Clear the codec_tag when creating a stream from a template

This is generally expected when re-muxing
PyAV-Org · Jun 9, 2016 · 825809c · 825809c
1 parent c22a5ee
commit 825809c
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diff --git a/av/container/output.pyx b/av/container/output.pyx
@@ -69,6 +69,11 @@ cdef class OutputContainer(Container):
  # Copy from the template.
  if template is not None:
  lib.avcodec_copy_context(codec_context, template._codec_context)
+ # Reset the codec tag assuming we are remuxing.
+ codec_context.codec_tag = 0
+ # Copy flags assuming we are remuxing.s
+ if self.proxy.ptr.oformat.flags & lib.AVFMT_GLOBALHEADER:
+ codec_context.flags |= lib.CODEC_FLAG_GLOBAL_HEADER
 
  # Now lets set some more sane video defaults
  elif codec.type == lib.AVMEDIA_TYPE_VIDEO:

diff --git a/include/libavcodec/avcodec.pxd b/include/libavcodec/avcodec.pxd
@@ -90,7 +90,9 @@ cdef extern from "libavcodec/avcodec.pyav.h" nogil:
 
  AVMediaType codec_type
  char codec_name[32]
+ unsigned int codec_tag
  AVCodecID codec_id
+
  int flags
  int thread_count