nm -D libswscale.so
0000000000000000 A LIBSWSCALE_5
                 w _ITM_deregisterTMCloneTable
                 w _ITM_registerTMCloneTable
                 w _Jv_RegisterClasses
                 w __cxa_finalize@GLIBC_2.2.5
                 w __gmon_start__
                 U abort@GLIBC_2.2.5
                 U av_free@LIBAVUTIL_56
                 U av_freep@LIBAVUTIL_56
                 U av_get_bits_per_pixel@LIBAVUTIL_56
                 U av_get_cpu_flags@LIBAVUTIL_56
                 U av_get_pix_fmt_name@LIBAVUTIL_56
                 U av_image_alloc@LIBAVUTIL_56
                 U av_log@LIBAVUTIL_56
                 U av_malloc@LIBAVUTIL_56
                 U av_malloc_array@LIBAVUTIL_56
                 U av_mallocz@LIBAVUTIL_56
                 U av_mallocz_array@LIBAVUTIL_56
                 U av_opt_get_int@LIBAVUTIL_56
                 U av_opt_set_defaults@LIBAVUTIL_56
                 U av_opt_set_int@LIBAVUTIL_56
                 U av_pix_fmt_desc_get@LIBAVUTIL_56
                 U av_pix_fmt_get_chroma_sub_sample@LIBAVUTIL_56
                 U av_pix_fmt_swap_endianness@LIBAVUTIL_56
                 U ceil@GLIBC_2.2.5
                 U cos@GLIBC_2.2.5
                 U exp@GLIBC_2.2.5
                 U exp2@GLIBC_2.2.5
                 U memcmp@GLIBC_2.2.5
                 U mmap64@GLIBC_2.2.5
                 U mprotect@GLIBC_2.2.5
                 U munmap@GLIBC_2.2.5
                 U pow@GLIBC_2.2.5
                 U sin@GLIBC_2.2.5
0000000000041c97 T sws_addVec@@LIBSWSCALE_5
0000000000041a0a T sws_allocVec@@LIBSWSCALE_5
0000000000041953 T sws_alloc_context@@LIBSWSCALE_5
0000000000041987 T sws_alloc_set_opts@@LIBSWSCALE_5
0000000000041f2a T sws_cloneVec@@LIBSWSCALE_5
0000000000041e8d T sws_convVec@@LIBSWSCALE_5
000000000003c400 T sws_convertPalette8ToPacked24@@LIBSWSCALE_5
000000000003c3e7 T sws_convertPalette8ToPacked32@@LIBSWSCALE_5
0000000000042464 T sws_freeContext@@LIBSWSCALE_5
000000000004242e T sws_freeFilter@@LIBSWSCALE_5
0000000000042048 T sws_freeVec@@LIBSWSCALE_5
0000000000042fdc T sws_getCachedContext@@LIBSWSCALE_5
000000000005da5a T sws_getCoefficients@@LIBSWSCALE_5
0000000000041900 T sws_getColorspaceDetails@@LIBSWSCALE_5
0000000000041a6c T sws_getConstVec@@LIBSWSCALE_5
00000000000425d8 T sws_getContext@@LIBSWSCALE_5
0000000000042067 T sws_getDefaultFilter@@LIBSWSCALE_5
0000000000041af8 T sws_getGaussianVec@@LIBSWSCALE_5
0000000000041aa2 T sws_getIdentityVec@@LIBSWSCALE_5
000000000001265c T sws_get_class@@LIBSWSCALE_5
0000000000004ee2 T sws_init_context@@LIBSWSCALE_5
00000000000418df T sws_isSupportedEndiannessConversion@@LIBSWSCALE_5
00000000000418a1 T sws_isSupportedInput@@LIBSWSCALE_5
00000000000418bf T sws_isSupportedOutput@@LIBSWSCALE_5
0000000000041ad6 T sws_normalizeVec@@LIBSWSCALE_5
0000000000041f4d T sws_printVec2@@LIBSWSCALE_5
00000000000347c1 T sws_scale@@LIBSWSCALE_5
0000000000041ab4 T sws_scaleVec@@LIBSWSCALE_5
0000000000042616 T sws_setColorspaceDetails@@LIBSWSCALE_5
0000000000041be1 T sws_shiftVec@@LIBSWSCALE_5
0000000000041d92 T sws_subVec@@LIBSWSCALE_5
0000000000041891 T swscale_configuration@@LIBSWSCALE_5
0000000000041899 T swscale_license@@LIBSWSCALE_5
000000000004188b T swscale_version@@LIBSWSCALE_5