[FFmpeg-devel] ABI break in 5.1

[Jan Engelhardt]

This is a follow-up to a topic that was already raised earlier,
http://ffmpeg.org/pipermail/ffmpeg-devel/2020-July/265694.html 

The same has now happened to 5.0->5.1.

==========================================
abidiff /usr/lib64/libavcodec.so.59.18.100 b/usr/lib64/libavcodec.so.59.37.100
Functions changes summary: 0 Removed, 0 Changed, 0 Added function
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable
Function symbols changes summary: 1 Removed, 0 Added function symbol not referenced by debug info
Variable symbols changes summary: 0 Removed, 0 Added variable symbol not referenced by debug info

1 Removed function symbol not referenced by debug info:

  [D] avpriv_h264_has_num_reorder_frames@@LIBAVCODEC_59

==========================================
abidiff /usr/lib64/libavdevice.so.59.4.100 b/usr/lib64/libavdevice.so.59.7.100

==========================================
abidiff /usr/lib64/libavfilter.so.8.24.100 b/usr/lib64/libavfilter.so.8.44.100
Functions changes summary: 0 Removed, 0 Changed, 0 Added function
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable
Function symbols changes summary: 0 Removed, 1 Added function symbol not referenced by debug info
Variable symbols changes summary: 0 Removed, 0 Added variable symbol not referenced by debug info

1 Added function symbol not referenced by debug info:

  [A] av_buffersink_get_ch_layout@@LIBAVFILTER_8

==========================================
abidiff /usr/lib64/libavformat.so.59.16.100 b/usr/lib64/libavformat.so.59.27.100
Functions changes summary: 0 Removed, 0 Changed, 0 Added function
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable
Function symbols changes summary: 0 Removed, 1 Added function symbol not referenced by debug info
Variable symbols changes summary: 0 Removed, 0 Added variable symbol not referenced by debug info

1 Added function symbol not referenced by debug info:

  [A] avio_vprintf@@LIBAVFORMAT_59

==========================================
abidiff /usr/lib64/libavutil.so.57.17.100 b/usr/lib64/libavutil.so.57.28.100
Functions changes summary: 0 Removed, 0 Changed, 0 Added function
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable
Function symbols changes summary: 0 Removed, 47 Added function symbols not referenced by debug info
Variable symbols changes summary: 0 Removed, 0 Added variable symbol not referenced by debug info

47 Added function symbols not referenced by debug info:

  [A] av_channel_description@@LIBAVUTIL_57
  [A] av_channel_description_bprint@@LIBAVUTIL_57
  [A] av_channel_from_string@@LIBAVUTIL_57
  [A] av_channel_layout_channel_from_index@@LIBAVUTIL_57
  [A] av_channel_layout_channel_from_string@@LIBAVUTIL_57
  [A] av_channel_layout_check@@LIBAVUTIL_57
  [A] av_channel_layout_compare@@LIBAVUTIL_57
  [A] av_channel_layout_copy@@LIBAVUTIL_57
  [A] av_channel_layout_default@@LIBAVUTIL_57
  [A] av_channel_layout_describe@@LIBAVUTIL_57
  [A] av_channel_layout_describe_bprint@@LIBAVUTIL_57
  [A] av_channel_layout_from_mask@@LIBAVUTIL_57
  [A] av_channel_layout_from_string@@LIBAVUTIL_57
  [A] av_channel_layout_index_from_channel@@LIBAVUTIL_57
  [A] av_channel_layout_index_from_string@@LIBAVUTIL_57
  [A] av_channel_layout_standard@@LIBAVUTIL_57
  [A] av_channel_layout_subset@@LIBAVUTIL_57
  [A] av_channel_layout_uninit@@LIBAVUTIL_57
  [A] av_channel_name@@LIBAVUTIL_57
  [A] av_channel_name_bprint@@LIBAVUTIL_57
  [A] av_csp_luma_coeffs_from_avcsp@@LIBAVUTIL_57
  [A] av_csp_primaries_desc_from_id@@LIBAVUTIL_57
  [A] av_csp_primaries_id_from_desc@@LIBAVUTIL_57
  [A] av_dynamic_hdr_vivid_alloc@@LIBAVUTIL_57
  [A] av_dynamic_hdr_vivid_create_side_data@@LIBAVUTIL_57
  [A] av_fifo_alloc2@@LIBAVUTIL_57
  [A] av_fifo_auto_grow_limit@@LIBAVUTIL_57
  [A] av_fifo_can_read@@LIBAVUTIL_57
  [A] av_fifo_can_write@@LIBAVUTIL_57
  [A] av_fifo_drain2@@LIBAVUTIL_57
  [A] av_fifo_elem_size@@LIBAVUTIL_57
  [A] av_fifo_freep2@@LIBAVUTIL_57
  [A] av_fifo_grow2@@LIBAVUTIL_57
  [A] av_fifo_peek@@LIBAVUTIL_57
  [A] av_fifo_peek_to_cb@@LIBAVUTIL_57
  [A] av_fifo_read@@LIBAVUTIL_57
  [A] av_fifo_read_to_cb@@LIBAVUTIL_57
  [A] av_fifo_reset2@@LIBAVUTIL_57
  [A] av_fifo_write@@LIBAVUTIL_57
  [A] av_fifo_write_from_cb@@LIBAVUTIL_57
  [A] av_opt_get_chlayout@@LIBAVUTIL_57
  [A] av_opt_set_chlayout@@LIBAVUTIL_57
  [A] av_uuid_parse@@LIBAVUTIL_57
  [A] av_uuid_parse_range@@LIBAVUTIL_57
  [A] av_uuid_unparse@@LIBAVUTIL_57
  [A] av_uuid_urn_parse@@LIBAVUTIL_57
  [A] avpriv_fopen_utf8@@LIBAVUTIL_57

==========================================
abidiff /usr/lib64/libswresample.so.4.3.100 b/usr/lib64/libswresample.so.4.7.100
Functions changes summary: 0 Removed, 0 Changed, 0 Added function
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable
Function symbols changes summary: 0 Removed, 2 Added function symbols not referenced by debug info
Variable symbols changes summary: 0 Removed, 0 Added variable symbol not referenced by debug info

2 Added function symbols not referenced by debug info:

  [A] swr_alloc_set_opts2@@LIBSWRESAMPLE_4
  [A] swr_build_matrix2@@LIBSWRESAMPLE_4

==========================================
abidiff /usr/lib64/libswscale.so.6.4.100 b/usr/lib64/libswscale.so.6.7.100

==========================================
abidiff /usr/lib64/libpostproc.so.56.3.100 b/usr/lib64/libpostproc.so.56.6.100

==========================================