilterLink)); + link->type = filter_ctx->filter->outputs[i].type; + filter_ctx->outputs[i] = link; + } + + if (filter->query_formats) + filter->query_formats(filter_ctx); + else + ff_default_query_formats(filter_ctx); + + print_formats(filter_ctx); + + avfilter_free(filter_ctx); + fflush(stdout); + return 0; +} |