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https://github.com/tuxbox-neutrino/libstb-hal.git
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100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
/* konfetti
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* gpl
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* 2010
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*
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* example utitility to show metatags with ffmpeg.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <libavutil/avutil.h>
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#include <libavformat/avformat.h>
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static AVFormatContext* avContext = NULL;
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void dump_metadata()
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{
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#if LIBAVCODEC_VERSION_MAJOR < 54
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AVMetadataTag *tag = NULL;
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while ((tag = av_metadata_get(avContext->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
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#else
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AVDictionaryEntry *tag = NULL;
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while ((tag = av_dict_get(avContext->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
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#endif
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printf("%s: %s\n", tag->key, tag->value);
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}
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int main(int argc,char* argv[])
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{
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char file[255] = {""};
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int err, i;
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if (argc < 2)
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{
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printf("give me a filename please\n");
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return -1;
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}
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if (strstr(argv[1], "://") == NULL)
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{
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strcpy(file, "file://");
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}
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strcat(file, argv[1]);
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av_register_all();
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#if LIBAVCODEC_VERSION_MAJOR < 54
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if ((err = av_open_input_file(&avContext, file, NULL, 0, NULL)) != 0) {
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#else
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if ((err = avformat_open_input(&avContext, file, NULL, 0)) != 0) {
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#endif
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char error[512];
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#if LIBAVCODEC_VERSION_MAJOR < 54
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printf("av_open_input_file failed %d (%s)\n", err, file);
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#else
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printf("avformat_open_input failed %d (%s)\n", err, file);
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#endif
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av_strerror(err, error, 512);
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printf("Cause: %s\n", error);
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return -1;
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}
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if (av_find_stream_info(avContext) < 0)
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{
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printf("Error av_find_stream_info\n");
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}
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printf("\n***\n");
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dump_metadata();
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printf("\nstream specific metadata:\n");
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for (i = 0; i < avContext->nb_streams; i++)
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{
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AVStream* stream = avContext->streams[i];
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if (stream)
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{
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#if LIBAVCODEC_VERSION_MAJOR < 54
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AVMetadataTag *tag = NULL;
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#else
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AVDictionaryEntry *tag = NULL;
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#endif
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if (stream->metadata != NULL)
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#if LIBAVCODEC_VERSION_MAJOR < 54
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while ((tag = av_metadata_get(stream->metadata, "", tag, AV_METADATA_IGNORE_SUFFIX)))
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#else
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while ((tag = av_dict_get(stream->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
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#endif
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printf("%s: %s\n", tag->key, tag->value);
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}
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}
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return 0;
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}
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