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examples/decoding_encoding: make operation logic more self-evident / predictable 

Add a switch which controls which operation to perform.  Useful to test
only a single feature. Also the new behavior is more self-consistent.
This commit is contained in:
Stefano Sabatini 2012-08-24 17:16:40 +02:00
parent 3b0e2763f4
commit 60924dfe55
1 changed files with 18 additions and 9 deletions
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27
doc/examples/decoding_encoding.c
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@ -600,24 +600,33 @@ static void video_decode_example(const char *outfilename, const char *filename)
int main(int argc, char **argv)
{
const char *filename;
const char *output_type;
/* register all the codecs */
avcodec_register_all();
if (argc <= 1) {
if (argc < 2) {
printf("usage: %s output_type\n"
"API example program to decode/encode a media stream with libavcodec.\n"
"output_type must be choosen between 'h264', 'mp2', 'mpg'\n",
argv[0]);
return 1;
}
output_type = argv[1];
if (!strcmp(output_type, "h264")) {
video_encode_example("test.h264", AV_CODEC_ID_H264);
} else if (!strcmp(output_type, "mp2")) {
audio_encode_example("test.mp2");
audio_decode_example("test.sw", "test.mp2");
video_encode_example("test.h264", AV_CODEC_ID_H264);
} else if (!strcmp(output_type, "mpg")) {
video_encode_example("test.mpg", AV_CODEC_ID_MPEG1VIDEO);
filename = "test.mpg";
video_decode_example("test%02d.pgm", "test.mpg");
} else {
filename = argv[1];
fprintf(stderr, "Invalid output type '%s', choose between 'h264', 'mp2', or 'mpg'\n",
output_type);
return 1;
}
// audio_decode_example("test.sw", filename);
video_decode_example("test%02d.pgm", filename);
return 0;
}