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Andreas Rheinhardt authored
It only uses an AVIOContext and an AVBPrint. When doing so, it turned out that several non-users of ff_read_line_to_bprint_overwrite() and ff_bprint_to_codecpar_extradata() relied on libavformat/internal.h to include bprint.h or avstring.h for them. In order to avoid a repeat of this and in order to reduce unnecessary dependencies, a forward declaration of struct AVBPrint is used instead of including bprint.h. Signed-off-by:
Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
fd101c9c