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print fourcc in a readable form if possible

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Originally committed as revision 4554 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-09-03 20:36:24 +00:00
parent d156a7b7f1
commit b983a5c608
1 changed files with 5 additions and 3 deletions
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8
libavcodec/utils.c
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@ -767,12 +767,14 @@ void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode)
codec_name = enc->codec_name;
} else {
/* output avi tags */
if (enc->codec_type == CODEC_TYPE_VIDEO) {
snprintf(buf1, sizeof(buf1), "%c%c%c%c",
if( isprint(enc->codec_tag&0xFF) && isprint((enc->codec_tag>>8)&0xFF)
&& isprint((enc->codec_tag>>16)&0xFF) && isprint((enc->codec_tag>>24)&0xFF)){
snprintf(buf1, sizeof(buf1), "%c%c%c%c / 0x%04X",
enc->codec_tag & 0xff,
(enc->codec_tag >> 8) & 0xff,
(enc->codec_tag >> 16) & 0xff,
(enc->codec_tag >> 24) & 0xff);
(enc->codec_tag >> 24) & 0xff,
enc->codec_tag);
} else {
snprintf(buf1, sizeof(buf1), "0x%04x", enc->codec_tag);
}