png_dec_init     1287 libavcodec/pngdec.c     .init           = png_dec_init,
png_dec_init     1290 libavcodec/pngdec.c     .init_thread_copy = ONLY_IF_THREADS_ENABLED(png_dec_init),
png_dec_init     1303 libavcodec/pngdec.c     .init           = png_dec_init,
png_dec_init     1306 libavcodec/pngdec.c     .init_thread_copy = ONLY_IF_THREADS_ENABLED(png_dec_init),