[FFmpeg-devel] Command-line parameters used too late for has_codec_parameters()

Alexandre FERRIEUX - FT/RD/SIRP/ASF/SOFTL alexandre.ferrieux
Fri Jan 16 11:30:14 CET 2009


Currently in av_find_stream_info(), the logic deciding whether or not to 
engage into parameter-guessing (by pre-reading several frames), which 
calls  has_codec_parameters(), comes _before_ command-line parameters 
like -pix_fmt get copied into the fields of the codec.

The net result is that the parameter-guessing game is played even though 
  all needed params have been provided in the command-line.

Am I missing something, or is the analysis correct ?


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