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Add a generic function to lavc to log messages about missing features.

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Patch by Justin Ruggles (justin ruggles gmail com)

Originally committed as revision 14685 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles 2008-08-10 20:29:43 +00:00 committed by Robert Swain
parent af1761915b
commit ea779d91ca
2 changed files with 25 additions and 0 deletions
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12
libavcodec/avcodec.h
View File

@ -3011,6 +3011,18 @@ int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str);
*/
int av_parse_video_frame_rate(AVRational *frame_rate, const char *str);
/**
* Logs a generic warning message about a missing feature.
* @param[in] avc a pointer to an arbitrary struct of which the first field is
* a pointer to an AVClass struct
* @param[in] feature string containing the name of the missing feature
* @param[in] want_sample indicates if samples are wanted which exhibit this feature.
* If \p want_sample is non-zero, additional verbage will be added to the log
* message which tells the user how to report samples to the development
* mailing list.
*/
void av_log_missing_feature(void *avc, const char *feature, int want_sample);
/* error handling */
#if EINVAL > 0
#define AVERROR(e) (-(e)) /**< Returns a negative error code from a POSIX error code, to return from library functions. */

13
libavcodec/utils.c
View File

@ -1513,3 +1513,16 @@ int av_parse_video_frame_rate(AVRational *frame_rate, const char *arg)
else
return 0;
}
void av_log_missing_feature(void *avc, const char *feature, int want_sample)
{
av_log(avc, AV_LOG_WARNING, "%s not implemented. Update your FFmpeg "
"version to the newest one from SVN. If the problem still "
"occurs, it means that your file has a feature which has not "
"been implemented.", feature);
if(want_sample)
av_log(avc, AV_LOG_WARNING, " If you want to help, upload a sample "
"of this file to ftp://upload.mplayerhq.hu/MPlayer/incoming/ "
"and contact the FFmpeg-devel mailing list.");
av_log(avc, AV_LOG_WARNING, "\n");
}